ABYSS Index
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Is it altseason?

“Altseason” is when altcoins rise faster than Bitcoin. We measure it with a 0-to-100 index: for a basket of alts, how much each has returned versus BTC over the last 90 days. High (>75) = altseason; low (<25) = Bitcoin season.

Live answer
37/ 100Bitcoin-leaning

Bitcoin-leaning: over the last 90 days BTC is ahead of most alts.

20% of alts beat BTC over 90 days · n=5

Each alt's strength (90 days vs BTC)

50 = same as Bitcoin. Above, the alt beats BTC; below, it lags.

AssetStrengthvs BTC (90d)
SOL60.17750323374864+8%
DOGE36.51092221802329-11%
XRP36.162992016285806-11%
ETH32.4434661749783-15%
ADA18.482736780862957-30%

The framework: altseason bands

What each range of the index means. The highlighted band is today's.

IndexMeaning
0–25
Bitcoin season
BTC clearly dominates: Bitcoin season.
25–45
Bitcoin-leaning
◄ today
BTC is ahead of most alts.
45–55
Balanced
Neither alts nor BTC dominate.
55–75
Alt-leaning
Alts start to outperform BTC.
75–100
Altseason
Alts strongly beat BTC: altcoin season.

It's a 90-day relative-strength measure of an alt basket versus BTC, not a prediction. An altseason can start and stall; read it alongside cycle risk and dominance. Computed by us — redistributable.

Frequently asked questions

What is an altseason?

A period when altcoins rise faster than Bitcoin, i.e. they gain value against BTC. Our index quantifies it with the 90-day relative strength of an alt basket.

How do I know if it's altseason?

When the index is above 75 (most alts strongly beat BTC). Between 45 and 55 it's balanced; below 25 it's Bitcoin season. Today's value is above.

Does this predict the next altseason?

No. It measures the current state (90-day relative strength), not the future. It's educational information, not financial advice.

See the alts' cycle risk →Is Bitcoin at the top or the floor? →