from january 2018, bitcoin price is always changing, a suddenly increased but after a second deep dropped will surly exist. it is the vise versa of bitcoin price last year (2017). until now the price of bitcoin from january upto now (june) is still dropping. so i was wondering if theres a group of people behind this bitcoin price drop?
I'm not sure if it's totally manipulated.
But we can deny, the one who has thousand bitcoins can pump and dump the market, But it's not manipulated, just because they're who has thousand bitcoins is powerful enough to control the market.