How to Identify Altcoin Season (And How to Position)
By Menno — 13 years in crypto, 3 bear markets survived, zero paid promotions
Last updated: March 2026
Altcoin season begins when Bitcoin dominance falls from its cycle peak (typically 60–65%), the overall market is in an uptrend, and capital starts rotating from Bitcoin into mid and small cap altcoins. The four indicators that confirm altcoin season are: falling Bitcoin dominance, rising total altcoin market cap, increasing altcoin volume relative to Bitcoin, and the Altcoin Season Index reading above 75.
Key Takeaways
- •Altcoin season is driven by capital rotation — Bitcoin leads the cycle, then capital flows into Ethereum, large altcoins, mid caps, and small caps in sequence.
- •The four confirmation signals are: falling Bitcoin dominance, rising TOTAL2, increasing altcoin volume relative to Bitcoin, and Altcoin Season Index above 75.
- •The best altcoin entry points occur before altcoin season begins — position when individual risk scores are in the 0–25 range during late accumulation/early expansion.
- •Different coins peak at different times within altcoin season — manage exits per-coin based on individual risk scores, not the general season narrative.
- •Exit signals include Bitcoin dominance bottoming, TOTAL2 growth decelerating, and altcoin volume falling relative to Bitcoin — act on these before the exit becomes crowded.
What Altcoin Season Is and Why It Happens
Altcoin season is the phase of the crypto cycle when the majority of altcoins significantly outperform Bitcoin over a 30–90 day window. In the 2021 cycle, there was a defined altcoin season between February and May where the total altcoin market cap grew from roughly $350 billion to over $1.5 trillion while Bitcoin's price moved relatively sideways.
The structural driver is capital rotation. Early in a bull cycle, Bitcoin absorbs the majority of new market capital — it is the lowest-friction, most recognised entry point for both retail and institutional investors. As Bitcoin makes its initial major move, investors who missed the early Bitcoin gains search for higher-percentage opportunities in smaller assets. This capital flows into Ethereum first (as the second-largest asset), then into the broader altcoin market.
The rotation does not happen uniformly. It moves in tiers: large caps first (Ethereum, Solana), then mid caps (top 20–50), then small caps (top 50–200). Each tier's run typically lasts weeks before capital moves to the next. Understanding this sequence allows investors to be positioned in the right tier at the right time rather than chasing every move after it has started.
The 4 Signals That Confirm Altcoin Season Is Starting
Waiting for one signal before acting is too slow — by the time a single indicator confirms altcoin season, much of the early move has already occurred. The most reliable approach is to monitor four indicators together and act when the majority align:
When three of these four signals are active simultaneously, altcoin season is either beginning or underway.
How to Position Your Portfolio Before Altcoin SeasonPremium
The critical insight about altcoin season positioning is that the best entry points occur before the season begins — when Bitcoin is still dominating and most investors are focused on Bitcoin.
How to Manage Your Portfolio During and After Altcoin SeasonPremium
Included with the full lesson.
Frequently Asked Questions
How long does altcoin season typically last?▾
Historical altcoin seasons have lasted roughly 2–4 months at their most intense phase. The 2021 altcoin season ran from roughly February to May (3 months). Within that, individual coin runs were often much shorter — 2–6 weeks of strong outperformance before rotation to the next tier.
How do I know which altcoins will do best during altcoin season?▾
Narrative alignment is the most important factor — coins in the sector receiving the most developer activity and VC inflows typically lead. For the current cycle, those sectors include infrastructure (L2s, data availability), DeFi with real revenue, and AI-adjacent protocols. Individual coin risk scores are the timing filter within those sectors.
What if I miss the start of altcoin season?▾
Entering 2–3 weeks into an altcoin season is better than not entering at all, provided individual coin risk scores are still in the buy range. The risk is entering at mid-cycle when risk scores are already elevated — that is when chasing becomes genuinely dangerous. Check the risk score before any entry, regardless of market narrative.
Does every bull cycle have an altcoin season?▾
The 2017 and 2021 cycles had clearly defined altcoin seasons with broad altcoin outperformance. The 2020 cycle was more nuanced — DeFi had a defined season but broader small-cap outperformance was less uniform. The pattern is strong but not guaranteed, and its timing and breadth vary. The indicators are the guide, not the expectation.
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How to Use Bitcoin Dominance to Time Altcoin Entries
Bitcoin dominance measures Bitcoin's share of total crypto market cap. When dominance falls from a high level — typically dropping below 50–52% after peaking near 60–65% — it historically signals the start of altcoin outperformance. Understanding this cycle allows investors to shift allocations at the right time rather than chasing altcoin moves after they have already run.
The 4 Phases of a Crypto Market Cycle Explained
Crypto market cycles move through four repeating phases: accumulation (bear market bottom, low sentiment), expansion (early bull, rising prices), euphoria (peak sentiment, maximum overvaluation), and contraction (bear market, declining prices). Recognising which phase you are in determines what action to take — buying, holding, selling, or waiting.
Altcoin Risk Scoring Explained: How to Know When to Buy an Altcoin
Altcoin risk scoring assigns each coin a number from 0 to 100 based on multiple factors including the bi-weekly RSI, distance from the 4-year high, market cap, token unlock schedule, and project liquidity. A score near 0–15 historically marks a buy zone; a score near 80–100 marks a sell zone. The system removes emotion from altcoin decisions by turning complex multi-factor analysis into a single actionable number.
What Actually Drives Altcoin Price (And What Doesn't)
Altcoin prices are driven primarily by Bitcoin's price action, overall market liquidity conditions, narrative cycles, and token supply dynamics — not by fundamental project quality in the short term. Understanding these real drivers allows investors to make better timing decisions and avoid overpaying for quality during the wrong phase of the cycle.
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Get Full AccessNot financial advice. All content is for educational purposes only. Crypto investing involves significant risk. Always do your own research.