Bloomberg Markets with Carol Massar and Cory Johnson.\u0010\u0010GUEST:\u0010David Wilson\u0010Stocks Editor\u0010Bloomberg News\u0010Discussing his "Stock of the Day" Omega Flex (OFLX). Omega Flex Inc.'s shares are headed for their biggest one-day decline in almost nine years after the maker of flexible metal hoses released second-quarter results. Earnings fell 18 which the company attributed to increases in raw-material costs percent, which the company attributed to increases in raw-material costs and expenses for an employee stock plan. Omega Flex's profit margin was the lowest in more than four years, according to data compiled by Bloomberg.