A large volume of Butterfield Bank shares changed hands yesterday on the Bermuda Stock Exchange (BSX).The shares closed unchanged at $1.30 on a volume of 101,154.One hundred shares in LOM (Holdings) Ltd also traded, closing up 24 percent, or 70 cents, to end the day at $3.60.Overall the BSX closed up 3.88 at 1,124.30.The BSX Insurance Index closed down 2.19 percent, or 22, to finish at 983.00.