Many people think that English book titles are undervalued—they should go up—so they keep averaging down. The result is that the market maker can’t gather enough chips, so they can’t push the price higher. The cheaper it gets, the more everyone thinks it’s better value, and the more they buy. After some time, the market maker may end up giving up on the play, and this trading target slowly gets ruined. Retail investors need to have the mindset of retail investors—just buy a little; that’s enough. If you buy too much, then the pot is yours…。