In this work we give the results of calculations of
the return on investment for cryptocurrency portfolios based on
the market cap in 2014 – 2021. We try to find a simple profitable
and low-risk strategy for an average investor who has only access
to the open statistical data. There is a widely known strategy of
this sort – to regularly buy bitcoin, so that in several years it
gives profit according to the historical data. We investigate if
there is such a strategy based on altcoin portfolios. We find that
the top 2-10 and top 11-50 portfolios are significantly worse than
the bitcoin strategy, while the best results we see in the top 101-
500 portfolios but they also show greater risks than bitcoin
strategy and require a bigger capital