Key Takeaways:

  • Altcoin season indicators surge to 66-76, highest since December 2024

  • BTC dominance dips to 57.35%, altcoin momentum up 131% monthly

  • Ethereum ETF inflows hit $172M, whale accumulation boosts ETH

Altseason indicators hit 66-76 this week as altcoins outperformed Bitcoin, signaling rising trader confidence and institutional interest in digital assets.

Altcoin Season Indexes Reach 2025 High
Altcoin season signals intensified this week, with the Blockchain Center and CoinGlass indices both registering a score of 76, the highest since December 2024. CoinMarketCap’s Altcoin Season Index also hit 66-67/100 today, confirming sustained altcoin outperformance against Bitcoin over recent months.

 

Market Context and Altcoin Momentum
Bitcoin dominance dipped slightly to 57.35%, while the Altcoin Season Index surged 131% monthly, reflecting growing altcoin market share. Ethereum (ETH) leads institutional rotation, with ETH ETF inflows hitting $172 million on September 11 and whale investors adding 43,377 ETH this week.

 

Market Outlook
Analysts and traders are now closely watching the Federal Reserve’s actions on September 17, with significant divergence in opinions of how large of a rate cut will take place. According to analysts, a 50 basis point cut potentially would accelerate the altcoin rally that market indicators suggest is already underway.