People like to say that markets are efficient. That hides the crowd.
A stock goes into earnings. The company reports a good quarter. Revenue beats. Margins are solid. Cash flow is good. Then management lowers guidance a little, and the stock drops 15%. Did the business become 15% worse in an hour? No. The market was asking a different question: was this better than expected, and how will everyone else react?
That second question is where all the action is. Keynes called investing a beauty contest. You’re not choosing the face you find prettiest. You’re choosing the face that other people will think other people will choose. Public markets work the same way. You’re not just pricing the company. You’re pricing the crowd around the company.
A falling stock scares holders. The scared holders sell. Then levered holders have to sell. Then risk managers step in. Then momentum traders leave. Then analysts cut targets after the fact. The first move creates the reason for the second move. The same loop works in reverse. A rising stock gets attention. Attention brings buyers. The buyers validate the story. Then more buyers show up because the story now looks validated. At some point, people stop asking what the business is worth and start asking how high the stock can go.
A valuation model can tell you what a business might be worth if people behave rationally and patiently enough. A risk model can tell you how the stock behaved when the last crowd owned it. But neither one can hold sentiment constant. Neither one can hold leverage constant. Neither one can hold fear constant. Those are the variables that matter most during the move.
Liquidity depends on them too. People talk about liquidity as if it’s a permanent feature of the market. It isn’t. Liquidity is there when other people are willing to take the other side. When everyone wants out together, liquidity vanishes.
Fundamentals matter, but eventually can be a very long time in markets. Before fundamentals win, the crowd gets its turn. If you want to understand a stock, don’t just study the business. Study the holders. Study how crowded the trade is. Study who is levered. Study what would force people to sell. That’s usually where the real risk is.