What is Bitcoin Dominance?
Bitcoin dominance (BTC.D) is Bitcoin's share of the total crypto market cap. What it means, how it's calculated, and what BTC.D spikes and drops tell traders.
Updated June 2026 ยท Reviewed by the PipeFlare team
Bitcoin dominance is Bitcoin's share of the total crypto market capitalization, expressed as a percentage
It tells you whether the crypto market is rotating capital into BTC or spreading it into altcoins
Category
Market metric
Difficulty
Beginner
Where you'll see it
TradingView charts (BTC.D ticker), CoinGecko/CoinMarketCap home pages, market-sentiment dashboards
First introduced
Bitcoin dominance became a widely tracked metric around 2013โ2014 as altcoins first gained meaningful market share
About bitcoin dominance
Bitcoin dominance is Bitcoin's share of the total crypto market capitalization, expressed as a percentage. It measures how much of all crypto value is held in BTC rather than altcoins, stablecoins, and other tokens. If total crypto market cap is $3 trillion and BTC is $1.8 trillion, BTC dominance is 60%. Traders track dominance on TradingView under the ticker BTC.D and on the global-view pages of CoinGecko and CoinMarketCap. The metric moves as capital rotates between BTC and altcoins โ a rising dominance line means the market is consolidating into Bitcoin, while a falling line means capital is flowing into altcoins, an environment traders call 'alt season'. For a live chart, see CoinGecko's global charts page linked below.
How it actually works
Bitcoin dominance is calculated by dividing Bitcoin's market cap by the sum of every tracked crypto asset's market cap, then multiplying by 100. Market cap in turn equals circulating supply ร price, so dominance shifts when either BTC's price or altcoins' prices move โ not just when investors actively rotate. This creates a common source of confusion: a rising BTC.D chart doesn't necessarily mean money is flowing into Bitcoin. It can also mean altcoins are dropping faster than BTC, or new altcoin supply is not entering the market as fast as Bitcoin's is. CoinGecko and CoinMarketCap each publish their own dominance number, which can differ by 1โ2 percentage points because they track different sets of tokens โ CoinGecko generally includes a broader long tail.
Start here
- 1Open CoinGecko's global charts or TradingView's BTC.D ticker for the live percentage.
- 2Note whether BTC.D is above or below its long-term average (roughly 45โ55% since 2017).
- 3Cross-check the trend โ is BTC.D rising or falling over the past 1 and 6 months?
- 4For altcoin allocation decisions, some traders use BTC.D crossing a specific level (e.g. dropping below 45%) as a rotation signal.
Strengths
- One number gives a fast read on whether the market is rotating into BTC or into altcoins.
- Publicly available and free โ no subscription required, and every major crypto data site tracks it.
- Historically, extreme BTC.D readings (very high or very low) have marked market inflection points that were visible in hindsight.
Common misunderstandings
- Stablecoins skew the number โ stablecoin market cap grew from ~$5B in early 2020 to over $200B by 2025, meaning BTC.D looks lower without any actual crypto rotation.
- BTC.D moving doesn't tell you whether the change came from BTC price moving, altcoins moving, or new token supply entering โ those imply different trading decisions.
- Dominance charts can be gamed as a narrative โ the metric doesn't have predictive power on its own, but traders often frame chart moves as if it does.
Common questions
What does Bitcoin dominance mean?
Bitcoin dominance is Bitcoin's percentage share of the total cryptocurrency market capitalization. If total crypto is $3T and BTC is $1.8T, dominance is 60%. It is one of the most-watched macro metrics in crypto because it tracks whether capital is rotating into Bitcoin versus altcoins.
How is Bitcoin dominance calculated?
Bitcoin dominance = BTC market cap / total crypto market cap ร 100. Market cap for BTC is circulating supply (around 19.9M BTC as of 2026) multiplied by the BTC price. Total crypto market cap sums every tracked coin's market cap. CoinGecko and CoinMarketCap each publish their own dominance figure, which can differ slightly because they track different sets of coins.
What is a high vs low Bitcoin dominance?
Bitcoin dominance has ranged from a low of ~35% in early 2018 (peak altcoin season) to a high of ~95% pre-2017 (before altcoins existed at meaningful scale). Since 2017 the long-term range has been roughly 40โ70%. Above 60% is typically viewed as 'BTC-heavy', below 45% as 'altcoin-heavy'.
Does rising Bitcoin dominance always mean investors are buying BTC?
No โ rising BTC dominance can mean any of three things: BTC price is rising faster than altcoins, altcoins are falling faster than BTC, or altcoin supply is expanding slower than BTC's. The chart alone doesn't distinguish these cases. Traders combining BTC.D with total market cap trends can infer more, but no single metric is definitive.
How do stablecoins affect Bitcoin dominance?
Stablecoins depress Bitcoin dominance because they add to the total crypto market cap without adding to BTC's share. USDT and USDC combined grew from a few billion to over $200B between 2020 and 2025. This means today's BTC.D of 60% is not directly comparable to a 60% reading from 2018, when stablecoins were negligible. Some traders now watch 'BTC dominance excluding stablecoins' for a more consistent metric.
What is 'alt season' in relation to BTC.D?
'Alt season' is a period where altcoins outperform Bitcoin, causing BTC.D to fall. Traders often mark the start of alt season when BTC.D breaks below key support (commonly 45โ50%) after a Bitcoin rally. Every crypto cycle since 2017 has had a similar rotation pattern: BTC leads, dominance falls as altcoins catch up, then the market corrects. Whether this pattern will repeat in future cycles is not guaranteed.
Sources
Related guides
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