Shares of the following companies may have unusual moves in U.S. trading tomorrow. Stock symbols are in parentheses, and prices are as of 5 p.m. in New York.
Standard & Poor’s 500 Index futures expiring in December slipped 0.1 percent to 1,155.80.
Alcoa Inc. （AA US） rose 3 percent to $12.57. The largest U.S. aluminum producer reported third-quarter earnings excluding certain items were 9 cents a share, topping the 5-cent average estimate of analysts surveyed by Bloomberg.
AngioDynamics Inc. （ANGO US）: gained 1.2 percent to $14.50. The maker of devices to treat blood vessel disease said first- quarter earnings were 8 cents a share, matching the average analyst estimate.
Bruker Corp. （BRKR US）: The maker of laboratory instruments completed the acquisition of the Atomic Force Microscopy and the Optical Industrial Metrology instruments businesses from Veeco Instruments, Inc. for $229.4 million in cash.
DragonWave Inc. （DRWI US） climbed 6.2 percent to $7.07. The maker of wireless equipment reported second-quarter revenue of $27.2 million, beating the average analyst estimate of $26.9 million.
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