Monday - Friday, 6:00 - 7:00 PM ET Investors should stop fixating on how much a stock has already run and instead focus on how much upside may still remain, CNBC's Jim Cramer said Wednesday. "You can't worry about where a stock's been, just focus on where it's going," the " Mad Money " host said. "That's becoming my watchword for this explosive market." His comments come as many of the market's biggest winners — particularly artificial intelligence and data center stocks — continue to rally