Altcoin season index has dropped to 12 which is the lowest level seen since June two years ago
Previous June readings like 2019 and 2023 also saw this number before altcoins gained strength again
Market watchers now look at July to confirm if the pattern may lead to a strong altcoin breakout soon
The Altcoin Season Index has dropped to 12 this June, marking the lowest reading in two years and echoing past cycle lows. According to the data shown, this decline closely aligns with historical lows previously seen in June 2019, 2020, 2022, 2023, and 2024. The current reading signals Bitcoin dominance and minimal altcoin momentum at this stage.
Source: X
This sharp downturn of the altcoin index has triggered renewed interest among crypto watchers. Many believe such lows often precede strong altcoin movements later in the year. The pattern raises a recurring question among investors—will this lead to another altseason soon?
Posted by analyst Michaël van de Poppe on June 22, 2025, the chart shows a cycle that appears consistent year after year. The chart, sourced from BlockchainCenter.net, confirms this year’s dip mirrors similar declines in prior mid-year months. The reading of 12 now sits deep within the “Bitcoin Season” zone.
Pattern Repeats Across June in Multiple Years
Historical analysis points to a consistent pattern of the Altcoin Season Index bottoming in June. Data presented alongside the 2025 chart outlines similar lows for five other Junes over six years.
In June 2019, the index dropped sharply as Bitcoin led the broader market while altcoins struggled to gain traction. A similar dip followed in June 2020, just before the post-halving surge that brought altcoin rallies across the board.
June 2022 and 2023 continued the sequence, each displaying sharp drops to levels below 25. These periods marked transitional phases where Bitcoin outperformed while altcoins moved sideways or lower.
The repeated timing suggests a possible cyclical element tied to investor sentiment, macro trends, or halving-linked consolidation periods. Observers now question whether June 2025 follows the same roadmap with altcoin recovery on the horizon.
Altcoin Season Index Now Deep in Bitcoin Territory
The current reading of 12 sits far below the 25-point threshold required to exit “Bitcoin Season” territory. Historically, such readings have preceded renewed strength for altcoins within weeks or months.
According to BlockchainCenter’s model, a score below 25 typically reflects declining interest in altcoins relative to Bitcoin. This metric tracks performance of the top 50 altcoins against BTC over a 90-day span.
During these phases, capital often consolidates into Bitcoin before rotating back into lower market cap tokens. Such rotations have historically kicked off altseasons that push altcoins to outperform the market.
With the index now at its lowest point since 2023, many traders are preparing for a possible sector-wide shift. Past cycles suggest this level may indicate a bottom before a broad rally.
Could June’s Drop Mark the Start of a New Altseason?
The key question now is whether June’s drop to 12 signals an upcoming altseason similar to past cycles. Patterns from previous years suggest that sharp June declines often lead to renewed altcoin activity.
The years 2020 and 2021 serve as examples where summer lows transitioned into major altcoin rallies by Q3. Analysts and investors are now watching for similar signs as the market digests the current structure.
While Bitcoin remains dominant, traders continue monitoring for metrics like volume spikes and rising dominance among top altcoins. The coming weeks will likely reveal whether this June’s drop is again a reliable altseason indicator.
