Kuwait Stock Exchange ended trading Tuesday on green boards with the weighted index reaching 431.31 points on an increase of 1.12, while the price index came to 6,191.21 points on a gain of 18.49 points and the KSX 15 index to 1,045.13 on a gain of 2.92 points. Trades came to 7,921 transactions, worth KD 39,094,106.65 and volume came to 493,513,995 shares. The sector indices were a mix of red, green, and unchanged readings.