Implemented Pair trading strategy using python - need feedback

Intermediate coder and newbee trader here.

I have implemented Pair trading strategy as per this varsity article using python.

Request all experts here to provide valuable feedback on the the implementation-

It is divided in three sections-

1. Identifying potentially correlated stocks
2. Calculating pair stats like pair ratio, mean & standard deviation
3. Backtesting the strategy

I've added links to jupyter notebooks at the end of each section.

Look forward to your comment

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