U.S. stocks closed lower on Monday, with significant declines in major indices. The Dow Jones Industrial Average fell 1.2% to 46,590.24, the S&P 500 dropped 0.92% to 6,672.41, and the Nasdaq Composite decreased 0.84% to 22,708.07. NVIDIA shares declined 1.88% to $186.60 ahead of its upcoming earnings report. Dell experienced a sharp drop of 8.42% to $122.48 following a downgrade by Morgan Stanley. Coinbase shares fell 7.06% to $263.95, reflecting a broader weakness in the cryptocurrency market, with Bitcoin trading below $92,000 and Ethereum below $3,000.