It's more insidious than that. These IPOs aren't being rushed, they were waiting for all the pieces to be in place to force 401ks and other retirement plans to buy these IPOs.
The most recent change was the NASDAQ adopting the "fast change rule" which allows newly IPO'd companies to be listed in the index after only 15 days of trading. This rule was decided March 30, 2026 and only came into effect May 1, 2026.
The plan is to rapidly drive these prices up in the first 15 days, get the companies listed in the NASDAQ so funds are forced to purchase them at higher prices, then leave retirement accounts holding the bag.
> The most recent change was the NASDAQ adopting the "fast change rule" which allows newly IPO'd companies to be listed in the index after only 15 days of trading.
Official justification, and other changes besides timeframe, e.g.:
> First, eligibility and company size. As multi‑class share structures have become more common, we now consider both listed and unlisted shares when determining eligibility and ranking. This allows the index to reflect a company's full economic size, while index weighting remains based solely on listed shares. This change affects who qualifies for inclusion, not how constituents are weighted.
> A new method to calculate the market capitalization of companies to determine their eligibility for inclusion in the index. It involves adding listed stock and unlisted shares that are part of different share classes. Scrapping a rule that requires companies to float a minimum 10% of their shares. Companies with a low float will receive a lower weighting on the index. […]
This has been a thing in the CRSP indexes (ie. the benchmark for Vanguard’s VTI) forever. As long as it meets float and cap requirements, it’s inserted into the indexes five days after trading begins.
It makes sense. They intend to track the market as it is.
Though, you can definitely make the case that the popularization of index funds has allowed their holders to essentially become patsies to hype IPOs.
Even with the CRSP indexes this was recently changed to make fast-tracking for these IPOs easier.[0]
> CRSP indexes were also recently changed to better accommodate fast entry . . . Previously, these screens included having at least 10% of shares qualifying as freely tradeable (known as float shares outstanding, or FSO). However, in April the methodology changed to allow stocks with either 10% FSO or approximately $3.3 billion in float-adjusted market capitalization to be eligible for index inclusion.
That change is notable because both Anthropic and SpaceX are planning to IPO at well under that old 10% requirement.
>The plan is to rapidly drive these prices up in the first 15 days, get the companies listed in the NASDAQ so funds are forced to purchase them at higher prices, then leave retirement accounts holding the bag.
Dumb question: why couldn't retirement accounts simply not purchase these?
These funds don’t invest actively (picking individual stocks). Instead they invest in indexes that track larger portions of the market. So they’ll automatically buy once the company is listed on the NASDAQ.
Why do I imagine that no one whose retirement account is about to get smoked is in place to make decisions about whether or not this is a good investment
Total market indexes and target date funds will include this and SpaceX on float adjusted basis I believe. The blast radius is much larger than funds that track the NASDAQ directly.
almost all 401k plans offer funds based on s&p 500, not nasdaq/russell others. s&p has also halved their trading days requirement from 1 yr to 6 months, but that's still sufficient to be past the post-ipo lock-up period.
I get the sentiment that this is unscrupulous, however, isn't 15 days enough time to find the right price? Or will that not really happen until first quarterly earnings report, which will not occur within that 15 day window?
Very true. Anthropic just raised money at the end of last week.
There's no way they could have done that without telling those investors the S-1 was prepared and awaiting their signature on the round before they hit Submit, so to speak.
Many individuals can, but good luck reaching out and convincing the entire country that they should look into making changes to their retirement fund allocations without sounding like a kook.
There's maybe, at best, 1% of the country even aware that this might be a problem.
You can protect yourself, but many won't be aware of the situation until it's too late, and institutionally managed funds won't be able to change their rules in time to avoid holding these as part of the index funds they hold.
Exactly. Incredibly hard to understand what hard, non-headline-quoting, steel man arguments there are about how exactly the market will hiccup. And as if all of the AI companies somehow know this and are looking to IPO themselves out when anthropic revenue is growing > 10x per year for multiple years. Feels like a massive disconnect between “this will all implode” people and any real numbers.
If OpenAI and Anthropic eventually become public companies with trillion-dollar valuations, it will be interesting to see if their company ethos remains the same. With that much purchasing power, it's very tempting to gobble up competitors and raise prices.
