ISLAMABAD  -  The 100-index of the Pakistan Stock Exchange (PSX) witnessed bearish trend on Tuesday, losing 718.51 points, a negative change of 0.60 percent, closing at 118,971.13 points as compared to 119,689.63 points on the last trading day. A total of 437,920,561 shares were traded during the day as compared to 425,372,280 shares the previous trading day, whereas the price of shares stood at Rs20.811 billion against Rs22.274 billion on the last trading day. As many as 473 companies transacted their shares in the stock market. 177 of them recorded gains and 232 sustained losses, whereas the shares prices of 64 companies remained unchanged. The three top trading companies were At-Tahur Limited with 39,628,306 shares at Rs49.69 per share, Fauji Foods Limited with 30,264,152 shares at Rs15.81 per share and Gul Ahmed with 29,115,777 shares at Rs23.97 per share. PIA Holding Company Limited witnessed a maximum increase of Rs1,370.34 per share, closing at Rs15,073.78, whereas runner-up was Khyber Textile Mills Limited with Rs130.19 rise in its share price to close at Rs1,432.07.