S&P 500 Today: Index Slides to 6,721 as AI Funding Jitters Hit Tech, Oil Pops on Venezuela Blockade (Updated 4:40 PM ET)
Update (4:40 PM ET, Dec. 17, 2025): The S&P 500 ended Wednesday’s session sharply lower, extending a multi-day slide as investors reassessed the economics of the AI boom and its financing needs—while an oil rally offered only limited ballast. S&P 500 closes near the day’s low after a tech-led selloff The S&P 500 fell 78.83 points (‑1.16%) to close at 6,721.43, marking the index’s fourth straight daily decline and pushing the benchmark and Nasdaq to their lowest levels in about three weeks. Reuters+1 Trading action underscored the risk-off tone: the S&P 500 opened around 6,802.88, traded as high as roughly 6,812, and sank to about 6,720—finishing close to the bottom of