I try to buy low, then sit on the mutual funds for a while.
Only dopes try to play the market in real time. If brokers and "stock wizards" knew what they were doing, they'd all be billionaires instead of trying to sell books on how to do it.
I still don't know who does all the buying and selling every time somebody cuts a wet fart somewhere, but it's not the way to play the game if you want long-term results.