The Los Angeles Business Journal’s index of the 200 largest local public companies closed down 0.17 for week ended Dec. 31.

Decliners outpaced gainers 104 to 75. Since the beginning of the year, the index has risen nearly 14 percent to 111.54, with gainers outpacing decliners 122 to 72.

Most of the decliners in the light trading during the holiday week were in the single digits, with ante4 Inc. one of the few exceptions. The Los Angeles company, which took over the assets of the World Poker Tour, said it received a notice of possible delisting from the Nasdaq. Shares fell more than 12 percent to $1.04.

One of the largest gainers was OSI Systems Inc., a Hawthorne maker of airport screening machines, which closed up more than 25 percent to $27.28 after earlier hitting a 52-week high. It is among several companies in the security sector whose shares jumped after a failed commercial jetliner bombing increased speculation that airports would be stepping up security measures.

Enova Systems Inc., a power generation company in Torrance, benefited from a proposed public offering expected to raise nearly $13 million. The company closed up 23 percent to $1.85.