A daily market chart published by Matrixport on October 29, 2025 indicates the recent mini altcoin season is losing steam as Bitcoin dominance recovers. The widely watched Altcoin Season Index stands at 41, signaling a rotation of momentum back toward Bitcoin.
Bitcoin dominance measures BTC’s share of the total cryptocurrency market capitalization. When it rises, it typically suggests capital is flowing out of altcoins and into Bitcoin, often reflecting a more risk-averse market stance.
An Altcoin Season Index reading of 41 points to a mixed-to-Bitcoin-leaning environment rather than a full altcoin rally. By common methodology used in the industry, readings above 75 are often considered “altcoin season,” while significantly lower values tend to favor Bitcoin. For reference on the index framework, see BlockchainCenter’s explanation of the Altcoin Season Index (https://www.blockchaincenter.net/altcoin-season-index/).
Matrixport’s observation that the mini altseason is fading aligns with the index’s neutral-to-Bitcoin tilt. If Bitcoin dominance continues to climb, traders may see BTC outperforming a broad basket of altcoins in the near term. Conversely, a renewed drop in dominance could revive altcoin outperformance.
Conclusion
With the Altcoin Season Index at 41 and Bitcoin dominance recovering, market leadership appears to be shifting back toward BTC. Investors will be watching whether this trend strengthens or reverses as liquidity and macro drivers evolve.