PriceSmart - The retailer posted earnings of 66 cents a share, edging past expectations by 4 cents a share. Meanwhile, revenue was in line with estimates at $535 million.
Ruby Tuesday - The restaurant chain posted a loss of 24 cents a share on revenue of $304 million, missing expectations for a loss of 6 cents a share on sales of $305 million. In addition, the company said it expects to see full-year 2013 earnings of 24 cents to 30 cents a share, excluding one-time items, which was in the lower end of Wall Street expectations. Shares declined in extended-hours trading.
Morningstar - The financial-data company said its CFO Scott Cooley will step down this year. Cooley has been CFO since 2007.
Citi initiated coverage of Aflac, Hartford Financial and Prudential Financial with a "buy" rating. Meanwhile, Citi started coverage of Lincoln National, MetLife and Principal Financial with a "neutral" recommendation.
Herbalife - Shares of the nutrition and skin-care products company edged higher in extended-hours trading after being whipsawed in the regular trading session.
Earlier Wednesday, hedge fund manager Dan Loeb's Third Point disclosed an 8.24 percent stake in Herbalife, a month after Bill Ackman of Pershing Square outlined his case for shorting the company. Separately, the SEC opened an inquiry into Herbalife. The probe won't necessarily result in any enforcement action, but it adds pressure on the company a day before its meeting with investors.
Facebook - Shares of the social-networking giant were largely unchanged in extended-hours trading after closing above $30 a share for the first time since mid-July. Late Tuesday, the company sent out a press event invitation for next week at its Menlo Park campus. The invitation has some buzzing about a phone, while others speculate it could be a search engine.