Price index of Kuwait stock Exchange (KSE) climbed to 6,310.55 gaining up to 18.93 points in trading in middle of Thursday\'s session. However, the weighted index dropped to 429.72, losing 0.82 pointd and the KSX 15 index fell to 1,036.41, decreasing 2.4 points. Number of trades amounted to 5,558, value of traded shares reached KD 24, 288,898.698 and volume of exchanged stocks 577,624,737.