On the Leaderboard, the 5th column shows performance and the default is “all time.”
But instead of showing the all-time return, it shows each system’s “Annual return (compounded).”
This is true for every strategy, but taking mine as an example “VXX Bias” (https://collective2.com/details/100707640) it shows in the all-time column as +60.3%.
However, the actual all-time gain over 4 years for my system is +552%.
Does this post double as a shameless plug of my system? Sure! But it’s also a real bug and I reported it two years ago and never got a response.