Momentum Trading
Definition
Momentum trading is an approach that identifies stocks moving strongly in one direction — usually driven by a catalyst, high relative volume, and expanding price range — and enters in that direction, riding the move for as long as momentum sustains rather than predicting reversals.
Example
“The stock gapped up 15% on a buyout rumor, opened above pre-market highs, and had 5x normal volume in the first minute. That's a momentum trade — you don't argue with it, you get on board and ride it until the volume dries up or it breaks a key level.”
Detailed Explanation
Momentum trading is the polar opposite of value investing — you're buying because something is already going up fast, not because it's cheap. The logic is behavioral: when a stock moves sharply on high volume, it attracts attention from other traders who want to participate, which brings more buyers, which pushes price higher. Momentum feeds itself, at least for a while. The catalyst matters — a genuine, significant news driver (earnings beat, acquisition news, FDA approval, short squeeze) tends to sustain momentum longer than a stock moving simply because it's on a scanner. Volume confirms that real money is moving, not just algorithmic noise.
The setup structure for a momentum trade typically involves: (1) a catalyst with genuine significance, (2) relative volume well above normal (5x+), (3) price trading above VWAP and holding it on pullbacks, (4) a clean technical level (prior day high, pre-market high, HOD) that, when broken, triggers the next leg. The entry is on confirmation of the break, not in anticipation — chasing pre-breakout is how you get caught holding when the move fails. The stop is just below the level that broke, keeping the initial risk tight while the reward potential is open-ended if the stock keeps running.
Momentum trading demands strict rules about when to exit because momentum is temporary by definition — every move eventually exhausts. The classic signals of fading momentum: volume contracting at the highs while price makes smaller and smaller new highs (distribution), price failing to break the last swing high after a pullback (trend exhaustion), or a sharp high-volume reversal candle at an extended level. Many momentum traders use a trailing stop as the primary exit mechanism — locking in gains as the stock moves, so if it reverses sharply they're stopped out with profit rather than giving back the whole move while waiting for a target.