Stock market today: Dow, S&P 500 slide from records as rally loses steam amid growing risks

Group 1: Market Overview - US stocks ended mixed with the Nasdaq Composite rising about 0.2%, while the S&P 500 declined 0.3% and the Dow Jones Industrial Average fell almost 1%, or over 450 points [1] - Wall Street is facing a growing set of risks, particularly related to developments in Venezuela, which have been largely overlooked during recent stock rallies [2] Group 2: Oil Market Impact - President Trump announced that Venezuela will send up to 50 million barrels of crude oil to the US, valued at $2.8 billion, with plans for the US administration to control Venezuela's oil sales indefinitely [2] Group 3: Defense Sector Reaction - Shares of defense contractors General Dynamics, Lockheed Martin, and Northrop Grumman fell after President Trump stated that these companies would not be allowed to buy back shares or issue dividends until they increased production and maintained equipment at a faster pace [3] Group 4: Labor Market Data - ADP's December update indicated that 41,000 jobs were added in December, slightly missing expectations, while the JOLTS report showed a decline in job openings and a slowdown in hiring pace [4] - The upcoming December jobs report is viewed as a critical test for the economy, influencing potential Federal Reserve policy changes [5] Group 5: Technology Sector Insights - The CES 2026 show is generating discussions around tech leaders' promises, particularly regarding Nvidia, with analysts divided on whether the AI chipmaker is nearing a bubble or entering a new growth phase [6]