Argus Group Holdings advanced 0.65, or 18.1 percent, and closed at $4.25 yesterday as 10,000 shares changed hands.LOM (Holdings) Ltd declined 0.15, or 6.1 percent, and closed at $2.30 as 21,704 shares changed hands.KeyTech Ltd declined 0.10, or 1.6 percent, to close at $6.20 as 2,400 shares changed hands.Bermuda National Ltd fell 0.10, or 0.8 percent, to close at $12 as 2,700 shares changed hands.Butterfield Bank was unchanged at $1.40 as 46,116 shares changed hands.Ascendant Group Limited was unchanged at $11.20 as 193 shares changed hands.Overall, the BSX Index closed 9.02, or 0.78 percent, higher to 1,169.79.