Alternative cryptocurrencies (Altcoins) have begun to outperform Bitcoin, according to today's CMC Altcoin Season Index which recorded 39/100 (Bitcoin season).
Bitcoin dominance at 61.53% (down 1.35 points over 7 days) and Altcoin Season Index at 39/100 (Bitcoin season) – alternative coins are gaining momentum as Bitcoin dominance declines
Ethereum leads the transformation – ETH rises 23.8% weekly after BlackRock's standard purchase of $499 million (Arkham)
Rise of meme and DeFi coins – XRP (+34.6% over 7 days), FLOKI (+41.7% over 7 days), CRV (+71.7% over 7 days) outperforming Bitcoin which rose by +6.4%
Detailed analysis
1. Bitcoin dominance declines as the Altcoin index rises
Bitcoin dominance has decreased to 61.53% (-1.35 points over the week), while the Altcoin Season Index has risen 85.7% over 30 days to reach 39/100. Although the market is still in 'Bitcoin Season', this represents the fastest momentum for alternative coins since April 2025 (CMC Altcoin Season Index).
What does this mean? Capital is shifting from Bitcoin to some selected alternative coins, but we have not yet reached full 'Altcoin Season' levels.
2. Ethereum system leads the transformation
Ethereum rose 23.8% weekly (compared to 6.4% for Bitcoin) after BlackRock's purchase of $499 million in ETH – their largest daily purchase ever. The volume of ETH futures contracts now equals 98% of Bitcoin's volume, indicating increasing institutional interest (The Block).
What does this mean? ETH's outperformance suggests that 'smart money' is betting on decentralized finance (DeFi) and Layer 2 (L2) systems instead of relying solely on Bitcoin as a store of value.
3. Rise of high-risk alternative coins
XRP (+34.6%), FLOKI (+41.7%), and CRV (+71.7%) led weekly gains, supported by:
XRP recovers to a market value of $194 billion
FLOKI's Valhalla game achieves a million transactions on opBNB
CRV's technical breakout above the resistance level at $0.77
What does this mean? Risk appetite is returning as traders seek out alternative coins that offer new stories (like tokenized real-world assets RWA and gaming) not present in Bitcoin.
Summary: Alternative coins are gaining ground
While Bitcoin remains the dominant currency, institutional adoption of Ethereum and the rise in trading volume of alternative coins signal an expansion in market activity. Watch the CMC Altcoin Season Index – surpassing the 50/100 level will confirm the start of full Altcoin Season. For now, ETH and sector leaders offer the best profit opportunities in this transitional phase.
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