Did you check Solana price in 2021? It was way above $80, it was some where around $200 if I am correct. The reason why it is pumping is because of two projects under it's ecosystem. It will pump more as it is coming up with more projects within its ecosystem in the future. Take a look at Avalanche before anyone comes to a conclusion about Solana. It is pumping in the same manner if I am rightfully to say it.

Like the above said it's due to new events and projects. Not just that, the upcoming Bitcoin event called block halving is also contributing to why Solana has increased its price for almost 2/3 months now.

But that's not the final price this year just my guess it would reach around $112 before the end of this month and it would drop slowly before the end of January.