Maybe you're newbie to the crypto cycle let me say it straight but when Bitcoin is falling usually almost all of the coins/tokens in the market does the same. The real reason was there are some whales already taking profits but after Bitcoin dominance keeps falling the alts will fly and probably it is showing some signs as the major altcoin (Ethereum) is taking some leads and it backs up again at $1700. This isn't some financial advice but historically this has been done before way back 2017, I wouldn't be surprised if some alts will make some new ATH.