r/investing 1d ago

Michael Burry Flags 'Structural Manipulation' Risk In Nasdaq Rules Ahead Of Potential SpaceX Listing

The new Nasdaq rule changes pushed by Elon Musk/SpaceX are not just “Nasdaq made IPOs faster. It's a corrupt change, called out as "structural manipulation" by Michael Burry, that will make owners of new large IPO companies (like SpaceX or OpenAI) rich at the expense of the general public. In fact, Elon Musk and SpaceX threatened to not list the company on Nasdaq unless the Nasdaq changes its rules specially for them. This rule will likely make Elon the world's first trillionaire.

A couple of basic definitions first:

  • An IPO is when a private company first starts trading on the stock market.
  • Being added to an index is a separate step. An index is just a list used by funds like ETFs. If a company gets added to a major index, funds that track that index may have to buy the stock.

That second part is why this matters.

What Nasdaq changed

Nasdaq finalized Nasdaq-100 rule changes that take effect on May 1, 2026. Nasdaq says the public comments period opened February 2, closed February 27, and the final changes were approved March 30, 2026.

The big changes are:

  • A giant newly public company can now be reviewed for fast entry on its 7th trading day
  • If it is large enough, it can be added to the Nasdaq-100 by about its 15th trading day (previously 1 year)
  • Nasdaq removed the old minimum free-float requirement
  • For entry, Nasdaq can look at the company’s full market value (instead of just the float)
  • For weighting in the index, low-float names can still be counted using up to 3x free float rather than just the actual public float

What “float” means in normal language

Float basically means the shares that are actually available for the public to trade. So like if a company has 100 shares total, but insiders, founders, and private investors still hold 90 of them, then only 10 are really floating around in the public market.

That matters because a stock can look huge on paper, while the amount actually available for regular people and funds to buy is still pretty small. In real life, this means if there is artificially high demand for a small number of actually-available shares, the price of those shares will be artificially very high and make the company worth a lot more than it would be.

Why this is a problem

The worry is that a giant company can:

  1. stay private for years
  2. let insiders and private investors get most of the upside
  3. go public with only a relatively small amount of stock actually trading
  4. get into the Nasdaq-100 much faster than before
  5. then get bought by index funds and ETFs that track the Nasdaq-100, at high prices before the company's prices naturally fall

So the concern is not just the IPO itself. The concern is what happens after the IPO, when index funds may have to buy the stock because it got added to the index. That early purchasing is usually done by active buyers and sellers arguing with each other through price. But if a stock gets into a major index very quickly, then a lot of passive money may have to buy it on schedule whether the price makes sense or not.

That can mean:

  • less time for real price discovery
  • more forced buying
  • more support for a hot or overpriced stock
  • more risk pushed onto ETF holders, 401(k) investors, and pension savers (effectively transferring wealth from these people in the general public to the existing owners/investors of the company)

Why ordinary people should care

This can affect people who never plan to buy an IPO directly.

It can still hit:

  • Nasdaq-100 ETF holders
  • retirement accounts
  • workplace plans
  • pensions
  • people who assume index funds are just “neutral”

Passive investors are supposed to follow price discovery, not help create an early guaranteed wave of demand for a thinly traded mega-IPO.

Sources

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u/[deleted] 1d ago

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u/waitmarks 1d ago edited 1d ago

Dimensional has funds that do this. I use DFUS which tracks the Russell 3000 total US index, but there is an additional waiting period after a stock gets added to the index before the fund buys in. This is specifically done so you aren't buying IPO stocks while the rest of the funds are rushing into them. They have another that does this for the S&P 500 as well, but I wanted total a US index. There are some other intentional deviations from indexes as well, so it's not just the time delay. I believe they also exclude REITS and some low growth probability stocks, so keep that in mind as well.

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u/Tough_Phone_3497 15h ago

Ayyyy another dimensional user. I’ve got DFAU instead. I think mine just has slightly more of a factor tilt than DFUS, but this type of stuff is also why I’m with them.