UnitedHealth has gone from bad to worse, and its drop is impacting the Dow Jones Industrial Average even more than it is the S&P 500.

Stock futures fell and Treasury yields soared on Monday as investors responded to news that a major ratings agency had downgraded its assessment of U.S. federal government debt.

U.S. stocks settled mostly higher on Monday, with the Dow Jones index gaining more than 100 points during the session. Major indices recorded gains last week. For the week, the S&P 500 gained 5.3%, while the Dow added 3.4%. The Nasdaq Composite was the standout performer, surging 7.2% last week.

Dow Jones outperforms with help from health stocks; S&P500 and Nasdaq rally while Nvidia earnings loom next week.

The Dow Jones Industrial Average reversed its earlier losses Monday afternoon, as investors continued to digest the potential impact of Moody's downgrade of the U.S. sovereign rating from triple-A. The Dow was down 317 points to as low as 42,

Despite a general easing in the weighted index, key goods continue to rise, and tariff impacts loom ahead.

Stocks closed higher Monday as the U.S. and China moved to de-escalate their trade war, with investors eager for signs of a lasting agreement.

Much to the surprise of many on Wall Street, the S&P 500 has managed to erase all of its losses from earlier in the year, and the Dow Jones Industrial Average isn’t far behind.

The broad market index ended Wednesday’s trading modestly higher, as traders extended the tariff relief rally for a third day.

US stocks managed to eke out gains on Monday as bond yields eased off bigger gains and Wall Street largely shrugged off Moody's downgrade of the US credit rating. Meanwhile, investors digested developments in President Trump's tariff salvos.