Do you sell because of the rise/deep in the market, or do you sell because you actually needed the money and not because of the deep/rise of the price, or you're the type that just jumps in pick some profits and jump out?
I am a long term holder of altcoins. I sell my tokens (both alts and bitcoin) when I am broke, and when I need some money. I don't sell because there is a deep in the market, I sell because I need to. So, what about you?
There are many reasons why we need to sell our coins, one is when we are in need most of the money although the price is low we will sell our coins because we are in need of that money and the other reason I guess when we notice the price is going to dump and nobody will support the project anymore that is the situation when most of the holder sold their coins. This is only my opinion.