My strategy is different. More than 95% of the time I trade in Short Straddles or Short Stranggles. I use only 35 to 40 % total margin money. 10% I keep in broker account. 50% I keep in Bank Fd and I get sanctioned 90% of the FD as overdraft. Rarely I need to use the Overdraft, but still I need for emergency situations. I manage my risk and money properly on various market condition. MOST IMPORTANT ASPECT OF TRADING IS MONEY MANAGEMENT.I also keep on adjusting my position size in varying degrees if the market move more than 200 points in nifty . Normally I don`t incurr loss and never keep stop loss. For the last 12 months I earned 44-4% = 40% I incurred 4% loss in May month. I earned 44 from 11 months and incurred loss 4% in May. I am satisfied with my return i.e 3% per month on compound basis, which comes roughly 40%. I sell options of the next month. I write next month options when the expiry date of current month is between 28 and 20 days remaining. I dilute my postion in uncetain market conditions. I don`t keep position , if some important news is to come , such as election result, budget day etc. I keep on adding, reducing my positon in different market conditons with proper risk and money management. Making between 35 to 50 % in a year consitently is not bad though more can be made with more risk reward ratio. My formula is almost guarantted because I keep on adjustions my positon in different market condition. I rarely make loss in any month. Profits will vary from month to month. In some month I may get profit 5% , In some month I may get 2 % likewise. Now I am holding my position of Oct month series expiry. I will cover this position between September 25 and October 5 and carry forward of November series. I do like this month after month and year after year