Introduction
Bitcoin is the largest cryptocurrency by market capitalisation. However, the crypto market includes thousands of other digital assets, commonly known as altcoins. Have you ever wondered how much of the total crypto market belongs to Bitcoin compared with all other cryptocurrencies? This is where Bitcoin Dominance becomes important.
It is a metric that shows Bitcoin’s share of the total cryptocurrency market capitalisation. Traders and investors use it to understand Bitcoin’s relative position and observe changes in market sentiment.
Moreover, it can help identify periods when Bitcoin is outperforming altcoins or when other cryptocurrencies are gaining market share.
In this lesson, we will explain what Bitcoin dominance means, how it is calculated, why it changes, and how traders use it to understand market movements.
What is Bitcoin Dominance?
Bitcoin dominance, also known as BTC dominance or BTC.D, measures the percentage of the total cryptocurrency market capitalisation represented by Bitcoin.
In simple terms, it tells you how much of the overall crypto market’s estimated value belongs to Bitcoin.
For example, imagine the total crypto market has a market capitalisation of $2 trillion, while Bitcoin’s market capitalisation is $1 trillion.
In this case, Bitcoin dominance is 50%.
This means Bitcoin represents half of the combined market capitalisation included in the calculation.
However, remember that Bitcoin dominance measures relative market value. It does not directly show how much money investors have deposited into Bitcoin.
How is Bitcoin Dominance calculated?
It is calculated using a simple formula:
BTC Dominance (%) = (Bitcoin Market Cap ÷ Total Crypto Market Cap) × 100
Before understanding the calculation, let’s look at two important terms.
- Bitcoin Market Cap: Bitcoin’s current price multiplied by its circulating supply.
- Total Crypto Market Cap: The combined market capitalisation of all cryptocurrencies included by the data provider.
Example: Calculating Bitcoin Dominance
Suppose the crypto market has the following values:
| Market Information | Value |
|---|---|
| Bitcoin Market Cap | $800 billion |
| Total Crypto Market Cap | $2 trillion |
Now, apply the formula:
($800 billion ÷ $2 trillion) × 100 = 40%
Therefore, BTC dominance is 40%.
This means Bitcoin represents 40% of the total market capitalisation in this example, while the remaining 60% belongs to other included cryptocurrencies.
What does Rising Bitcoin Dominance mean?
When BTC dominance rises, Bitcoin’s market capitalisation is increasing relative to the combined market capitalisation of the rest of the tracked crypto market.
This can happen for several reasons.
1. Bitcoin Is Outperforming Altcoins
If Bitcoin’s price increases faster than the prices of other cryptocurrencies, its share of the total market may rise.
2. Investors Prefer Bitcoin
During uncertain market conditions, some investors may prefer Bitcoin over smaller or more speculative crypto assets. Consequently, Bitcoin may gain market share relative to altcoins.
3. Altcoin Prices Are Falling Faster
Bitcoin dominance can also increase when altcoin prices decline more sharply than Bitcoin’s price.
However, rising dominance does not always mean Bitcoin’s price is increasing. It may rise even when the broader crypto market is falling.
What does falling Bitcoin Dominance mean?
When Bitcoin dominance falls, Bitcoin represents a smaller percentage of the total tracked crypto market capitalisation.
This may happen when altcoins collectively outperform Bitcoin.
For example, if Ethereum, Solana, and other altcoins experience stronger price growth than Bitcoin, their combined market capitalisation may increase faster.
As a result, Bitcoin’s share of the total market becomes smaller.
A declining dominance trend is often associated with growing interest in altcoins. However, it does not automatically confirm an altcoin season.
Additionally, BTC dominance may fall when stablecoin market capitalisation increases or when the overall market changes.
What is Altcoin Season?
Altcoin season, commonly called altseason, is a market phase when many altcoins outperform Bitcoin over a particular period.
During such periods, investors may show greater interest in cryptocurrencies other than Bitcoin.
BTC dominance often declines during a broad altcoin rally because altcoins collectively gain market capitalisation relative to Bitcoin.
However, a falling BTC dominance figure alone is not enough to confirm altcoin season.
For a clearer picture, traders also examine:
- Whether multiple altcoins are outperforming Bitcoin.
- Whether the total altcoin market capitalisation is increasing.
- Whether trading volume supports the movement.
- Whether Bitcoin’s price is stable, rising, or falling.
Therefore, always look at the wider market rather than relying on one indicator.
Bitcoin Dominance and Market Conditions
BTC dominance becomes more useful when you compare it with Bitcoin’s price.
