This isn't a pump - do the math.
If Ethereum goes to $2,500 next year (which is a legitimate prediction), that will result in an EPS of roughly 0.15 per quarter at current mining rates. However, they are also planning on expanding mining capabilities greatly.
If they for instance, start mining 50,000 Ethereum per quarter at an average price of $1,500 (just being conservative with price here) they're looking at about $0.20 per quarter in EPS.
$0.20*4 = $0.80 EPS for a year. If their P/E ratio goes to 20 (also reasonable), they're at $16/share. That's not considering a greater increase in mining coins, as well as not factoring in Bitcoin revenue.
Of course, POS for Ethereum will kick in at some point in the next 2-3 years too, so beyond that, it's difficult to predict, but $20 a share in the next 1-2 years does not seem outlandish.