BF&M Ltd. dropped 5.8 percent (84 cents) on The Bermuda Stock Exchange (BSX) yesterday.The insurer traded 2,400 shares to close at $13.66.Meanwhile, Argus Group Holdings Ltd. rose 3.6 percent (20 cents) to $5.75, with 137,827 shares changing hands.The Ascendant Group Ltd. also slipped 0.3 percent (five cents) to $14.75, as 1,800 shares were transacted.KeyTech Ltd. also traded 6,000 shares, but its share price held firm at $7.Overall the Index fell 2.65 points (0.23 percent) to 1,170.29, with 148,027 shares worth $867,696 changing hands.The BSX Insurance Index, however, climbed nine points (0.88 percent) to 1,026.