 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. They dialed down 45 points. The Nasdaq lowered by 126. S&P 500 down 22. That's your Fox Business Report. I'm Katharine Barsky, invested in you.