Quote from illiquid:
That seems pretty normal.
Let's assume your first case is a long position; whatever factors that are getting you to sell out "early" (in retrospect) are the same factors that are luring others into selling/shorting the move. This will amplify the trend higher as they collectively discover they are wrong.
The second case is just the inverse; the conditions all look and feel like a possible home-run, not just to you, but to everyone else taking the same position. So the vulnerability of price is in the move opposite to what all the "semi-pros" feel, that is par for the course.
Very insightful post.
