pull back strategy for BINARY OPTION
Expiry : 3 or 5mmin
Chart : M1 chart
The same rule can use for higher time frames..

Rule is below
DOWN trade
0. RSI filter bar is in RED
1. Identify BIG RED bar
2. plot horiztonal line at wick of next bars
3. Ensure there is not bars crosses between the pin bar
4, Bar high price crosses and closed below horizontal line
5. Confrim the stcoh is above ob level and touch/cross