The Los Angeles Business Journal’s index of largest local public companies narrowly closed up for the week ended Oct. 29 as the markets closed out one of their best months of the year.

The weighted LABJ index rose 0.18 percent to 114.45, with decliners outpacing gainers 95 to 79.

Ixia, a Calabasas computer technology company, jumped nearly 17 percent to $15.65 after reporting record revenue growth and moving from a loss to profit in the third quarter.

Quarterly reports were the main drivers of local stocks. Stamps.com rose gained 15 percent to $15.94 after the Los Angeles maker of postage software reported higher third-quarter earnings and announced a special dividend.

Koreatown financial institution Nara Bancorp Inc. gained 12 percent to $7.84 after reporting a 38 percent improvement in third quarter profit.

Among the largest decliners was Manhattan Beach footwear maker Skechers U.S.A., which declined 17.6 percent to $19.44 after missing Wall Street earnings forecasts and announcing problems with canceled orders.

Commerce designer denim maker Joe’s Jeans Inc. fell 17 percent to $1.55 after reporting that its quarterly profit was hurt by increased expenses and a higher tax rate.