It's in relation with the fact that Tesla did sell 10% of their bitcoins.
And about investing... you have to really DYOR for your money, people should not suggest what you should do. And if you want to hear speculations on the price, just look at the speculation subforum: some will show you how bitcoin can go to 100k and beyond, some will tell you that's going to fall. In fact, nobody knows what the future holds and that why nobody should tell you what you should do with your money.