It's not my worst investment of all time, I recall holding one...

It's not my worst investment of all time, I recall holding one investment company I held back in the 1980s going to zero. I did not buy LS1 at the IPO, so it has only been a minor disaster for me.

Seriously though, a lot depends on when one bought something. A stock bought near the end of a bull market will look worse than the same stock bought years earlier. One really has to compare LS1 with the performance of other stocks from a base calculated on LS1's IPO date. What could also affect the result is whether dividends were reinvested or not.

With the above in mind, using NTA adjusted for dividends / distributions (though not reinvesting them), I have calculated that since April 2018, LS1, at -39% only gains the silver medal, placing second worst of the numerous equity investment vehicles I own or follow. Another contender is GC1, though this will likely settle for the bronze once their March NTA is eventually reported. The gold medal however clearly goes to FOR having managed -54% over that period. To put it another way, LS1 'only' has to go up 64% to regain the issue price, whereas FOR needs a 116% move to regain its former value.