The real competition is coming out of China right now and I doubt the Chinese government is going to let them buy out their "fast follower" AI companies that are consistently 6-12 months behind in terms of quality. That said, I'm factoring quality as in Opus 4.5/Sonnet 4.5/GPT-5.5 as break points since I haven't really seen an improvement since that point when using AI.
You speak so authoritatively about quality and performance of these models, yet there are no quantitative metrics that correlate to real world outcomes that indicate that the quality and performance of these models is anything but subjective noise and classic benchmark nonsense.
A company consumed half a billion dollars worth of tokens in a month and nobody noticed anything until the bill came due.
Tha $500m dollars is roughly equivalent to 2000 people working for a year or 500 people working for four years, they can and would accomplish a lot if they worked in companies that add value to the economy by solving real problems.
Indeed Its irrelevant. Each firm will make its own cost-benefit analysis, especially since the frontier labs are raising prices.
Marketing only takes you so far in creating noise.
Its weird seeing this focus on bench marks again - PC's did this for quite some time. But in the end it came down to - what does all this additional horsepower let you do? Oh create interesting apps, multi-tasking etc. Which was really the value-add.
I’m curious which will start producing hardware be it robotics, consumer or commercial devices, chips, energy infrastructure or transforming shipping crates into housing for jobless humans. Maybe even tanks of gel with arrays of humans in suspended animation reading our biometrics, thoughts, pumping in nutrients and training on the data. O_o
Who else right now is making competing models that are roughly as capable? Now factor in hardware availability / future delivery contracts and capital requirements for building datacenters and running new training. If you're trying to compete and lease all that with VC money or loans, good luck actually competing.
S-1 isn’t public yet. Source on the lockup period? SpaceX for example filed with accelerated release of insider/investor shares so I don’t think we can know if this is the case until the filing documents become public.
I'm sure they can get private loads or similiar way to "hedge" those? also dark markets and other tricks exist. Fin. eng. level goes way higher for them, just contact inv. banker or their lower class friends. They will find a way.
As you likely know, rules have recently been changed that basically force many 401k funds to invest in these IPOs while simultaneously having a relatively small number of the initial IPO to be sold to the public forcing the funds to by at inflated prices.
The bubble won't pop until these retirement accounts of have been raided.
I'm pretty sure that's the change GP is referring to. But pension funds can choose to specifically exclude such companies. The Danish pension fund has already excluded SpaceX, which owns xAI. (This also probably relates to American threats of annexation of Danish territories, not just AI stuff.)
And as suspected, the Anthropic deal is not recurring revenue, its just a think they can cancel anytime with 90 days notice...Release the bad news slowly and when people are looking somewhere else...
SpaceX AI segment lost about $2.5B from operations in Q1 2026 on $818M revenue...they are burning dollars. Musk controls about 85% of voting power through supervoting shares, and cannot be fired...go IPO buyers...nothing like economic exposure without control....
Is it actually refreshing? It's actually refreshing to see Stripe staying private for so long. That means, they have a sustainable business model, and can take on projects that might benefit users in the long term despite negative short term consequences instead of focus on growing at all cost for the most part.
Stripe seems to be doing fairly well as a private company. They continually offer liquidity events for employees to cash out, while also retaining less pressure for hypergrowth from outside activists and investors.
It's the contents of the submission that are confidential, not the fact that they are submitting.
The contents themselves contain a lot of detailed information about the internals of the company including financials, revenue, ownership details etc... those details are what's confidential until the SEC gives its approval, at which point the public can then review the document.
“Passive investing” is not the same as “buying anything at any price”. Index funds follow transparent rules and weights. If the company is overvalued, that overvaluation is set by the wider market, not just passive investors.
I've heard of the changes to the NASDAQ rules and I somewhat get how they make it so these stocks are included in index funds earlier than before. As far as I know, NYSE and others haven't done the same change so index funds there are "safe", i.e. will include the stocks only after a longer period, implying that it will have settled in value by then. Is that true at all? I'm sure the situation is much more complicated, but I do wonder how to figure out how much I'm affected.
There is a huge amount of misinformation on this topic, including in this thread, at the minute.
