The Bermuda Stock Exchange Index closed at 1,161.83 yesterday, unchanged from Monday. Share volume was 215,000 with Bank of NT Butterfield unchanged at $1.40 as 187,7000 shares changed hands. Also closing unchanged was Argus Group Holdings Ltd at $4 as 28,000 shares changed hands. Bank of NT Butterfield Preference Shares were unchanged at $1,200 as 173 sharss changed hands.