this is only giving more trust to bitcoin, and a lot of people are saying that this is something damaging for bitcoin because walls street and so many other institutions are going to put their hands on bitcoin, but no, it is not a bad thing for bitcoin.
And of course not, i dont think that the price will fall, if you are an early adopter, you should know that a real decrease is just a 40 or 60 percent, not just a few hundreds or a little bit more.
Invest the other ten thousand before it goes up to $20000