US stock futures jumped on Thursday after the Federal Reserve returned to easing interest rates and signaled further cuts are coming, while a Nvidia (NVDA) lifeline for Intel (INTC) boosted spirits. Dow Jones Industrial Average futures (YM=F) rose 0.7%, while those on the S&P 500 (ES=F) moved 0.8% higher. Contracts on the tech-heavy Nasdaq 100 (NQ=F) led with a 1.2% gain, taking another leg up as Nvidia (NVDA) said it plans to take a multibillion-dollar stake in Intel (INTC). Shares in Intel surged almos ...