Crowds do not move randomly. A big move has a shape, and the mood behind it runs a circle, and once you have seen both you start recognizing where you are standing.

The shape has five stages. It starts at the bottom, the part nobody wants, when the company is a punchline. The first pullback scares off the early buyers and prints a higher low almost no one trusts. The middle is the body of the move, the stretch where it reaches the headlines and the masses pile in. Then a shallow pause. And finally the vertical, news-making, it-can-only-go-higher finish, the euphoric chase.

The mood travels the same circle. Bottoms build in pessimism. Rallies climb a wall of skepticism. Tops form in optimism. The final blow-off runs on euphoria.

I lived both ends of that circle barely a year apart. In the tariff panic of spring 2025 the Fear and Greed Index, a number anyone can pull up for free, printed 3 out of 100, portfolios were down a quarter, and almost nobody in my world was asking whether to buy. That silence was the signal. Thirteen months later, at new highs with the same accounts at records, the question flipped to which dip to buy. That was not a dip. That was euphoria.

The move feels most obvious right when it is most finished.

You cannot time the exact date, and extremes can last far longer than feels reasonable. What you can read is the neighbourhood you are standing in. When the crowd starts calling every drop a dip and the chart goes parabolic, you are late, not early.

Crowd psychology gives major moves a recurring anatomy and a recurring mood. The five-wave shape and the sentiment circle are two views of the same thing: how a crowd discovers, doubts, embraces, and finally chases a move.

The labels are clearest in hindsight, so the count and the cycle are not prediction engines. Their value is the discipline they enforce: buy where it is lonely and pessimistic, get cautious where it is crowded and euphoric, and never start a new position inside a parabola.

You are not trying to call the top. You are trying to know which part of the circle you are standing in, and to size and act accordingly.

Sentiment is the crowd's mood, how greedy or scared investors feel right now, regardless of value. A sentiment index like the CNN Fear and Greed Index turns that mood into one number from 0 (extreme fear) to 100 (extreme greed).

Parabolic means a chart bending almost straight up, gains accelerating week over week, which usually signals euphoria, the late stage where buyers chase out of fear of missing out. An all-time high is a price above any before it; a dip is a temporary fall.

The five waves are a simple map of a big move: the unloved bottom, the doubted first pullback, the crowded middle, a shallow pause, and the euphoric vertical finish.