Big winners of today's rally are heavily involved in data centers, says Jim Cramer

Whenever the market gets clobbered and then starts crawling back, you always hold out hope that there'll be a broad advance. Lots of different groups powering higher, easily accessible to the masses that might have been blown out by the just endured decline. As we pound our way through our second day of this rally, I can definitively say that well, this is not one of those moves.This one is limited. It's small. It lacks any real leadership that you can hang your hat on.At least a so far. It's worth filling ...