from the last few days market trend of bitcoin and alt-coin have shown some inverse behaviour,from the last few days whenever bitcoin tried to get its speed almost all the alt-coin have fallen.
XRP-BTC
xrp-btc graph shows two major dip at the start of the 5th January and at the end of the 5th January.
BTC-USDT
it was the time time when Bitcoin was moving with the positive growth. clearly indicating that it may rule over the alt-coin if it moves with same flow.
And from the last few days most of the alt-coins with some good market cap are RED and down. while BTC is Green and up with almost 10%.