NEW YORK — The Dow Jones Industrial Average closed at 49,598, down 0.6 percent after dropping more than 300 points in the final hour of trading. This marked a sharp reversal from earlier session highs. The broader S&P 500 also finished lower at 7,337, a 0.4 percent decline, while the Nasdaq Composite recorded a modest 0.1 percent drop to 25,806.

Selling pressure extended across market segments. The small-cap Russell 2000 index fell 1.6 percent to 2,839, indicating caution beyond just large-capitalization stocks. The abrupt unwinding of positions in the final 60 minutes points to a lack of sustained buying interest at elevated levels.

The market's turn came despite strong individual performances within the technology sector. Tesla shares rose 3.3 percent to $411.79, extending its recent rally on optimism surrounding its AI initiatives and production outlook. Microsoft gained 1.7 percent, closing at $420.77, and Nvidia saw a 1.8 percent increase to $211.50, reflecting continued demand for AI infrastructure and specialized chips.

Other major tech and consumer discretionary names faced selling pressure. Amazon shares fell 1.4 percent to $271.24, indicating selective profit-taking in the e-commerce giant. Apple traded flat at $287.44, and Alphabet also remained unchanged at $397.94. This divergence indicates that while AI-driven growth narratives continue to support certain names, broader market concerns about the economic trajectory are influencing other segments, particularly those tied to consumer spending.

The late-day sell-off reflects a clear shift in investor sentiment. This action suggests market participants are quick to lock in profits, especially after a period of gains. Investors are scrutinizing upcoming economic data for clearer signals on inflation and interest rate policy. The Federal Reserve, under Chair Jerome Powell, has maintained a data-dependent stance, and any hawkish signals often prompt immediate market re-pricing.