A day after observing a massive selloff, buying momentum returned to the Pakistan Stock Exchange (PSX), with the benchmark KSE-100 Index gaining over 2,900 points during the opening minutes of trading on Tuesday. At 9:40am, the benchmark index was hovering at 154,878.85, up by 2,905.86 or 1.91%. Buying was observed in key sectors, including cement, commercial banks, fertilizer, E&Ps, OMCs an