March Madness is being felt across the market as traders called brokers for score updates and desks erupted into cheers as their respective teams pulled out a win, or choked. For those without TVs, the ESPN Web site offered no solace as it was so clogged during the first day of tournament play some couldn't even open the browser to check scores. Experts have estimated that U.S. companies may loose between $900 million to almost $4 billion in wages and productivity during the tournament.