US stocks mixed as oil gains, chip losses weigh; Dow up 0.38%

US equities closed mixed on October 12, with the Dow up 0.38% while the S&P 500 and Nasdaq retreated, pressured by higher oil prices and losses in chip stocks. European shares finished higher, suggesting divergent regional sentiment. The mixed close reflects ongoing inflation concerns from energy costs and sector-specific tech weakness, with no clear directional signal.