$BNB BNB, the coin powering the multi-billion Binance ecosystem, is one of the top performers in the past week. The coin is firm, outpacing Bitcoin, Ethereum, and some of the best new coins to buy in 2025 in the last week of trading. Because of sustained gains over the last day, the coin is up double digits in the past trading week, adding 17%, cementing its position in the top 5 most valuable coins.