Boursa Kuwait ended trading Sunday in the red zone with the price index going down by 18.98 points to stand at 6,620.4 points. The Weighted shed 1.83 points to read 417.28 points and KSX 15 lost 4.24 points to read 962.45 points. The value of trades was at KD 15,497,489.984 with the volume reaching 142,958,701 shares done through 5,002 deals.