U.S. stock indexes decline as technology and storage shares fall

U.S. equity markets experienced significant declines, led by a 2.36% drop in the Nasdaq Composite. The S&P 500 fell 1.19%, while the Dow Jones Industrial Average decreased by 0.58%. Losses were particularly concentrated in large technology companies, optical equipment, and data storage sectors. Notable declines included Alphabet, Oracle, Tesla, and several storage-related stocks such as Western Digital and Seagate.

This market movement highlights a growing divergence between index leaders and the broader market. The S&P 500’s equal-weight index has trailed its market-cap-weighted counterpart by approximately 6% over the last six months, as a small group of large technology firms has disproportionately supported the standard index.

Tightening financial conditions, driven by rising Treasury yields, a stronger dollar, and increased oil prices, have placed pressure on ordinary stocks. The equity risk premium for the S&P 500 has slipped below zero, making stocks appear less attractive relative to Treasury bonds in terms of valuation.