Devonshire Industries Ltd plummeted 20.79 percent ($1.05) on The Bermuda Stock Exchange (BSX) yesterday.The company, which owns Bermuda Paint, closed at $4 with 2,000 shares traded.The Ascendant Group Ltd also declined 3.38 percent (49 cents) to $14 as 1,000 shares changed hands.Butterfield Bank, meanwhile, transacted 33,300 shares, but its share price held firm at $1.60, as did BF&M Ltd which traded 2,000 shares to close at $15.Overall the Index slipped 4.7 points (0.37 percent) to 1,277.88 with 38,300 shares worth $105,280 changing hands.The BSX Insurance Index also fell seven points (0.71 percent) to 973.