The Popular Myth:
Every fund manager, every glossy brochure, every top picks newsletter leans on the same comforting lie: strong past returns mean strong future returns. You've heard it a thousand times. This stock crushed it last year. It's a proven winner. Buy the dip and ride the momentum. It feels logical. It feels safe. And in a volatile market, it feels like the only anchor you have when the news cycle is blowing up your positions. (2/9)

Where This Myth Leads to Disaster: (3/9)

Here's what actually happens. A conservative position trader sees a stock that's rallied 40% over the past year. Earnings were solid. The chart looks beautiful. Then a geopolitical shock hits, or a Fed announcement flips sentiment overnight, and that proven winner drops 15% in a week. The trader holds, convinced the past performance will reassert itself. It doesn't. The stock keeps bleeding because the conditions that drove those past returns no longer exist (4/9)

. The news event changed the game entirely, and the trader is now sitting on a position built on a thesis that expired months ago. They're not managing risk. They're managing nostalgia. (5/9)