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The crypto market is showing early signs of an altcoin rebound, but key breadth indicators suggest it is still too soon to call a full-fledged 'altcoin season' as Bitcoin (BTC) continues to command the lion’s share of capital.
As of Monday UTC, CoinMarketCap’s Altcoin Season Index stood at 47, slipping from 48 a day earlier. While that reading is modestly improved from 47 a week ago and 45 a month ago, it remains well below the widely watched threshold of 75 that typically signals an 'altcoin season'. The index is calculated by measuring the share of top-100 altcoins by market capitalization (excluding stablecoins) that outperform Bitcoin over the past 90 days.
At 47, the gauge sits firmly in the 'neutral' band—between a 'Bitcoin season' (25 or below) and an 'altcoin season' (75 or above). Historically, the index’s annual high was 78 on Sept. 20, 2025, coming close to a broad altcoin-led phase, while the annual low was 14 on Dec. 19, 2025, reflecting a strong period of Bitcoin dominance.
The recent 90-day trajectory shows the index recovering from its Dec. 19, 2025 low back toward the mid-40s, indicating that relative performance gaps between BTC and larger altcoins have narrowed. However, the reading still implies that gains are not yet sufficiently widespread across the altcoin universe to confirm a broad rotation out of Bitcoin. Market analysts typically interpret this stage as a transition period where select tokens rally, but the move lacks the breadth that characterizes sustained altcoin cycles.
Market share data reinforces that interpretation. Bitcoin dominance remained unchanged at 58.1% compared with the prior week, signaling that overall capital positioning is still Bitcoin-centric. The share attributed to other altcoins edged down to 32.1% from 32.8%, while Ethereum (ETH) dominance rose to 9.8% from 9.2%, suggesting some incremental inflow toward ETH even as BTC retains clear leadership.
CoinMarketCap data showed Bitcoin’s market capitalization at roughly $1.27 trillion, with 24-hour trading volume near $37.34 billion. Aggregate altcoin market capitalization was about $1.00 trillion, with 24-hour trading volume around $51.14 billion.
TokenPost market data indicated that as of 7:12 a.m. ET on Monday, Bitcoin was trading at $63,304, up 0.66% from the prior day. BTC’s cumulative 90-day return was reported at -10.96%, underscoring that the current stabilization has not yet translated into strong medium-term momentum.