Some index funds have a very long horizon before they include them (e.g. a year). Others are "fast-tracked" (e.g. notably VTI). Most of those, however, are float-adjusted, so only the stock available for trade is considered part of the marketcap. So e.g. VTI / VTSAX will buy spacex relatively quickly after the IPO but at the float-adjusted weight of ~$75B because that's the % of stock available.
If you care alot about this, now is the time to understand how your index fund treats IPOs wrt to delays + float adjustment.
Specifically, I do a typical 3FP and own VTSAX, but I don't read bogleheads or anything. True set-it-and-forget-it, but I do want to read more if things are shifting.
You should not trust me, but here's my understanding. I wish there was a really good writeup somewhere to explain this authoritatively but I'm not sure there is one. Would also love to see one. Frankly vanguard should do it.
VTSAX (and VTI) follow the CRSP index. This is float-adjusted but they likely will be fast tracked (these are two separate rules in how this index chooses to weight things and participate in new stocks). At ~5% float, these companies will be in the 50-100B range. So under all those assumptions, they'll be bought quickly but represent less than 1% of VTSAX (until they float more shares on the public market).
why did they raise 3 days ago? What's the benefit of doing this instead of going public right away? If it's just cash to pay for GPUs, can't they issue bonds or something?
You pretty much always do a late-stage private round shortly before an IPO, that is the standard. The goal of the late-stage funding round is to give a better idea of how much capital can be raised by the IPO. It helps reduce uncertainty about expectations of what the company is worth before going public.
IPO isn't really about "raising money for the company" any longer, unless one means raising the money in their wallets so they can take the money and run.
With SpaceX, OpenAI, and Anthropic, we're likely to see 3 of the largest IPOs ever (by a wide margin) this year. Will existing institutional investors trim other positions to allocate a lot of capital for these mega listings or is this not a concern?
Most likely. Funds generally don't have much unallocated cash, they operate fully invested, so three huge IPOs will force an asset rebalancing which can cause some liquidity drain from the rest of the market.
Plus as insider lockup periods expire, that's a ton of dollars pulled out of the market and into safer assets. It's going to be a huge net exit of capital.
I'd expect a lot of volatility and pretty heavy downward pressure across the rest of tech.
They are scared of underperfoming the market and failing to exist as an index. Losing money with everyone else is a more sustainable risk than losing money while other indexes go up.
Not true for Vanguard's total US stock market fund (VTSAX/VTI), the largest total US stock market fund in the world. Their CRSP index only requires 20 trading days post IPO, or 5 for large caps (this has been true for many years, this is not a recent change)
Maybe. If you read the fine print they are not. They have the goal of matching the index returns, but they never say anywhere they have exactly the stocks in the index.
Index funds all make active choices and often hold companies not in the original index. They are more passive than a traditional funds that buys and sells all the time, but they still make active choices. When an index changes stocks they can look up the price - but the funds mirroring the index need to make real trades that if not carefully done will change the value of the stocks (and cause the fund to under perform the index), so index funds have plans to prevent this. Compared to a traditional fund an index fund looks passive and there is much much less for the manager to do - but that doesn't mean the managers do nothing.
But only the amount the company floats for many index funds. So in the case of SpaceX, they are only floating 5% of the company. So the number of shares something like VTI has to buy is much smaller than the total market cap (5% of it).
It means that Anthropic has submitted a document that it intends to share with the public in order to solicit public investment. This document includes details about its business, financials/revenue, ownership structure, risks, etc...
The document itself is what's confidential until the SEC approves it, at which point Anthropic will release that document to the public and IPO.
Of course that fundraise was the last one: [0], everyone getting ready to dump their pre-IPO shares on to you as China catches up with their open models.
Better to do it now than to wait a day longer and the tokens are not getting any cheaper here.
Obviously OpenAI will file for IPO certainly this month, or even this week in response both SpaceX, and Anthropic.
This is actually the pin everyone was looking for that will pop this AI bubble, including the token cost falling in China and the release of open models that are good and run locally.
It could be, but the market could bounce right back. And if it does, it's hard to know who will emerge stronger. Anthropic could end up like Amazon, or it could end up like Yahoo.
Every post anthropic generates feels like misdirection and bad summarization using AI. There is no sense of who the audience for this post is for and includes a lot of redundant information.
