The stock market isn't what you think it is. Most of us grew up believing the market was a giant weighing machine—a place where smart people analyzed companies, and if a business did well, its stock price went up. If it did poorly, the price fell. It was a logical system of capital allocation.
But according to David Einhorn, the founder of Greenlight Capital (now DME Capital), that version of the market is dead. It's not just "expensive" or "volatile." It is fundamentally broken.
If you've ever looked at a company that is printing cash, beating earnings, and buying back shares, only to see its stock price sit there like a dead weight while a money-losing tech startup triples in value, you've seen the "broken" market in action. Einhorn argues that the mechanism that used to fix these discrepancies—value discovery—has been dismantled.
The Death of the Convergers
For decades, the market was dominated by "convergers." These were active, long-only mutual fund managers and hedge funds. They’d spend months digging through 10-Ks, talking to suppliers, and modeling cash flows. When they found a stock trading for less than it was worth, they bought it. Their buying pressure eventually forced the price to "converge" with the company's actual value.
Today, those people are mostly gone.
Passive index funds, algorithmic traders, and "market-neutral" shops like Citadel and Millennium have replaced them. These new titans of Wall Street don't care what a company is worth. They care about two things:
- Flows: Is money coming into the S&P 500 index? If yes, buy everything in the index, regardless of price.
- Price Action: What is the stock going to do in the next three minutes?
When the dominant players in a market have no opinion on value, price discovery stops happening. As Einhorn puts it, the market has shifted from a place that allocates capital to a place that provides entertainment and short-term scorekeeping.
The Passive Indexing Trap
The rise of passive investing is the biggest culprit in this story. On the surface, it's great for the average person—low fees, broad exposure, and steady returns. But at a systemic level, it’s a disaster for market efficiency.
When you buy an S&P 500 index fund, your money goes toward the 500 biggest companies, not the 500 best values. This creates a self-reinforcing loop. The more money that flows into passive funds, the more they have to buy the "Magnificent Seven" and other top-tier index components. This pushes their prices higher, which makes them a larger part of the index, which forces the next dollar of passive money to buy even more of them.
Meanwhile, the "un-indexed" companies—smaller firms or those in unsexy industries like chemicals or coal—get ignored. They could be growing at 20% a year and trading at 5 times earnings, but if there's no active manager left to buy them, the price won't move. There is no "weight" being added to the scale.
How the Rules of Value Investing Have Changed
You might think that a broken, inefficient market would be a paradise for value investors. If things are "ridiculously cheap," shouldn't you just buy them and wait?
Einhorn tried that. From about 2015 to 2018, it nearly put him out of business. He’d buy stocks at a discount, the companies would perform well, and... nothing happened. The "convergers" who used to follow him into these trades had been fired or moved their money into ETFs.
He realized that you can no longer count on other investors to "re-rate" a stock for you. In a broken market, being right isn't enough. You have to get paid even if the market remains irrational forever.
The New Playbook
Einhorn's pivot is one of the most significant shifts in hedge fund strategy in the last decade. He stopped looking for "cheap" and started looking for "bankable." Here is what that looks like in practice:
- Valuation floor: He isn't buying at 10x or 12x earnings anymore. He’s looking for 4x or 5x.
- The "Company as the Buyer": Since other investors won't buy the stock, the company has to do it. He looks for firms with massive share buybacks or high dividends.
- Cash flow yield: He wants companies where the "yield"—if you owned the whole thing—would be 15% to 20% in cold, hard cash.
Basically, he’s stopped waiting for a "greater fool" to buy his stocks at a higher price. He’s now investing in a way that allows the company's own cash flow to provide the return. If the market never notices the stock is undervalued, the company will eventually buy back so many shares that the remaining ones become incredibly valuable by default.
Real Examples of the "Broken" Market
Einhorn’s current portfolio is a roadmap of what he thinks is being ignored by the "machine money."
Take Green Brick Partners (GRBK). It’s a homebuilder that makes up a massive chunk of his portfolio. While the rest of the market was obsessed with AI chips, Einhorn was betting on the structural shortage of American housing. Even when interest rates spiked, the company kept performing. Because he owns such a large stake and the company is disciplined with its capital, he doesn't need a viral Reddit thread to make money on it.
Another example is Consol Energy (CEIX). A few years ago, coal was the most hated industry on the planet. The stock was trading at roughly 2 times earnings. Einhorn didn't buy it because he thought coal would become "cool" again; he bought it because the company was generating so much cash it could buy back its entire market cap in a few years. When the company switched its policy to emphasize those buybacks, the shares finally took off.
The Fartcoin Stage
In his 2024 and 2025 letters, Einhorn has become increasingly blunt about the "casino" nature of the current market. He’s noted that we’ve reached the "Fartcoin" stage of the cycle—a reference to meme coins and speculative assets that have zero underlying value but attract billions in liquidity.
When you have Bitcoin-adjacent stocks like MicroStrategy (MSTR) trading at massive premiums to the actual Bitcoin they hold, you aren't looking at a "market" in the traditional sense. You're looking at a momentum-driven speculative frenzy.
Is There a Way to Fix It?
Probably not anytime soon. The move to passive is a one-way street for most retail investors. It’s too easy and too cheap to give up.
However, this creates a permanent "bifurcation" in the market. On one side, you have the "Index Heavies"—stocks like Apple, Microsoft, and Nvidia that are perpetually propped up by passive flows. On the other side, you have the "Orphans"—hundreds of solid, profitable companies that the indexes don't care about.
If you're an individual investor, this is actually good news, provided you have the stomach for it. It means you can find "compelling values" that shouldn't exist in a rational world. But you have to follow Einhorn's rule: Don't buy a stock just because it's cheap. Buy it because the company is going to pay you to own it.
Your Next Steps
- Check your exposure: If your entire portfolio is in an S&P 500 fund, you are effectively betting that the "passive flow" loop will never break. Consider if you want some "orphan" value to balance that out.
- Look for buybacks, not just P/E: A low Price-to-Earnings ratio is a trap if the company is just sitting on the cash. Look for companies that are aggressively shrinking their share count.
- Ignore the "noise": If you buy an undervalued company and the price doesn't move for six months despite good earnings, don't panic. In a broken market, the "convergence" takes a lot longer than it used to.
Stop thinking about the market as a place where the "correct" price is always found. Start thinking of it as a messy, flow-driven system where value is only realized when a company forces the issue with its own balance sheet. If you can make that mental shift, you're already ahead of most of Wall Street.
