I have been observing a trend from last year bitcoin price movements to this year movement.
I have observed how we're getting so much positive news and adoption about bitcoin this year, but still the prices refuse to go up. If this was last year a single positive news will have pumps the prices by at least 10% or more.
Its that positive news don't longer have any effect on the price movement or is their any manipulation going on.
I also find that if we are in 2017, just a little bit of news is the market and bitcoin will quickly increase. But in 2018 this bad news is more influential because this is the correction year, just one FUD is the market falling by at least 10-15%. It's hard to make the bitcoin rise too sharply with good news.