After days of selling pressure, buying momentum returned to the Pakistan Stock Exchange (PSX) as the State Bank of Pakistan (SBP), in line with market expectations, kept the policy rate unchanged. The benchmark KSE-100 Index gained nearly 1,200 points during the opening minutes of trading on Tuesday. At 9:35am, the benchmark index was hovering at 163,359.39, a gain of 1,195.58 points or 0.74%.