Kuwait Stock Exchange ended trading Monday on a mixed board with the weighted index reaching 430.18 points, shedding 0.66 points, while the price index came to 6,487.13 points, on a gain of 13.05 points, and the KSX 15 index reached 1,031.63, shedding 3.28 points.  Trades came to 9,723 transactions, worth KD 48,504,993.57, and volume came to 697,286,061 shares.  The sector indices were mixed, with six sectors in green, and four in red, while only four remained unchanged since the last closing.  The top gainer share was that of Investors Holding Group Company, and top loser was that of Union Real Estate Company, while the top volume share was that Gulf Investment House.