Pandas Panel Data - Identifying year gap and calculating stock return

I am experienced in data science with Python libraries like pandas. I read your problem and since it looks simple for me I would be glad to help you and give some advise with such issues in the future. The solution will not take more than 2 hours. Regards.

Interesting challenge, I am interested in helping you with it. To be honest I didn’t fully understand your issue description so further info needed

I will be able to help u with it. Just need some more info about the problem. Looking forward for a positive reply from your side.