Thanks for sharing, but it is a bit misleading...

The article seems implying that you can get stable income of (~15%) with the mentioned strategy. This is certainly not true. Remember, when you sell a "call" or a "put", you expose yourself of risk of the stock goes beyond the range your "call" or "put"'s striking price, in which case, you loose big money or under perform market. You can say, well, I can choose those stocks that are stable. But then you "call" and "put" price will be cheaper as well. People have to remember that any prices of the market (stocks, calls/puts,etc) are what the market deems as a fair price at the time. No body will buy from you or sell to you anything knowingly loosing money. The only way you can do better than the market is that you are either lucky or you have better insdie on the stocks (companies) than the market. There is NO preset rule to ensure you to beat market since the rule will disappear if everyone follows it.