The Bermuda Stock Exchange Index closed today at 1,155.31, reflecting a 3.62 decline.The biggest mover was KeyTech Ltd, which saw 959,700 shares move at 6.12, down 0.18.Some 406,500 West Hamilton Holdings shares changed hands at 6.00, down 2.95.Ascendant Goup Limited saw 200 shares change hands at 11.50, up 0.25.