O'Gara Group Files for IPO

The O'Gara Group Inc., a Cincinnati-based provider of counterterrorism services, has filed for a $172.5 million IPO. It plans to trade on the Nasdaq under ticker symbol OGAR, with Morgan Keegan & Co. serving as lead underwriter. The Walnut Group is listed as holding a 25.77% pre-IPO position. www.ogaragroup.com