Friendly advice, if you have bought altcoin for a fair price, DON'T SELL now. We never know if you can see the dip for sure.
Binance is a huge platform, I don't believe that it will impact the prices for a while being. Instead, if you see some trend going with the altcoins, trade a few percentage of it and buy if it dips a little. Don't wait for a massive dip that we saw a couple of days back.
Hope you earn a good amount!