guys, was just reading through this strategy and wanted to know what the catch is (And there has to be one.....) XYZ stock is trading at $90 and is paying $2 in dividend tomorrow. A put with a striking price of $100 is selling for $11. The options trader can enter a riskless dividend arbitrage by purchasing both the stock for $9000 and the put for $1100 for a total of $10100. On ex-dividend, he collects $200 in the form of dividends and exercises his put to sell his stock for $10000, bringing in a total of $10200. Since his initial investment is only $10100, he earns $100 in zero risk profits.