Altcoin Season Index
If 75% of the Top 50 coins performed better than Bitcoin over the last season (90 days) it is Altcoin Season.
Altcoin Season Index
It is not Altcoin Season!
37
Bitcoin Season
Altcoin Season
| Altcoin | Bitcoin | |
|---|---|---|
| Days since last Season | 356 | 16 |
| Average Days between Seasons | 67 | 21 |
| Longest Streak without Season | 486 | 308 |
| Average Length of Season (Days) | 17 | 10 |
| Longest Season (Days) | 117 | 126 |
| Total Days of Season | 416 | 956 |
Flip Calendar
Each day is colored from the live 90-day Altcoin Season Index (Bitcoin Season ≤25, Neutral 26–74, Altcoin Season ≥75). Click a day to jump the chart.
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Sep 2, 2026 · 27 · Neutral
Historical Performance
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Top 50 Performance over the last Season (90 days)
Altcoin Season Snapshot
Sep 17, 2026
blockchaincenter.net
Get notified if it's Altcoin Season
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If 75% of the Top 50 coins performed better than Bitcoin over the last season (90 days) it is Altcoin Season. Excluded from the Top 50 are Stablecoins (Tether, DAI…) and asset backed tokens (WBTC, stETH, cLINK,…)