Ok here is the first Reason :
The increased price of bitcoin was not even worth it. It was just jumping without any reason. And the recent price jumping was just like a madness but nothing. In just 1 month it increased by 109.36 %.. can you expect that?? I think the market craze went down. that is why the price is dumping..
Reason 2: I think the price is dumping because of its altcoin BCH.. Current BCH price pumping making peoples invest in bch inspite of btc.. people are thinking they will get more profit in bch. than btc. that is why they are starting to sell bitcoin. and starting to invest in bitcoin cash. That's why for the first time A cryptocoin is shaking the kingdom... which is BCH.
Ok. the real question.. Will the price go up again?? Or it'll go down and down???What's going to happen to Bitcoin??what
Your reasons are almost certainly correct but don't tell the full story, bitcoins value is defined only by the market and so it cannot be truly overvalued. I think that it shot up too quick and an adjustment was needed. I do however suspect that the price is going to recover in time, bitcoin cash will go back to being somewhat insignificant and the price will increase again for bitcoin.