Straddle / Iron fly Adjustment is an indicator to assist (especially) Nifty / Bank Nifty Option Writers / Sellers (other instrument writers also) to draw their straddle / iron fly payoff diagram in the chart, mainly max profit and breakeven points and do adjustment based on the market movement.
Basic Idea: (My Conclusion for making this Indicator) 1) For Straddle / Iron fly writers need to adjust their position based on the market movement.
2) Here I give two adjustment ideas which one is my favorite method and another one is one of my friends is using.
a) Price Vs Time based Adjustment I usually wait until price cross the price vs time line to do any adjustment. Generally, price vs time-based adjustment gives you more point to enter any adjustment in initial day/time when you created the straddle / iron fly. But one later it will reduce the range it become narrow.
b) Percentage based Adjustment This method using by one of my friends which is based percentage between straddle / iron fly line and upper / lower breakeven points. Generally, he using 50 percentage. In this indicator we do have option to change the percentage between 25 to 100.
User must give inputs to see the straddle / iron fly diagram (Max Profit, Breakeven points, Adjustment, Percentage based adjust line and so) This is not an intraday indicator and also its not suggesting you to take any buy/sell or straddle/iron fly positions. Its just giving an opportunity to draw a payoff diagram of for max profit and breakeven zone. And also helps to identify the adjustment based given scenario.