US Stocks Fall on US-Iran Tensions, Treasury Yield Rise

US equities closed lower across the board, with the Dow down 0.68%, S&P 500 down 0.75%, and Nasdaq down 1.13%, pressured by escalating US-Iran tensions and a rise in Treasury yields. The market reaction reflects risk-off sentiment driven by geopolitical uncertainty and higher discount rates. The magnitude of further downside depends on the trajectory of the Iran situation and yield movements.