"Is it alt season yet?" might be the most-asked question in crypto, and the most badly answered โ usually with vibes, a screenshot, and someone's bag talking. An alt season indicator exists to replace that with a measurement: a single 0-100 reading of whether capital is actually rotating from Bitcoin into altcoins. This post explains how the Alt Season Score is built, what feeds it, and โ just as important โ what it deliberately refuses to make up.
Why you need an alt season indicator, not vibes
Alt season is a real phenomenon: stretches where altcoins broadly outperform Bitcoin as capital rotates down the risk curve. The problem is that humans are terrible at detecting it in real time. Two green days on your favorite alt feel like the start of a new era. A week of chop feels like Bitcoin season forever. Memory is short, bags are biased, and Twitter declares alt season roughly every other Tuesday.
A measurement fixes the frame. Instead of "does it feel alty out there?", you ask: relative to how this market has actually behaved, how strong is the evidence of rotation right now? That's a question with a checkable answer. It won't be a perfect answer โ no indicator is โ but it's consistent, it's the same yardstick every day, and it doesn't care what you're holding.
What a composite regime score actually is
The Alt Season Score is a composite regime score. Each of those words is doing work.
Composite means it blends several independent signals rather than trusting one. Any single metric can mislead โ a composite asks multiple witnesses the same question and scores the agreement.
Regime means it describes the market's prevailing state, not the next candle. Regimes are the weather, not the forecast: knowing it's rainy season doesn't tell you whether it rains at 3pm, but you'd still pack differently.
Score means the output is normalized to a 0-100 scale so it's comparable over time. The raw inputs live on completely different scales; the score puts them in one language.
The components behind the alt season indicator
The score draws on a few families of evidence, each answering the rotation question from a different angle:
- Bitcoin dominance direction. Dominance is Bitcoin's share of total crypto market value. When it falls while the overall market holds up or rises, capital is flowing proportionally toward alts. Direction and persistence matter more than any single level.
- Breadth of alt outperformance. What share of altcoins are actually beating Bitcoin over a recent window? A genuine alt season is broad โ many alts outperforming โ not one token going vertical while the rest bleed. Breadth separates rotation from a lottery winner.
- Momentum of the alt basket. Is a representative basket of alts gaining against BTC with any persistence, or just twitching? Rotation that lasts shows up as sustained relative momentum, not a single spike.
Each component is measured, normalized, and blended into the composite. No single input can drag the score to an extreme on its own โ which is the point. One witness can lie; it's harder for all of them to lie in the same direction.
The honest-data rule: proxies and N/A over invented numbers
Here's the part most indicator write-ups skip. Some of the cleanest inputs for this job โ long, deep histories of Bitcoin dominance and total-altcoin-market value โ aren't freely available at full depth. Free tiers are shallow; the deep archives sit behind paywalls.
The Alt Season Score handles that honestly rather than quietly. Where clean history isn't available, the platform uses basket-index proxies โ indices constructed from real exchange data the platform can verify โ and labels them as proxies right on the page. And where a component simply can't be computed from real data, it shows N/A instead of a synthetic guess.
That's a deliberate design rule across WenMoonLambo, the same one behind Signal Nexus: real data, clearly labeled, or an honest "not available." A regime score built on invented inputs would still produce a confident-looking number every day. It would just be decoration.
How to read the score: Bitcoin season, chop, alt season
The scale reads like a thermometer for rotation:
- Low readings โ Bitcoin season. Capital is concentrated in BTC. Alts broadly underperform, breadth is thin, and dominance is flat or climbing.
- High readings โ alt season. The evidence of rotation is strong across components: dominance falling, breadth wide, the alt basket showing persistent relative momentum.
- The middle โ chop. The honest zone, and the most common one. Mixed signals, partial rotation, sector-specific moves that never broaden. The middle is the score telling you the market hasn't picked a regime โ which is real information, even if it's not exciting.
Watch the trajectory as much as the level. A score grinding upward for weeks tells a different story than one that spiked once and faded.
And the crucial caveat: a regime score is decision support, not a starting gun. A high reading doesn't mean "buy alts now" โ it means the environment currently favors alts, according to a fixed, transparent yardstick. Regimes can end abruptly. Composites can lag at turning points; that's the price of measuring persistence instead of noise. The score tells you what the weather is. What you do in that weather is a separate decision, with its own risk management attached.
The bottom line
An alt season indicator won't call tops, pick coins, or replace judgment. What it does is smaller and more useful: it turns the loudest vibes-question in crypto into a fixed, honest measurement โ real components, labeled proxies, N/A where the data doesn't exist โ so you can see where the market sits on the rotation spectrum without asking your bags for their opinion.
Check the current reading on the Alt Season Score page, and if you want to act on a regime view, pressure-test the idea with play money on a free practice account first. Measurement before conviction, practice before stakes.
Nothing here is financial advice. WenMoonLambo is a paper-trading platform โ all trading happens with play money on real market data.