ETH and BNB are altcoins which in my opinion have very good potential lately, especially altcoin BNB really shows a significant increase, many investors are investing BNB and many traders are trading these coins.
BNB has a lot of benefits offered by binance like staking, lending, direct trading pairs, margin trading, etc which creates a huge demand for this coin and a lot of traders find it suitable to trade with BNB on Binance platform to avoid hectic fees as trading with BNB has minimum fees. These phenomenons makes BNB more viral and the price keeps on hiking.