Can't see the relevance of this comment to the post. You can do a Google search for "confidentially submits draft S-1 to the SEC" to see other examples of companies announcing these submissions and they're all written in the same way.
It's just a standard/template that most companies reuse.
Is there any real reason to have generated announcements anyway? You could get more polished text with some copy editors and I can't imagine cost is really a big concern for it.
There is a mad rush to get these IPOs out the door before the market sneezes.
It's more insidious than that. These IPOs aren't being rushed, they were waiting for all the pieces to be in place to force 401ks and other retirement plans to buy these IPOs.
The most recent change was the NASDAQ adopting the "fast change rule" which allows newly IPO'd companies to be listed in the index after only 15 days of trading. This rule was decided March 30, 2026 and only came into effect May 1, 2026.
The plan is to rapidly drive these prices up in the first 15 days, get the companies listed in the NASDAQ so funds are forced to purchase them at higher prices, then leave retirement accounts holding the bag.
It is not going to take 15 days for short selling hedge funds to right-price these IPOs. It is going to take something closer to a few seconds.
> The most recent change was the NASDAQ adopting the "fast change rule" which allows newly IPO'd companies to be listed in the index after only 15 days of trading.
Official justification, and other changes besides timeframe, e.g.:
> First, eligibility and company size. As multi‑class share structures have become more common, we now consider both listed and unlisted shares when determining eligibility and ranking. This allows the index to reflect a company's full economic size, while index weighting remains based solely on listed shares. This change affects who qualifies for inclusion, not how constituents are weighted.
* https://www.nasdaq.com/newsroom/nasdaq100-index-methodology-...
> A new method to calculate the market capitalization of companies to determine their eligibility for inclusion in the index. It involves adding listed stock and unlisted shares that are part of different share classes. Scrapping a rule that requires companies to float a minimum 10% of their shares. Companies with a low float will receive a lower weighting on the index. […]
* https://www.reuters.com/business/new-nasdaq-rules-include-fa...
This has been a thing in the CRSP indexes (ie. the benchmark for Vanguard’s VTI) forever. As long as it meets float and cap requirements, it’s inserted into the indexes five days after trading begins.
It makes sense. They intend to track the market as it is.
Though, you can definitely make the case that the popularization of index funds has allowed their holders to essentially become patsies to hype IPOs.
> As long as it meets float and cap requirements
Even with the CRSP indexes this was recently changed to make fast-tracking for these IPOs easier.[0]
> CRSP indexes were also recently changed to better accommodate fast entry . . . Previously, these screens included having at least 10% of shares qualifying as freely tradeable (known as float shares outstanding, or FSO). However, in April the methodology changed to allow stocks with either 10% FSO or approximately $3.3 billion in float-adjusted market capitalization to be eligible for index inclusion.
That change is notable because both Anthropic and SpaceX are planning to IPO at well under that old 10% requirement.
[0]https://www.schwab.com/learn/story/some-indexes-accelerate-e...
>The plan is to rapidly drive these prices up in the first 15 days, get the companies listed in the NASDAQ so funds are forced to purchase them at higher prices, then leave retirement accounts holding the bag.
Dumb question: why couldn't retirement accounts simply not purchase these?
These funds don’t invest actively (picking individual stocks). Instead they invest in indexes that track larger portions of the market. So they’ll automatically buy once the company is listed on the NASDAQ.
Why do I imagine that no one whose retirement account is about to get smoked is in place to make decisions about whether or not this is a good investment
Seems like there should be a market for a no-Elon/OpenAI/Anthropic ETF out there.
Or one that just imposes a reasonable waiting period on adding newly-IPO’d listings.
Very few 401ks offer the NASDAQ 100 as an investment option. Last I checked it was <1%.
Apparently the rule change also affects CRSP, which is the index behind Vanguard's Total Stock Market (VTI) index funds.
https://finance.yahoo.com/markets/stocks/articles/spacex-ipo...
VTI in turn is the primary holding of most of Vanguard's Target Date retirement funds, which are widely held in 401ks.
Total market indexes and target date funds will include this and SpaceX on float adjusted basis I believe. The blast radius is much larger than funds that track the NASDAQ directly.
almost all 401k plans offer funds based on s&p 500, not nasdaq/russell others. s&p has also halved their trading days requirement from 1 yr to 6 months, but that's still sufficient to be past the post-ipo lock-up period.
