there is a high probability that its loan rate is zero. Contact your broker to confirm if you can borrow the stock at any time. If these conditions are met, open a margin account,I personally recommend Interactive Brokers, as they have a wide range of stocks available for borrowing, or NBDB, which charges zero commission. On pay day, sell an equivalent value of the stock on the margin account using a limit on close order. By doing so, regardless of market fluctuations in the stock's price, you are guaranteed a 15% return.