Over the weekend a friend sent me a link to a Reddit post where a user concluded that following Jim Cramer’s stock buying recommendations for the first few months of 2021 would result in a 555% cumulative return. This number seemed implausible so I looked into the data and analyses. My opinion is that once a series of individual stocks has been bought in a time period, summing up the returns is not valid. Instead, one must consider the “weight” of each stock in the combined portfolio of assets. The comment I posted on the thread is below:

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