I don't think the S&P has actually made a decision yet. It is in progress, though: "The S&P Index Consultation on MegaCap IPOs" is the search term
I get the sentiment that this is unscrupulous, however, isn't 15 days enough time to find the right price? Or will that not really happen until first quarterly earnings report, which will not occur within that 15 day window?
The fact that you know there’s a large pool of price insensitive buyers only 15 days away has to have some price impact.
No, IPO pops, and honey moon periods are common.
And there are plenty of ways to manipulate the price, such as issuing a low float to a hyper hyped stock..
I mean the goal is that you have multiple earnings report to show sustainability.
Meanwhile some of these companies are also lobbying to be able to only have to submit annual or biannual earnings reports, too.
Everyone is looking for multiple ways to leave the dumb money holding the bag.
How do these people sleep at night coming up with schemes like that?
On a big pile of money surrounded by beautiful women.
They don't. They work all night to invent them.
The use of people suggests they are human. I wonder sometimes.
Edit: oh looky did I inflame the PE simians?
Very true. Anthropic just raised money at the end of last week.
There's no way they could have done that without telling those investors the S-1 was prepared and awaiting their signature on the round before they hit Submit, so to speak.
If you believe this is going to happen you can change the allocations of your retirement plans.
Many individuals can, but good luck reaching out and convincing the entire country that they should look into making changes to their retirement fund allocations without sounding like a kook.
There's maybe, at best, 1% of the country even aware that this might be a problem.
You can protect yourself, but many won't be aware of the situation until it's too late, and institutionally managed funds won't be able to change their rules in time to avoid holding these as part of the index funds they hold.
What should we be looking for?
what is going to cause the market to “sneeze”?
Exactly. Incredibly hard to understand what hard, non-headline-quoting, steel man arguments there are about how exactly the market will hiccup. And as if all of the AI companies somehow know this and are looking to IPO themselves out when anthropic revenue is growing > 10x per year for multiple years. Feels like a massive disconnect between “this will all implode” people and any real numbers.
And oh boy do they make sure everyone knows that they are doing an IPO
If OpenAI and Anthropic eventually become public companies with trillion-dollar valuations, it will be interesting to see if their company ethos remains the same. With that much purchasing power, it's very tempting to gobble up competitors and raise prices.
They already do both.
The real competition is coming out of China right now and I doubt the Chinese government is going to let them buy out their "fast follower" AI companies that are consistently 6-12 months behind in terms of quality. That said, I'm factoring quality as in Opus 4.5/Sonnet 4.5/GPT-5.5 as break points since I haven't really seen an improvement since that point when using AI.
They'll just lobby to ban Chinese models as they're already doing.
You speak so authoritatively about quality and performance of these models, yet there are no quantitative metrics that correlate to real world outcomes that indicate that the quality and performance of these models is anything but subjective noise and classic benchmark nonsense.
A company consumed half a billion dollars worth of tokens in a month and nobody noticed anything until the bill came due.
Tha $500m dollars is roughly equivalent to 2000 people working for a year or 500 people working for four years, they can and would accomplish a lot if they worked in companies that add value to the economy by solving real problems.
Indeed Its irrelevant. Each firm will make its own cost-benefit analysis, especially since the frontier labs are raising prices.
Marketing only takes you so far in creating noise.
Its weird seeing this focus on bench marks again - PC's did this for quite some time. But in the end it came down to - what does all this additional horsepower let you do? Oh create interesting apps, multi-tasking etc. Which was really the value-add.
The question is not "if" they will lose their ethos but "how long will it take".
If "Open AI" was their ethos, it was lost immediately. I'm not sure what the ethos of Anthropic is.
I gather most of the ethos behind Anthropic is "we don't want to work with Sam".
Go public so everybody can benefit?
corporate pursuit of monopoly is as sure a phenomenon as gravity
I’m curious which will start producing hardware be it robotics, consumer or commercial devices, chips, energy infrastructure or transforming shipping crates into housing for jobless humans. Maybe even tanks of gel with arrays of humans in suspended animation reading our biometrics, thoughts, pumping in nutrients and training on the data. O_o
IPO won't lose their ethos. Competition out from their duopoly will.
