I was searching for this excel file that I worked on some time ago.
The data was for 285 weeks. Bank Nifty movement from Thursday close to Thursday close was considered (Except for when Thursday was a holiday).
For example out of 285 weeks, it moved by more than 100 points during that weekly timeframe 240 times. On the right side instead of absolute movement, I considered percentage movement.
This data shows that the trade model proposed by you will not work on most weeks.
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