Altcoin Season Index Signals Growing Momentum Beyond Bitcoin

CoinGlass’s Altcoin Season Index has risen to 58, suggesting capital rotation may be broadening beyond Bitcoin, but it is still short of the 75 level that would confirm a true altcoin season. The move comes alongside volatile Bitcoin dominance, which fell from 58.12% to around 54% in early July before stabilizing near 56.3%. Market breadth is improving, with the share of altcoins outside Bitcoin, Ethereum, and stablecoins increasing from 19.39% to 24.68%. Still, analysts caution the signal is mixed: some of the altcoin-season readings may reflect Bitcoin weakness rather than genuine altcoin outperformance, and the recent strength appears concentrated in yield-bearing tokens and Solana-related assets. ETF flows also hint at rotation, with money moving into Ether, Solana, and XRP products while Bitcoin funds saw outflows.