I know very little about crypto just generaly speaking but if I had to guess I would just say that it is because of the overall increase in marketcap from all crypto. I did notice that BTC was up something like 25% over the past 7 days and XRP was up 60%!
A lot of it is people chasing profit, but Hive is one of the few where you can actually earn it. Inflation is an issue, but we can create value. I'm no economist, but I see potential here.