Who else right now is making competing models that are roughly as capable? Now factor in hardware availability / future delivery contracts and capital requirements for building datacenters and running new training. If you're trying to compete and lease all that with VC money or loans, good luck actually competing.
There is significant first-mover advantage for torching your ethos.
> if their company ethos remains the same.
What? In what way would the change? They are already raising prices..
what is their company ethos? They are some of the most despicable tech companies in my opinion.
SpaceX submitted an amendment to their S-1 today[1]
[1]: https://www.sec.gov/Archives/edgar/data/1181412/000162828026...
Are we in a race to see who can pop the bubble first?
They all know it’s coming, if it pops before they ipo then they don’t get their billion dollar payday, they have every incentive to move quickly.
FYI they have about a 365 day lockup after IPO before the execs can sell.
S-1 isn’t public yet. Source on the lockup period? SpaceX for example filed with accelerated release of insider/investor shares so I don’t think we can know if this is the case until the filing documents become public.
I'm sure they can get private loads or similiar way to "hedge" those? also dark markets and other tricks exist. Fin. eng. level goes way higher for them, just contact inv. banker or their lower class friends. They will find a way.
It cant be that simple, I am sure that they will find some way to make money before that
As you likely know, rules have recently been changed that basically force many 401k funds to invest in these IPOs while simultaneously having a relatively small number of the initial IPO to be sold to the public forcing the funds to by at inflated prices.
The bubble won't pop until these retirement accounts of have been raided.
What are the 401k rule changes? I am aware that indexes changed their rules
I'm pretty sure that's the change GP is referring to. But pension funds can choose to specifically exclude such companies. The Danish pension fund has already excluded SpaceX, which owns xAI. (This also probably relates to American threats of annexation of Danish territories, not just AI stuff.)
And as suspected, the Anthropic deal is not recurring revenue, its just a think they can cancel anytime with 90 days notice...Release the bad news slowly and when people are looking somewhere else...
SpaceX AI segment lost about $2.5B from operations in Q1 2026 on $818M revenue...they are burning dollars. Musk controls about 85% of voting power through supervoting shares, and cannot be fired...go IPO buyers...nothing like economic exposure without control....
What changed?
After years of companies refusing to go public (looking at you Stripe), it's almost refreshing to see a hyped tech go actually IPO.
Is it actually refreshing? It's actually refreshing to see Stripe staying private for so long. That means, they have a sustainable business model, and can take on projects that might benefit users in the long term despite negative short term consequences instead of focus on growing at all cost for the most part.
Stripe seems to be doing fairly well as a private company. They continually offer liquidity events for employees to cash out, while also retaining less pressure for hypergrowth from outside activists and investors.
This is the first time I've seen a Public, Confidential S-1 filing.
It's the contents of the submission that are confidential, not the fact that they are submitting.
The contents themselves contain a lot of detailed information about the internals of the company including financials, revenue, ownership details etc... those details are what's confidential until the SEC gives its approval, at which point the public can then review the document.
What this means it that it won't survive scrutiny, so better hide it so that there is only a small amount of time to do it.
Why do you think this? Confidential filings before an IPO are standard practice.
I suppose they announced it because the fact that they submitted it would leak anyway.
I like your sense of humor
That's how you know it's purely marketing and they're not actually going public.
excuse me. what am i being sold, in this so called marketing?
You? Nothing. Private investors? The dream of an IPO.
they closed series h, last thursday†. what are you on about?
† https://www.anthropic.com/news/series-h
Given how often these get leaked (see Palantir + SpaceX) and the cost of preparation, why would you ever file an S-1 unless you were serious?
Because you want another funding round but you will get it only if investors think they're going to get their money back soon.
I know market will buy it, but where would it find the money to fund the stock purchase?
Would it crash other company stocks so that investors start selling and purchasing Anthropic shares, or how does it work?
Where will it be listed? I am considering selling all my index ETFs in those markets until the this blows over.
Time in market > timing the market.
It's this sort of mentality and the prolitferation of passive investing that gives these companies the opportunity to pass the bag.
“Passive investing” is not the same as “buying anything at any price”. Index funds follow transparent rules and weights. If the company is overvalued, that overvaluation is set by the wider market, not just passive investors.
