U.S. HOT STOCK FUTURES: HOT STOCKS TO WATCH

Among the companies with shares expected to actively trade in Monday's session are Health Management Associates Inc. (HMA), Mannkind Corp. (MNKD) and Zoltek Cos. (ZOLT).

Health Management's second-quarter profit fell 80% as its same-hospital revenue declined and expenses mounted, news that comes as the battle for its board heats up and after the company agreed to sell itself to a rival hospital operator. Shares slipped 2% to $12.97 after hours.

Mannkind reported a wider-than-expected loss for the second quarter. Shares of the biopharmaceutical company fell 1.6% to $7.36 after hours.

Zoltek, which makes carbon fibers that strengthen and lighten materials, reported a drop in revenue for its fiscal third quarter as the company's chief executive said "the cyclical downturn in the wind energy market, which began in the fourth quarter of fiscal 2012, continued to negatively affect our sales and operating results in the third quarter." Shares fell 3.4% to $13.29 after hours.

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Standard & Poor's Ratings Services lowered its rating on Cytec Industries Inc. (CYT) to the brink of junk territory, noting the business risk for the company's aerospace-materials segment is weaker than previously estimated.

The U.S. International Trade Commission on Friday ordered a ban on the import and sale of some Samsung Electronics Co. (SSNHZ, 005930.SE) mobile devices after finding they infringed two Apple Inc. (AAPL) patents.

Standard & Poor's Ratings Services raised its ratings on Spectrum Brands Holdings Inc. (SPB), citing the consumer-products company's plan to refinance debt and a recent acquisition that looks favorable.

Write to Nathalie Tadena at [e-mail]

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