Karachi, The November derivative of P.S.O.XD, trading under the PSO-NOVB code, commenced its trading session at 141.9 and concluded at a slightly increased 142.74. During the trading session, the stock reached a low of 139.5 and a high of 139.96. By day's end, 1,767,000 shares were traded with a closing price of 142.41.