-snip-
Have you read the report? Your "slightly difference" has been stated explicitly in that report. Let me copy-paste it for you :
"In conclusion, the addition of crypto currencies generally increased the Sharpe ratio of a given portfolio, con-sidering that in 17 out of 18 cases a relevant increase in the Sharpe ratio was observed. In relative terms, the Sharpe ratio increased the most for all portfolios when moving from a 0% crypto allocation to a 1% crypto allocation. This evidences that a com-paratively small holding of crypto currencies can significantly improve a portfolio’s performance"
Source :
OP report Page 12
To OP. Yeap i agree with your conclusion. But i want to ask, Cryptocurrency that you guys use in your report are : Bitcoin, Ethereum, XRP, Litecoin, Tether, Bitcoin Cash, EOS, Binance Coin, Bitcoin SV and Tezos. And yes, will bring profit when it's in uptrend (in 2020, start from March - June 1). What about in downtrend? Perhaps starting on mid july 2020. do you have any research during the downtrend phase?