NEW YORK ( TheStreet) -- The ex-dividend date for Sigma-Aldrich Corporation (Nasdaq: SIAL) is tomorrow, November 29, 2011. Owners of shares as of market close today will be eligible for a dividend of 18 cents per share. At a price of $60.93 as of 9:30 a.m. ET, the dividend yield is 1.2%.

The average volume for Sigma-Aldrich has been 850,100 shares per day over the past 30 days. Sigma-Aldrich has a market cap of $7.21 billion and is part of the basic materials sector and chemicals industry. Shares are down 11.5% year to date as of the close of trading on Friday.

Sigma-Aldrich Corporation, together with its subsidiaries, develops, manufactures, purchases, and distributes a range of chemicals, biochemicals, and equipment worldwide. The company has a P/E ratio of 16.4, below the average chemicals industry P/E ratio of 16.7 and below the S&P 500 P/E ratio of 17.7.

TheStreet Ratings rates Sigma-Aldrich as a buy. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures, impressive record of earnings per share growth, expanding profit margins and compelling growth in net income. We feel these strengths outweigh the fact that the company has had lackluster performance in the stock itself. You can view the full Sigma-Aldrich Ratings Report.

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