 The AI craze has fueled stocks to a blockbuster first half of the year with the S&P 500 climbing 14%. So far, NVIDIA has contributed 30% of the S&P 500's total return this year through Wednesday. The Dow down 45 points, the Nasdaq lower by 126, S&P 500 down 22. That's your Fox Business Report. I'm Hillary Barsky, invested in you.