Have you considered the long term trend?
Bitcoin has a 4-year cycle because every 4 years the mining reward is reduced.
This leads to a bubble because people are buying coins instead of mining equipment.
When the bubble bursts, Bitcoin drops down to 20% of it's peak value.
This process takes years.
Then in about a year Bitcoin rises massively again reaching a new peak.
The next will be in 2020 when mining rewards will be removed entirely.