Short strangle Vs Iron Condor

Which Strategy gives better ROI in options selling

Last week i did the analysis on maximising the ROI on Iron condor and identified that taking 500 to 600 risk width is giving more ROI than the traditional 100 points risk width Iron condor- taking 600 RW IC is very well applicable in our case as our selling strike price is anyway far away (800 to 1000 points) from current market price in case of monthly option. And also since this is monthly, even if the positions go wrong in short term there is time for retracements and its is liquid

However my preliminary analysis on short strangle showed that SSG (short strangle) gives less ROI than the IC. I had taken a short strangle over last week and analysed the ROI on that.

As you can see below the short strangle ROI and the IC ROI is more or less the same. Infact considering only weekly ROI - the SSG ROI is more than that of IC 

However SSG comes with a lower break even spread and unlimited risk which makes you to lose sleep compared to IC. We can enter into monthly IC earlier than this (mid of this month for the next month expiry) at the time to expiry as 45 days baggin more premium and ROI and also making reference trades along the way making more ROI.  

There is no way to get the margin by trade - hence i computed the margin based on the zerodha margin calculator and analysed the margin consumption below, The actual margin consumption is 15.45 lakhs instead of 15.10 laks as computed in the estimate this is because as the market makes movement margin consumption increases - hence it is always prudent to keep 10% in cash for margin fluctuations and additional 20% of used margin as buffer for any adjustment trade required