Here’s an interesting graph, it’s the price of Ethereum Classic (ETC) compared to Ether over the past 180 days:

There is some strengthening of Ethereum Classic very recently. Granted, Ethereum Classic has mostly just gone down since the fork with Ethereum back in 2016. However, it’s interesting - giving the upcoming Beacon chain merge - to keep an eye on Ethereum Classic, which remains on a proof of work framework.