Today’s Market Recap: AI Chip Stocks Gain, SanDisk Surges Nearly 11%, Micron Rises Nearly 4%, Bitcoin Reclaims $80,000

TradingKey - On September 18, Eastern Time, U.S. stocks capped off a volatile week with the three major benchmarks closing mixed. Tech and semiconductor stocks extended their rebound, lifting the S&P 500 and Nasdaq slightly higher. However, the 10-year U.S. Treasury yield climbed back near 5%, which, coupled with international oil prices remaining above $100, capped overall market risk appetite. For the week, the S&P 500 slipped about 0.1%, the Dow dropped 1.7%, while the Nasdaq gained about 0.7%.

At the close, the Dow Jones Industrial Average fell 0.18% to 51,688.16; the S&P 500 Index rose 0.17% to 7,650.50; and the Nasdaq Composite Index gained 0.39% to 26,522.55.

In terms of sectors and individual stocks, semiconductor shares continued to recover. Nvidia (NVDA) rose 1.34%, SanDisk (SNDK) surged 10.99%, and Micron (MU) gained 3.92%; the Philadelphia Semiconductor Index advanced about 2.78%, rising for the fourth consecutive trading day. The chip sector, which had adjusted sharply earlier due to AI safety discussions, regained capital inflows in the second half of the week, with AI data center, memory chip, and semiconductor equipment stocks showing relative strength.