The manager of a charitable foundation’s $50 million stock portfolio is concerned about the portfolio’s heavy concentration in one stock, Noble Petroleum (NBP). Specifically, the fund has $20 million of this stock as a result of a recent donation to the fund. She is considering using an equity swap to reduce the exposure to NBP and allow the fund to invest indirectly in the Wilshire 5000 Index. The stock is currently selling for $20 a share, and the fund owns 1 million shares. The manager is not quite ready to reduce all of the fund’s exposure to NBP, so she decides to synthetically sell off one-quarter of the position. Explain how she would do this and identify some problems she might encounter.