New York ? The strongest industrial production numbers since June 2000 gave stocks a solid advance Friday, but analysts said Wall Street nonetheless seemed guarded as it awaited more proof that companies are benefiting from the improving economy.

The Dow Jones industrial average closed up 90.09, or 0.9 percent, at 10,607.23, ending an otherwise lackluster week up 0.3 percent.

Broader stock indicators also advanced. The Standard & Poor’s 500 index finished up 13.12, or 1.1 percent, at 1,166.16, for a weekly gain of 0.2 percent. The Nasdaq composite index gained 14.16, or 0.8 percent, to 1,868.30, but fell 3.2 percent for the week.

Investors bid financial stocks higher, including American Express, which gained $1.54, or 3.8 percent, to $42.15. Manufacturing stocks also advanced. General Motors rose 85 cents to $60.75.

Tech stocks were mixed on concerns the beleaguered sector will turn around at a slower pace than the rest of the economy.