Investors discovered last week that the Bank of Bermuda's listing on a foreign exchange allows the bank to raise additional capital, but also exposes it to investor mood swings which don't necessarily reflect the bank's performance.

The bank's share price tumbled during the week, and brought the Bermuda Stock Exchange down with it. On the Nasdaq, the bank's shares opened the week at $40.35, but by Friday they had fallen to $33.77. That sent the price on the Bermuda market downward, and locally the shares lost $8.50, or nearly a fifth of their value, to finish trading at $35.50.

Overall, the BSX index lost 11.18 percent, or 269.974 points for the week to close at 2,415.84 on Friday afternoon.

The Bank of Butterfield, which is also eligible for trading on a foreign exchange but has yet to list on one, was stable during the week, loosing just half a point to close at $33. Bermuda Commercial Bank stock gained a quarter-point for the week, closing at $7.

Master's Ltd., whose stock is seldom traded, gained a dollar to finish at $8.

In insurance, BF&M's shares rose 75 cents to $11.50. The company's preferred shares inched up five cents to $12.05.

KeyTech, the parent of the Bermuda Telephone Company Ltd., gained $1.25. The stock closed at $43.

In bond trading, the Corporation of Hamilton's 8 percent Bermuda dollar bond rose 95 cents to $101. BTC's bond gained $1.45 to close at $100.