The SPDR S&P 500 ETF Trust (SPY) declined on July 17, 2026. A technology sector sell-off pressured the broader market throughout the trading session. Investors cited high valuations in artificial intelligence stocks as a primary concern.
Escalating geopolitical tensions between the U.S. and Iran further rattled investor confidence. Markets reacted by rotating capital into defensive sectors like healthcare and consumer staples.
Mixed corporate earnings reports contributed to the negative market sentiment. Netflix weighed on the index following a disappointing financial forecast.