Example. Y Corporation owns 100 shares of the Z Corporation's common stock on January 1, 1959. Z Corporation on January 15, 1959, declares a dividend of $1.00 per share payable to shareholders of record on January 30, 1959. On January 21, 1959, Y Corporation sells short 25 shares of the Z Corporation's common stock and remains in the short position on January 31, 1959, the day that Z Corporation's common stock goes ex-dividend. Y Corporation is therefore obligated to make a payment to the lender of the 25 shares of Z Corporation's common stock which were sold short, corresponding to the $1.00 a share dividend that the lender would have received on those 25 shares, or $25.00. Therefore, $25.00 of the $100.00 that the Y Corporation receives as dividends from the Z Corporation with respect to the 100 shares of common stock in which it has a long position is not eligible for the dividends-received deduction.
26 C.F.R. §1.246-3