Stock market today: Dow, S&P 500, Nasdaq futures waver after rally as Iran war drags on

Market Overview - US stock futures experienced a slight decline of 0.1% after a significant rebound driven by optimism regarding easing tensions between the US and Iran [1] - Oil prices initially retreated but then rebounded, with West Texas Intermediate crude rising 2% to above $90 per barrel and Brent crude jumping back above $101 [2] Company News - Smithfield Foods' stock increased by 4% after the board raised its quarterly dividend by 25%, from 25 cents to 31.25 cents [5] - Gilead Sciences' stock edged higher following its agreement to acquire the privately held biotech company Ouro Medicines [5] - Jefferies Financial Group's stock rose 9% after reports that Japan's Sumitomo Mitsui Financial Group is exploring a potential takeover [6] - Puig's stock jumped 8% after Estée Lauder confirmed plans to acquire the Spanish beauty group [8]