Staking mechanisms of some coins have waiting periods for unstaking. Cosmos ATOM for example takes 21 days to free your staking funds in order to be able to trade / move them. This obviously makes it impossible to panic sell when the market takes a dive. And then it actually gains bigger a share in the 'total market cap' because as everything went crashing it went on to hit its ATH and kept in the green into today until following the funnel down with the rest. I think that is due to people seeing a ship not sinking as fast as the rest and jumping on it. It's the only one in the top 100 whose price is currently sitting much higher than 30 days ago, about half of those gains from this crash. BTC, ETH, ADA – all far in the red from 30 days. If this trend continues I'd say by the end of the year Cosmos will be in the Top 10. Which is not a very high bar these days, current #10 is Dogecoin..