> The biggest mistake new investors make is sell when they see a red negative number. On the other hand, often used reason for bad trading performance is stick

> The biggest mistake new investors make is sell when they see a red negative number. On the other hand, often used reason for bad trading performance is sticking to the losers and not riding the winners. So who is right? Or you think this trading maxim does not apply to the "investing" that you refer to?