The Bermuda Stock Exchange Index (BSX) traded 1,965,208 shares worth BD$18,920,575.80 and 29 shares worth US$35,235 last week.The Index rose 74.32 points (6.2 percent) to 1,198.22, while the BSX Insurance Index was also up five points (0.49 percent) at 1, 015.The biggest climbers were Butterfield Bank, which traded 40,350 common shares to rise 12.5 percent (15 cents) and Argus Group Holdings Ltd., which saw 288 shares change hands as it increased 5.7 percent (30 cents).The largest decliners proved to be West Hamilton Holdings Ltd., which closed down 20 percent ($2) after transacting 10,000 shares, and KeyTech Ltd., which slipped 3.4 percent (25 cents) with 14,416 shares traded.