Hi, I've been a full time investor for a few years. Before that I was a high stakes poker player. With the recent volatility I've decided to put some of the trends I've noticed to the test and try my hand at day trading. I've read books by authors who claim to have been trading full time for 20 years or more. So if trading can be consistently profitable like poker (I had a streak of 32 straight winning months) why haven't I heard of more billionaire day traders? It leads me to believe that maybe trends change too quickly for anyone to keep up. Another question for trading veterans. Roughly what % of the markets moves happen intraday? Everyone knows the market tends to go up say 8% annually but is most/all of this movement on the open? If the market does appreciately intraday generally, this alone may be enough reason to day trade since intraday margin is free.