Stock market today: Dow, S&P 500, Nasdaq futures mixed as chip stocks slide after TSMC earnings

US stocks were mixed as investors balanced strong earnings against a sharp selloff in semiconductor shares and rising geopolitical risk from the US-Iran conflict. Futures pointed to a modestly higher Dow, slightly lower S&P 500, and a weaker Nasdaq-100, with chip stocks under pressure for a second day after TSMC’s record Q2 revenue and raised capex/revenue outlook failed to reassure markets amid valuation concerns. The article also notes that TSMC shares fell in premarket trading after warning of higher prices, even as it highlighted robust AI-chip demand and announced an additional $100 billion Arizona investment. Broader market direction remains constrained by a rotation between mega-cap tech and semiconductors, while upcoming retail sales and jobless claims data could influence sentiment. Oil markets are also in focus as conflict in the Middle East escalates.