On 11/26/13, Cullen/Frost Bankers, Inc.'s 5.375% Non-Cumulative Perpetual Preferred Stock, Series A (CFR.PRA) will trade ex-dividend, for its quarterly dividend of $0.3359, payable on 12/15/13. As a percentage of CFR.PRA's recent share price of $21.27, this dividend works out to approximately 1.58%, so look for shares of CFR.PRA to trade 1.58% lower — all else being equal — when CFR.PRA shares open for trading on 11/26/13. On an annualized basis, the current yield is approximately 6.30%, which compares to an average yield of 5.95% in the "Financial" preferred stock category, according to Preferred Stock Channel.As of last close, CFR.PRA was trading at a 14.72% discount to its liquidation preference amount. Investors should keep in mind that the shares are not cumulative, meaning that in the event of a missed payment, the company does not have to pay the balance of missed dividends to preferred shareholders before resuming a common dividend.The chart below shows the one year performance of CFR.PRA shares, versus CFR: Below is a dividend history chart for CFR.PRA, showing historical dividends prior to the most recent $0.3359 on Cullen/Frost Bankers, Inc.'s 5.375% Non-Cumulative Perpetual Preferred Stock, Series A : According to the ETF Finder at ETF Channel, Cullen/Frost Bankers, Inc. ( CFR) makes up 2.11% of the KBW Bank Portfolio ETF (KBWB) which is trading relatively unchanged on the day Friday. In Friday trading, Cullen/Frost Bankers, Inc.'s 5.375% Non-Cumulative Perpetual Preferred Stock, Series A ( CFR.PRA) is currently down about 0.2% on the day, while the common shares ( CFR) are up about 0.4%.