Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer. Tomorrow, Thursday, May 28, 2015, 57 U.S. common stocks are scheduled to go ex-dividend. The dividend yields on these stocks range from 0.3% to 12.7%. All of these stocks can be found on our stocks going ex-dividend section of our dividend calendar. Highlighted Stocks Going Ex-Dividend Tomorrow: TransAlta Owners of TransAlta (NYSE: TAC) shares, as of market close today, will be eligible for a dividend of 15 cents per share. At a price of $8.77 as of 9:36 a.m. ET, the dividend yield is 6.6%. The average volume for TransAlta has been 148,500 shares per day over the past 30 days. TransAlta has a market cap of $2.5 billion and is part of the utilities industry. Shares are down 3.3% year-to-date as of the close of trading on Tuesday. EXCLUSIVE OFFER: See inside Jim Cramer's multi-million dollar charitable trust portfolio to see the stocks he thinks could be potential winners. Click here to see his holdings for 14-days FREE. TransAlta Corporation operates as a non-regulated electricity generation and energy marketing company in Canada, the United States, and Western Australia. The company's Generation segment owns and operates hydro, wind, and natural gas- and coal-fired facilities. The company has a P/E ratio of 30.97. TheStreet Ratings rates TransAlta as a sell. The company's weaknesses can be seen in multiple areas, such as its unimpressive growth in net income, weak operating cash flow, generally disappointing historical performance in the stock itself and generally high debt management risk. You can view the full TransAlta Ratings Report now.