Are there any day trading funds out there or is it all overnight? Seems once you go form "trader" to Hesge Fund you go from tradig to running a business? I winder if there is actually more money by doing this?
SAC trades alot but they are so big now that most of their positions are longer term. Doesn't stop them from trading actively around many positions though. Steve day trades the eminis quite actively still.
I think they use high-frequency data to generate their signals. I've also heard they hold positions for 10-20 minutes, if justified.