Here are four common situations:
| Bitcoin Price | Bitcoin Dominance | Possible Market Interpretation |
|---|---|---|
| Rising | Rising | Bitcoin is gaining relative strength over altcoins. |
| Rising | Falling | Altcoins may be outperforming Bitcoin. |
| Falling | Rising | Altcoins may be falling faster than Bitcoin. |
| Falling | Falling | Altcoins may be holding up better, or stablecoins may be gaining market share. |
These are possible interpretations, not fixed rules.
For example, falling BTC dominance does not always mean investors are moving directly into altcoins. Stablecoin growth can also reduce Bitcoin’s percentage of the total market.
Why does Bitcoin Dominance change?
Several factors can influence Bitcoin dominance.
1. Bitcoin Price Movements
When Bitcoin’s price changes, its market capitalisation changes as well. Consequently, its share of the total crypto market may rise or fall.
2. Altcoin Market Performance
When altcoins collectively grow faster than Bitcoin, Bitcoin dominance may decline. On the other hand, when altcoins underperform, dominance may rise.
3. Growth of Stablecoins
Stablecoins such as USDT and USDC are designed to maintain a relatively stable value against a reference currency, often the US dollar.
However, their circulating supply and market capitalisation can change. Since many market trackers include stablecoins in total crypto market capitalisation, their growth can influence Bitcoin dominance.
4. New Cryptocurrency Projects
New tokens and cryptocurrency projects can expand the number of assets included in the total market calculation.
As a result, the denominator in the Bitcoin dominance formula may change, affecting the percentage even if Bitcoin’s own market capitalisation remains unchanged.
How can traders use Bitcoin Dominance?
BTC dominance is a market analysis tool. It can provide additional context when used alongside other indicators.
Here are some common ways traders use it:
1. Understanding Market Sentiment
Traders observe whether Bitcoin or altcoins are gaining relative market share. This can help them understand broader market preferences.
2. Identifying Possible Altcoin Trends
A sustained decline in BTC dominance, combined with stronger altcoin performance, may indicate a shift towards altcoins.
3. Comparing Bitcoin and Altcoin Performance
Traders may compare BTC dominance with individual trading pairs, such as ETH/BTC, to understand whether an altcoin is gaining strength against Bitcoin.
4. Supporting Portfolio Analysis
Investors may monitor dominance to understand how the wider market is distributed between Bitcoin and other cryptocurrencies.
Nevertheless, BTC dominance should not be used as a standalone buying or selling signal.
Limitations of Bitcoin Dominance
Although BTC dominance is useful, it has some limitations.
- It does not measure actual money flow: Market capitalisation is calculated using price and circulating supply. Therefore, a change in dominance does not directly tell you how much money entered or left Bitcoin.
- Stablecoins can affect the reading: An increase in stablecoin market capitalisation can reduce BTC dominance without necessarily indicating stronger demand for altcoins.
- Different platforms may show different values: Data providers may include different cryptocurrencies or use different supply estimates and calculation methods.
- It does not predict future prices: Rising or falling dominance cannot guarantee what Bitcoin or altcoins will do next.
Therefore, compare readings from the same data provider and use other market indicators to support your analysis.
Common Mistakes to Avoid
Beginners often misunderstand BTC dominance. Here are some mistakes to avoid:
- Assuming rising dominance always means Bitcoin’s price is increasing.
- Treating falling dominance as confirmation of altcoin season.
- Believing that market capitalisation represents actual money invested.
- Ignoring the influence of stablecoins.
- Comparing readings from different platforms without checking their methodology.
- Making trading decisions using BTC dominance alone.
Instead, combine this metric with price trends, trading volume, market capitalisation, and other relevant indicators.
Frequently Asked Questions (FAQs)
1. What is Bitcoin dominance in simple words?
It shows how much of the total cryptocurrency market capitalisation belongs to Bitcoin, expressed as a percentage.
2. What happens when Bitcoin dominance increases?
An increase means Bitcoin’s market capitalisation is growing relative to the total crypto market. This may happen because Bitcoin is outperforming altcoins or because altcoins are declining faster.
3. What happens when BTC dominance decreases?
A decrease means Bitcoin represents a smaller share of the total crypto market. This may happen when altcoins outperform Bitcoin or when other included assets, such as stablecoins, grow.
4. Does low Bitcoin dominance mean altcoin season?
Not necessarily. A low or declining dominance reading may indicate that altcoins are gaining market share. However, traders should also check whether a broad group of altcoins is outperforming Bitcoin.
5. Where can I check Bitcoin dominance?
You can view Bitcoin dominance charts on platforms such as CoinMarketCap, CoinGecko, and TradingView. However, their readings may differ because they can use different market coverage and calculation methods.
Disclaimer: This article is for educational purposes only and does not provide financial or investment advice. Cryptocurrency markets are volatile and involve significant risks. Always conduct your own research before making financial decisions.