> If the company is overvalued, that overvaluation is set by the wider market, not just passive investors.
You probably also believe the markets are fully efficient and there is no insider trading ever.
Historically, it takes 6-12 months for the wider public market to determine the correct valuation.
That's why SpaceX, Anthropic, OpenAI are rushing to 15 days.
They know something bad will happen between 15 days and 6 months after IPO.
I've heard of the changes to the NASDAQ rules and I somewhat get how they make it so these stocks are included in index funds earlier than before. As far as I know, NYSE and others haven't done the same change so index funds there are "safe", i.e. will include the stocks only after a longer period, implying that it will have settled in value by then. Is that true at all? I'm sure the situation is much more complicated, but I do wonder how to figure out how much I'm affected.
There is a huge amount of misinformation on this topic, including in this thread, at the minute.
Some index funds have a very long horizon before they include them (e.g. a year). Others are "fast-tracked" (e.g. notably VTI). Most of those, however, are float-adjusted, so only the stock available for trade is considered part of the marketcap. So e.g. VTI / VTSAX will buy spacex relatively quickly after the IPO but at the float-adjusted weight of ~$75B because that's the % of stock available.
If you care alot about this, now is the time to understand how your index fund treats IPOs wrt to delays + float adjustment.
Do you have any suggested reading references?
Specifically, I do a typical 3FP and own VTSAX, but I don't read bogleheads or anything. True set-it-and-forget-it, but I do want to read more if things are shifting.
You should not trust me, but here's my understanding. I wish there was a really good writeup somewhere to explain this authoritatively but I'm not sure there is one. Would also love to see one. Frankly vanguard should do it.
VTSAX (and VTI) follow the CRSP index. This is float-adjusted but they likely will be fast tracked (these are two separate rules in how this index chooses to weight things and participate in new stocks). At ~5% float, these companies will be in the 50-100B range. So under all those assumptions, they'll be bought quickly but represent less than 1% of VTSAX (until they float more shares on the public market).
why did they raise 3 days ago? What's the benefit of doing this instead of going public right away? If it's just cash to pay for GPUs, can't they issue bonds or something?
You pretty much always do a late-stage private round shortly before an IPO, that is the standard. The goal of the late-stage funding round is to give a better idea of how much capital can be raised by the IPO. It helps reduce uncertainty about expectations of what the company is worth before going public.
Pump up the valuation baby.
Price setting.
IPO isn't really about "raising money for the company" any longer, unless one means raising the money in their wallets so they can take the money and run.
I'm curious to know if they generated this with Claude and what the prompt looked like.
Can someone help me understand how its "confidential" if they blog about it? Perhaps they simply mean the details of the S-1 are confidential for now?
The contents are confidential. They are just announcing they submitted it.
The S-1 itself isn't made public in a confidential filing.
Expect the token price to correlate with the stock price.
With SpaceX, OpenAI, and Anthropic, we're likely to see 3 of the largest IPOs ever (by a wide margin) this year. Will existing institutional investors trim other positions to allocate a lot of capital for these mega listings or is this not a concern?
Most likely. Funds generally don't have much unallocated cash, they operate fully invested, so three huge IPOs will force an asset rebalancing which can cause some liquidity drain from the rest of the market.
Plus as insider lockup periods expire, that's a ton of dollars pulled out of the market and into safer assets. It's going to be a huge net exit of capital.
I'd expect a lot of volatility and pretty heavy downward pressure across the rest of tech.
At least all the index funds are obligated to, right?
Based on current rules they wouldn't included in the S&P 500 for at least several years even based on optimistic scenarios.
Of course IIRC they looking into tweaking the rules to allow some handpicked extremely unprofitable companies in, due to "reasons"....
They are scared of underperfoming the market and failing to exist as an index. Losing money with everyone else is a more sustainable risk than losing money while other indexes go up.
Most index funds wait for at least a year before adding a new listing. The only exception that I'm aware of is QQQ and SpaceX.
Not true for Vanguard's total US stock market fund (VTSAX/VTI), the largest total US stock market fund in the world. Their CRSP index only requires 20 trading days post IPO, or 5 for large caps (this has been true for many years, this is not a recent change)
Technically they couldn't be added to the S&P 500 etc. until they become profitable.
