The Altcoin Season Index remains near 22, keeping the market in "Bitcoin Season" for most of 2025.
A brief spike in November 2024 was the last time the index entered Altcoin Season territory above 75.
No breakout above the 40 level has occurred in 2025, indicating continued altcoin underperformance.
The altcoin season indicator has been well below the 75 mark since late 2024, a sign of persistent Bitcoin dominance. According to data charted by BlockchainCenter.net, the index has spent most of 2025 below the "Altcoin Season" threshold.
The reading is now at around 22, deep in the "Bitcoin Season," technically defined as levels of 25 and lower. The reading means that, at the moment, altcoins are trailing Bitcoin, according to the top 50 coins in a 90-day performance window.
Market Behavior Since Early 2025 Highlights Sustained Bitcoin Strength
During January to mid-June 2025, the altcoin season index has been below the 25-mark throughout. This time frame reflects Bitcoin's ongoing outperformance of the altcoins for nearly six straight months. It was remarkable how the index did reach a peak above 25 in early May but quickly retreated, again supporting the continuation of Bitcoin-led momentum.
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Late 2024 saw the index fluctuate higher towards the 75 level, hinting at a short-term reversal towards altcoin dominance. That advance proved unsustainable as the metric reversed sharply at the start of 2025. Volatility notwithstanding, the index trend generally was in the lower-third of the scale, indicating a prolonged Bitcoin Season.
Altcoin Season Line Remains Untested Since November Spike
The last attempt to reach Altcoin Season territory occurred in November 2024. At that time, the index surged to levels approaching 80, which briefly placed the market in the Altcoin Season. That move was short-lived, and the index returned below 50 by December. Since then, there have been no successful retests of the 75 threshold.
Since the beginning of 2025, every instance of an upward trend has failed to surpass the 40 marker. These circumstances are indicative of skinny performance in the altcoin space relative to the price behavior of Bitcoin. By the middle of June 2025, the market continues to trade below the 25 mark, which represents a sustained cycle of Bitcoin dominance.
Technical Zones Define Ongoing Market Bias
Two clear thresholds define current market structure: Altcoin Season begins above 75, while Bitcoin Season holds below 25. The sustained reading under 25 since March reinforces a market trend that favors Bitcoin. Despite minor spikes and dips, none have shifted the overall pattern.
Until the index moves above the neutral zone around 50, altcoins continue to lag in comparative performance. This pattern offers a measurable view of capital distribution within the digital asset sector, favoring Bitcoin for now.
