Bitcoin’s market share remains near the center of the altcoin debate, with the Coinglass Altcoin Season Index at 42 at press time. The index would need to exceed 75 to signal altcoin season, so the reading continued to favor Bitcoin.
CryptoRank data showed Bitcoin up 16.6% over the past 90 days, and only 31 coins on its list posted stronger gains. Bitway rose about 220%, Quant gained 184%, Midnight Network 172% and Raydium 152%, while Stacks and NEAR doubled.
Most large-cap altcoins lagged. Solana rose 10%, Binance Coin 10.6% and Chainlink 12% over the same 90-day stretch, according to the data.
Bitcoin dominance tests range top
At the time of writing, Bitcoin dominance stood at 60.9%. On the weekly chart, it has traded in a narrowing range for more than a year, with the upper boundary sliding since late 2025 and the lower boundary rising from around 57%, leaving the metric pressed against the top of the range.
The key levels are 61.5% on the upside and 58% on the downside. A move above 61.5% would keep Bitcoin in the lead and leave altcoins under pressure, while a rejection near 61% could give altcoins some room. A drop below 58% would mark a larger shift toward Ethereum and the wider market, according to the analysis.
Bitcoin dominance previously peaked at about 66% in mid-2025, well above the current level. Until the range resolves, the market may remain in a wait-and-see phase, with altcoin holders looking for a rejection at the 61% level.
