NEW YORK ( TheStreet) -- The ex-dividend date for Sonic Automotive (NYSE: SAH) is tomorrow, March 13, 2012. Owners of shares as of market close today will be eligible for a dividend of 3 cents per share. At a price of $18.28 as of 9:30 a.m. ET, the dividend yield is 0.6%. The average volume for Sonic Automotive has been 546,900 shares per day over the past 30 days. Sonic Automotive has a market cap of $639.2 million and is part of the services sector and specialty retail industry. Shares are up 23.5% year to date as of the close of trading on Friday. Sonic Automotive, Inc. operates as an automotive retailer in the United States. The company has a P/E ratio of 13.7, above the average specialty retail industry P/E ratio of 8.1 and below the S&P 500 P/E ratio of 17.7.