Altcoin Season Index Has Crashed To 29 After Its September 2025 Highs

(*29*)

Back in September 2025, the Altcoin Season Index, which tracks the efficiency of the highest 100 altcoins in opposition to that of Bitcoin, had reached a brand new yearly peak. This rise had triggered optimistic sentiment available in the market, with requires the altcoin bull run to lastly start. However, the tide has since turned, and hopes for one more altcoin season have been dashed. Now, the index has crashed again downward, transferring towards its yearly lows.

Altcoin Season Index Falls To 39 From 78

The Altcoin Season Index on the CoinMarketCap web site has declined to a rating of 29, representing an over 50% crash from its September highs. Back then, the Altcoin Season Index had climbed to a score of 78, suggesting that altcoins have been in a bull market. However, this transfer was short-lived with the market crash that adopted, particularly within the month of October.

This index takes into consideration how the highest 100 altcoins by market cap have carried out in opposition to the Bitcoin value over a 90-day interval and makes use of it to attain the chart. The extra altcoins are outperforming Bitcoin throughout this timeframe, the upper the rating on the index.

A rating of 29 implies that solely 29 altcoins of the highest 100 have seen higher efficiency compared to the Bitcoin price over this 90-day interval. The likes of Binance-backed ASTER and ZCASH’s ZEC lead this listing after seeing an over 900% improve every throughout this time.

Interestingly, the Ethereum value seems within the listing of altcoins outperforming the market leader, coming in with a 5.18% improve for ETH in comparison with the 4.32% decline suffered by Bitcoin on the time of writing.

What This Means For Altcoins

The present rating of 29 on the Altcoin Season Index represents the poor efficiency of altcoins over the previous couple of months, as they have been particularly rocked by the October 10 crash. However, this isn’t fully dangerous information for the altcoin market, going by historical performance.

Looking again, a bull run has all the time begun when the index falls to low ranges. Before the September 2025 rally, the Altcoin Season Index had fallen beneath 40 earlier than marking a backside. Thus, the present low index rating, coupled with market sentiment declining into worry, could suggest that a bottom is close.