The S&P 500 and Nasdaq ended their four-week losing streaks.

• S&P 500, Nasdaq, and Dow all rose 2%+ last week, ending four-week losing streaks • Nvidia's Jensen Huang resigned, triggering a stock selloff and leadership uncertainty • Focus shifts to Anthropic's IPO and hawkish Fed commentary ahead of December US stocks had a volatile but positive week: the S&P 500 rose 2.51%, Nasdaq 2.27%, and Dow 2.07%, ending four-week losing streaks, though sentiment stayed pressured by inflation data, Fed rate-hike expectations, and turmoil at Nvidia. Monday saw a strong rebound as falling oil prices eased inflation fears after Trump downplayed new strikes on Iran. Tuesday reversed on hotter-than-expected October inflation and hawkish comments from Fed's Waller and Dallas Fed's Logan; Nvidia fell another 5.5%, briefly losing its spot as the world's second most valuable company to Microsoft. Wednesday rallied on CoreWeave's strong Q3 earnings and raised revenue guidance ($13-13.3B), lifting AI stocks and Nvidia (+3%). Thursday reversed again after Nvidia announced CEO Jensen Huang's resignation; Nvidia shares swung from -13% to close -4.3%, while Broadcom and AMD both rose over 5% as investors rotated. Friday closed lower (S&P 500 -0.40% to 7,561.67; Nasdaq -0.91% to 25,136.27; Dow +0.10% to 52,347.55) as Nvidia fell again, marking its sixth straight weekly decline — the longest since 2012 — amid reports its board approached Arm's Rene Haas as a possible successor to Huang. October PPI rose 6.5% year-on-year, the strongest since November 2022, reinforcing expectations of a December rate hike, with Fed's Daly and Collins striking hawkish tones Friday. Markets now look to Anthropic's IPO next week, which aims to raise up to $64 billion with projected Q3 revenue of $17 billion, as a test of investor appetite for AI bets beyond incumbents like Nvidia.