Buying returned at the Pakistan Stock Exchange (PSX) after US President Donald Trump said US military action against Iran is not necessary “at this point”, with the benchmark KSE-100 gaining nearly 3,300 points during the opening minutes of trading on Tuesday. At 9:45am, the benchmark index was hovering at 177,168.09, up 3,281.41 points or 1.89%. Buying was observed in key sectors, includin