EOS was worth 20% or so, quite briefly. Basically, it was just heavily pumped for a few months and then investors started to dump it en masse. It was once called the Chinese ETH, and that this project would definitely eclipse ETH in the Celestial Empire. And this coin was really popular in China. I think the developers of this project at some point realized that it is better to switch to something else and began to develop another project, although recently there was a surge to $10, but still, the project, after 4 years failed to update its ATH, many investors who bought in 2018 are still at a loss, if they suddenly still hold this coin.
My personal opinion, for long-term investing EOS is not suitable, I do not recommend anyone to buy it for profit in a few years, but for medium-term speculation can be used. Alas, it didn't make a killer of ETH.