Selloff Shakes S&P 500: What Changes Next

The S&P 500’s recent pullback has been driven by a concentrated slide in AI- and chip-related leaders. On July 17, the index fell 0.86% as chip weakness spread through the market and the broader AI complex lost momentum, according to Reuters. Mega-cap platforms also weighed on sentiment, with Meta and Alphabet moving lower as investors recalibrated near-term expectations for AI spending and demanded clearer payoff timelines. The broader takeaway is that leadership has been narrow for months, so synchronized declines can quickly become market-wide headlines. The SOX also flashed stress in late July, including a 4.49% drop on the 28th Nasdaq session.