There are many different reasons in My perspective.
1. Tax-free verdict.
2. The new exchange
3. Chinese hand
4. Halving in approach
5. New powerful ASICs are now available for mining.
1. Not much have changed in EU after that ruling.
2. Gemini seems to be overhyped. Also, I don't see any correlation with the price increase to the exchange alone.
3. Very evident, look at the volume. Even though it is fake, still a large amount of money comes from China.
4. 8+ months left. Halving is too far to make such an effect in price.
5. Could be, but still depends on how the buyers are going to value bitcoin too.