lately the value of bitcoin tends to be stable and persist in the range of $ 3000. when a lot of altcoins keep moving up or down, bitcoin is still very slow, and that certainly makes investors and hodlers a little hurt by this situation. but this is a good start to starting market movements next year.
Actually no one can ensure that bitcoin moves slower or faster than altcoins. both of them are volatile and sometimes stable. so don't worry too much about this because altcoin can be more volatile or more stable. it all depends on the current market conditions right?