Systematic Options Writing
Example: DIA
For this example the DJIA ETF Diamonds Trust Series will be used (DIA) for illustrative purposes. This example is done in a worst case scenario purposefully to demonstrate the versatility of this strategy. This can be a bullish or bearish strategy depending on which side is initially taken but here we will assume the bullish view and see what happened when I was wrong.
The beginning date was March 4, 2005 when the DIA closed @ 109.5, so I was bullish and bought 100 shares at the end of the day at that price. Historically this was an all time high for the DIA. To hedge this position I purchased a protective put in this case, the May 109 put for 1.95. This brings my cost basis to 111.45 (109.5 + 1.95) but provides infinite downside protection.
From here the stock declined 5% over the next 3 weeks and on March 29, closed @ 104. My loss at his point would have been 5.5 points had the put not been purchased but because it was, I had lost only -2.25 points because the put is now worth 5.2 (5.2 â 1.95 = 3.25 â 5.5 = -2.25). In other words, the put has appreciated 3.25 points in value which partially offsets the 5.5 point loss in the stock. I was still bullish at this point and believed the stock would recover. To further cover the loss, I sold the ATM, May 104 put for 1.95 bringing my cost basis to .30¢. From this point on, if the DIA went up, I would simply hold my current position and as the stock approaches my buy price of 109.5; the price of the 104 put that was sold will drop to zero, and I would be able to buy it back for full profit. If that were to happen I would essentially own the 109 protective put for free (well not quite for free, actually .30¢ but for arguments sakeâ¦.itâs damn cheap). This means that if the stock were to drop again, no further protective action would need to be taken because any loss in stock would be exactly offset by the 109 which was paid for by the sale and repurchase of the 104 put; time value and theta decay were also taken care of by the 104 sold put. If the DIA goes up, great, I can afford to let my profits ride and may at some point put on a collar if I begin to feel bearish in the future.
In actuality however, the stock traded sideways for about a week and a half then took a nosedive all the way down to 100. Now I can do several things here and itâs a good bet that the stock will recover at least a few points after such a drastic decline, but for arguments sake, letâs say Iâm still not sure and expect that the stock may decline further. I now sell a covered straddle and cover the 104 put that I sold. When the straddle was sold, it was also time to sell the original 109 put because if the stock rises, a loss will accrue the further it strays upward from the 100 call. This is because I would be obligated to deliver the shares at this price. So the profit on the put must be taken in order to lock in the price of assignment. At this point I should examine the situation because things have gotten a bit complicated. I have lost 9.5 points in the stock but gained 7.85 in the 109 put bringing the loss to 1.65. But then the 104 put was sold and covered for a loss of 2.15 points. My total loss at this point would be 3.8 points. But I just sold the covered straddle for 3.6 which brings my total loss to just .20¢ if the straddle is held to expiration. Also important to note is that when a straddle is sold, you are essentially short vega in the sense that a decrease in vega will benefit you because it will cause the IV of both straddle options to drop, diminishing the value of the spread. Today is May 16, and the DIA closed @ 102.64 with 4 days left to expiration. If the DIA drops below 100 I will have to purchase another 100 shares at this price and will sell 2 covered calls on the position. Whatever happens, my original cost basis for the 100 shares I currently own will be 100.20, so I could close out this position right after expiry if it is below 100. If it closes above 100, I will be assigned on the straddle call and my total loss will be just .20¢, not bad for a 10 point drop in the stock.