Recently, I came across a new investment strategy with an annualized return of 200%, which gives a 3.8% return in seven days.

I did the math: put in $200, and the weekly profit is $7.6. If I do the same with three different coins at the same time, that's $22.8 in seven days—about 160 RMB. On average, that's about 23 RMB automatically credited to my account every day—enough for a decent lunch.

My idea is to hedge the risk by pairing it with a short position. Is this strategy reliable? Has anyone tried something similar and can share their actual experience?