On January 4/5 China took serious action to stop or control capital outflow via Bitcoin.
If you look at the chart you can see the sharp drop within a few trading days only early in January 2017.
But China is unable to keep control of capial outflows as everybody can see today, obviously. The BTC is back above 1.120 USD. Expect another steps from Chinese authoryties to bring down Bitcoin again. Otherwise take it as a serious alarm signal about China, if ever BTC is rising again fast. No matter what - long or medium term this is a major risk for global stockmarkets.