Market diary.

Shucking off earlier gains during a Labor Day-shortened trading period, markets were mixed for the week ending Sept 6 on fears that a series of upbeat economic reports would prompt continued Federal Reserve rate hikes. The Dow Jones Industrial Average was up 0.2 percent, while the Nasdaq Composite Index dropped 0.8 percent and Standard & Poor's 500 Index lost 0.3 percent. The LABJ 200 Index was down 0.6 percent, with advancing issues outpacing decliners 98 to 90. Fourteen stocks in the LABJ index hit hew highs, while seven hit new lows. Summa Industries, which agreed to be acquired by a Swiss company just before the holiday weekend, ended the week up 79 percent to $14.76. In a switch from the previous week, the communications sector showed the largest decline, with Optical Communications Products Inc. dropping 9 percent and MRV Communications Inc., down 8 percent. The energy and utilities sector fell 6 percent, with Occidental Petroleum Corp. down 9 percent and Capstone Turbine Corp. off 4 percent. Aerospace-Defense was the only sector to show an appreciable gain for the week, up 3 percent. Despite losing a $3.9 billion NASA contract to design a next-generation lunar spacecraft, Northrop Grumman Corp. ended the week up 4 percent. Ducommun Inc., which won a $2.6 million NASA contract related to the moon project, rose 5 percent.