If space x gets an exception, why wouldn't anthropic?
Maybe. If you read the fine print they are not. They have the goal of matching the index returns, but they never say anywhere they have exactly the stocks in the index.
Index funds all make active choices and often hold companies not in the original index. They are more passive than a traditional funds that buys and sells all the time, but they still make active choices. When an index changes stocks they can look up the price - but the funds mirroring the index need to make real trades that if not carefully done will change the value of the stocks (and cause the fund to under perform the index), so index funds have plans to prevent this. Compared to a traditional fund an index fund looks passive and there is much much less for the manager to do - but that doesn't mean the managers do nothing.
company must have a history of profitability before being included in the S&P 500
Index funds follow indices and often only rebalance quarterly
you and me will all be left holding a small cut of the bag
But only the amount the company floats for many index funds. So in the case of SpaceX, they are only floating 5% of the company. So the number of shares something like VTI has to buy is much smaller than the total market cap (5% of it).
Who’s going out of the gate first, Anthropic or Space X. Sequencing probably matters more than it should.
Did mythos write the S-1? It better not have been a human given the amount of hype they are pushing.
What does it mean to submit confidentially – what's the process there? I assume it be made public when approved by the SEC?
It means that Anthropic has submitted a document that it intends to share with the public in order to solicit public investment. This document includes details about its business, financials/revenue, ownership structure, risks, etc...
The document itself is what's confidential until the SEC approves it, at which point Anthropic will release that document to the public and IPO.
Got to dump this on everyone's SP 500 index fund before people figure out that there is a 95% drop in token usage when they are metered.
S&P 500 requires trailing 12 month profitability to be on the index. We won't see any of these on the S&P for at least a year or more.
The profitability requirements are potentially being dropped. Consultation just closed and may be implemented as soon as next week.
I thought S&P also changed the rules on this one
Only Nasdaq has changed their inclusion rules (at least for now).
They are metered. That's why their ARR went from $9B to $45B in 6 months.
Of course that fundraise was the last one: [0], everyone getting ready to dump their pre-IPO shares on to you as China catches up with their open models.
Better to do it now than to wait a day longer and the tokens are not getting any cheaper here.
Obviously OpenAI will file for IPO certainly this month, or even this week in response both SpaceX, and Anthropic.
Then AGI will then have been achieved externally.
[0] https://news.ycombinator.com/item?id=48313390
Time to short the market. We are at peak bubble.
"The stock market just did something eerily similar to the dot-com bubble top in 2000" - https://www.cnbc.com/2026/06/01/the-stock-market-just-did-so...
The market can remain irrational longer than you can remain solvent.
The amount of actual, hard cash revenue these companies are making is a different ballgame from the dot-com bubble.
Cisco was making loads of hard cash revenue during dotcom.
Shorting when there is a mania is way, way too risky
> Time to short the market. We are at peak bubble.
I've seen this comment on HN at least 5 times already.
This is actually the pin everyone was looking for that will pop this AI bubble, including the token cost falling in China and the release of open models that are good and run locally.
It could be, but the market could bounce right back. And if it does, it's hard to know who will emerge stronger. Anthropic could end up like Amazon, or it could end up like Yahoo.
Where are these open models that are as good as GPT and Claude and run locally?
Every post anthropic generates feels like misdirection and bad summarization using AI. There is no sense of who the audience for this post is for and includes a lot of redundant information.
Can't see the relevance of this comment to the post. You can do a Google search for "confidentially submits draft S-1 to the SEC" to see other examples of companies announcing these submissions and they're all written in the same way.
It's just a standard/template that most companies reuse.
https://www.figma.com/blog/s1-confidential-submission
https://www.prnewswire.com/news-releases/gemini-announces-co...
https://investors.navan.com/news-releases/news-release-detai...
https://www.round1-group.co.jp/docs/pdf/2026/20260507_news_e...
> This announcement is being published under Rule 135 of the Securities Act of 1933
It's a required public disclosure following a format traditionally used in mandatory public disclosures.
Is there any real reason to have generated announcements anyway? You could get more polished text with some copy editors and I can't imagine cost is really a big concern for it.
It is possible that they are dogfooding
It's a legal notice, what are you talking about?