GATX Corp. ( GMT) has been named as the ''Top Dividend Stock of the Dow Transports'', according to Dividend Channel, which published its most recent ''DividendRank'' report. The report noted that among the components of the Dow Jones Transportation Average, GMT shares displayed both attractive valuation metrics and strong profitability metrics. For example, the recent GMT share price of $48.54 represents a price-to-book ratio of 1.7 and an annual dividend yield of 2.6% — by comparison, the average dividend paying stock in the Dow Transports yields 1.7% and trades at a price-to-book ratio of 5.1. The report also cited the strong quarterly dividend history at GATX Corp., and favorable long-term multi-year growth rates in key fundamental data points.The report stated, '' Dividend investors approaching investing from a value standpoint are generally most interested in researching the strongest most profitable companies, that also happen to be trading at an attractive valuation. That's what we aim to find using our proprietary DividendRank formula, which ranks the coverage universe based upon our various criteria for both profitability and valuation, to generate a list of the top most 'interesting' stocks, meant for investors as a source of ideas that merit further research.'' The Dow Jones Transportation Average, or ''Dow Transports'' for short, actually pre-dates the Dow Jones Industrial Average, and is the most widely followed index covering the American transportation sector. Click here to see the most popular ETF that follows the Dow Transports, and see the components and their weights, at ETFChannel.com » The current annualized dividend paid by GATX Corp. is $1.24/share, currently paid in quarterly installments, and its most recent dividend ex-date was on 12/11/2013. Below is a long-term dividend history chart for GMT, which the report stressed as being of key importance. Indeed, studying a company's past dividend history can be of good help in judging whether the most recent dividend is likely to continue.