After-Hours Buzz: PSMT, HMA, RLGY & More

Check out which companies are making headlines after the bell Tuesday:

PriceSmart - The membership warehouse club operator posted earnings of 82 cents a share, exceeding expectations by 5 cents a share. But the company posted sales of $592 million, missing estimates for $606 million. Shares gained in extended-hours trading.

(Read More: Stocks Log Gains, Dow Hits New High; JCP Skids)

Health Management Associates - The health care facilities operator said it expects to report earnings of between 12 cents a share and 13 cents a share on revenue of $1.48 billion to $1.77 billion, disappointing Wall Street analysts who expected the company to post 24 cents a share on sales of $1.77 billion. Shares tumbled in extended-hours trading.

Realogy - The parent company of Century 21 and Coldwell Banker said it expects to post sales of between $950 million and $960 million in the first quarter, sharply missing projections for $988 million. In addition, the company announced a secondary common stock offering. Shares dropped sharply in extended-hours trading.

Bank of New York Mellon - The bank increased its quarterly dividend by 15 percent to 15 cents a share from 13 cents a share. The company previously announced a $1.35 billion share repurchase program and plans for the 15 percent increase to its quarterly dividend as part of the capital plan submitted to the Federal Reserve last month. Shares were largely unchanged in extended-hours trading.

IDEX - The manufacturing company increases quarterly dividend by 15 percent to 23 cents a share from 20 cents a share.

Hologic - Stifel Nicolaus initiated coverage of the medical products company with a "hold" rating.

General Motors - The automaker said it will begin the testing of mobile Facebook ads starting specific to the Chevrolet Sonic model. Last May, GM initially announced it would stop advertising on the social-networking giant citing effectiveness of the ads.

—By CNBC's JeeYeon Park (Follow JeeYeon on Twitter: @JeeYeonParkCNBC)

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