Altcoin Season Nears as Non-Bitcoin Cryptos Begin to Outperform BTC Recent market activity shows that altcoin season may be on the horizon as non-Bitcoin cryptocurrencies start to outperform Bitcoin (BTC). In the past 90 days, 15 of the top 50 altcoins have surpassed BTC’s performance, pushing the Altcoin Season Index up to 31—closer to the