The Dow closed up 556.21 points at 52,177.69 on October 15, according to Yahoo Finance, as health care, materials and financials led the S&P 500 to a 0.3% gain. The next day looked different. The Nasdaq fell 2.14% and the S&P 500 lost 1.09% on October 16 as investors questioned whether AI revenue can justify heavy spending and the debt funding it.
Sectors diverged. Health care rose 1.8% and financials 1.4% on October 15, per Yahoo Finance. On October 16, the S&P technology sector fell more...
