Real-time index tracking 8 major altcoins vs BTC over 90 days. Liquid State systematic regime label. Free and embeddable.
Market data and information, never financial advice.
Index ScoreAltcoin Leaning
63
0 = BTC season · 100 = alt season
Outperforming BTC
5/8
Tracked alts, trailing 90 days
BTC 90d Return
-0.1%
The benchmark every alt must beat
Top Alt — LINK
+20.8%
Best 90d return in the basket
History Depth
8.1Y
Daily scores since 2018-08-02
Altcoin Leaning
Based on 8 major alts vs BTC over 90 days
BTC SEASONALT SEASON
Index history — trailing 1Y
ALT SEASON 13% of days365 daily scoresBTC DOMINANCE 62% of days
Altcoin Leaning: What this means for systematic traders
More than half of tracked altcoins have outperformed BTC over 90 days. Systematic frameworks interpret this as a transitional phase where risk appetite is expanding beyond Bitcoin.
Historical performance data. Not financial advice. Past performance does not predict future returns.
Historical contextAltcoin seasons have historically lasted 2–6 months and followed periods of Bitcoin accumulation and consolidation. The index uses 90-day relative performance as its primary signal, which smooths short-term noise while capturing meaningful medium-term regime shifts.
Frequently asked questions
What is the Altcoin Season Index?
The Altcoin Season Index tracks 8 major altcoins against BTC over a trailing 90-day window. When 6 or more of the 8 tracked altcoins have outperformed BTC over that period, the index reads "Altcoin Season" — a phase that historically accompanies broad market risk expansion and increased altcoin momentum.
What do the four regime labels mean?
"Altcoin Season" means 6 or more of 8 tracked altcoins outperformed BTC over 90 days. "Altcoin Leaning" means more than half outperformed. "Bitcoin Leaning" means most alts underperformed BTC. "Bitcoin Dominance" means fewer than 25% of tracked altcoins outperformed BTC — a strong Bitcoin-dominant phase with broad relative alt weakness.
Why does the index use a 90-day window?
The index uses 90-day relative performance as its primary signal because it smooths short-term noise while still capturing meaningful medium-term regime shifts. Altcoin seasons have historically lasted 2–6 months and followed periods of Bitcoin accumulation and consolidation.
Is the Altcoin Season Index financial advice?
No. The index presents historical performance data and a systematic regime label — it is market information, not financial advice, and past performance does not predict future returns.
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