I don't know that I would call that a 'risk' in that if called eary, the funds are immediately available for other play.  So more like one possible satisfactory outcome than a risk.  I've rarely had any call exercised earlier than a few weeks before the call date, even though the positions have gotten far into the money and had oversized dividends.  It is possible, but IMO not probable with WIN, especially given the gap down plus price weakness that will likely take place between now and the next month or so.  But my objective is to bring in around 15%-20% APR cash flow from that and most other CC plays, while the play lasts.  So far there have been many opportunities to provide for that outcome.