Altcoins Challenge Bitcoin as Altseason Gains Momentum

Key Insights:

• Altcoin dominance broke above a five-year descending trendline after repeated rejections since the 2021 cycle peak.
• Altcoin leverage dominance reached its highest level in 2.5 years, showing stronger speculative activity across alts.
• Altcoin market cap continues to hold a rising multi-year support trend as the broader crypto rotation gains traction.

Altcoins drew fresh attention as traders looked for rotation beyond Bitcoin. Current dashboard data showed improving breadth, but not a fully confirmed handoff, with CoinMarketCap’s Altcoin Season Index at 64/100 and Bitcoin dominance still at 58.6%.

That backdrop supports the idea that capital is spreading beyond Bitcoin, though the move remains incomplete. The key question is whether altcoins can sustain relative strength if Bitcoin dominance stays near current levels.

Altcoins Hold Interest as Bitcoin Dominance Stays Elevated

Crypto market capitalization, excluding Bitcoin, Ethereum, and stablecoins, has rebounded from a long-term ascending support line. The same broad structure supported earlier market bottoms in 2019 and 2022.

The market previously expanded by about 1,996% during the 2021-2022 cycle, rising sharply from its multi-year base before reaching the cycle peak. Meanwhile, the 2024-2025 cycle recorded a smaller 380% increase.