Altcoin Season 2026: Has It Started? The Signals Crypto Investors Are Watching Now
Altcoins are beginning to attract attention again as Ethereum, XRP and other cryptocurrencies recover alongside Bitcoin. But is the crypto market actually entering an Altcoin Season?
Not yet according to the widely followed BlockchainCenter Altcoin Season Index.
The 90-day Altcoin Season Index currently stands at 53. A reading of 75 or higher is required under this methodology for the market to qualify as an Altcoin Season.
However, the index has moved into neutral territory, suggesting that conditions are more favorable to altcoins than during a strong Bitcoin Season.
What Is Altcoin Season?
Altcoin Season, commonly called Altseason, is a period when a broad group of cryptocurrencies outside Bitcoin outperform BTC.
It does not simply mean that one or two altcoins are rising.
BlockchainCenter defines Altcoin Season as a period when 75% of the Top 50 cryptocurrencies outperform Bitcoin over the previous 90 days, excluding stablecoins and certain asset-backed tokens.
Where Is the Altcoin Season Index Now?
| Indicator | Current Reading |
|---|---|
| 90-Day Altcoin Season Index | 53 / 100 |
| Altcoin Season Threshold | 75+ |
| Bitcoin Season Zone | 25 or below |
| Current Classification | Neutral — Not Altcoin Season |
| Last Bitcoin → Neutral Flip | September 2, 2026 |
The market is not officially in Altcoin Season according to this indicator. A reading of 53 shows improving breadth, but it remains well below the required 75 level.
Bitcoin Dominance Is the Next Major Signal
Bitcoin currently controls approximately 57.2% of the total cryptocurrency market capitalization.
Ethereum represents approximately 11.1%, while stablecoins account for around 9.6%.
When Bitcoin dominance falls significantly while altcoins rise, it can indicate that capital is rotating from BTC toward the broader crypto market.
At the moment, Bitcoin dominance remains relatively high, meaning Bitcoin continues to hold a very large share of crypto capital.
Ethereum Is One of the Most Important Coins to Watch
Ethereum often plays an important role in discussions about altcoin cycles because it is the largest cryptocurrency outside Bitcoin.
ETH is currently trading around $2,750 and has risen roughly 14% over the previous seven days.
Ethereum dominance is currently around 11.1%.
If Ethereum begins consistently outperforming Bitcoin while Bitcoin dominance declines, that combination can provide stronger evidence of capital rotating toward altcoins.
Some Altcoins Are Already Outperforming Bitcoin
The market is not moving uniformly.
| Asset | Approx. Price | 7-Day Performance |
|---|---|---|
| Bitcoin (BTC) | $86,250 | +13.3% |
| Ethereum (ETH) | $2,749 | +13.9% |
| BNB | $785 | +9.2% |
| XRP | $1.57 | +21.0% |
This demonstrates why an Altcoin Season cannot be identified simply by seeing individual coins rise. A genuine broad altseason requires widespread outperformance relative to Bitcoin.
How Does Altcoin Season Usually Develop?
Crypto cycles do not always follow the same sequence, but traders often watch for a rotation similar to this:
- Bitcoin attracts the majority of new capital.
- BTC rises and Bitcoin dominance becomes strong.
- Bitcoin begins consolidating.
- Ethereum starts outperforming BTC.
- Capital rotates toward large-cap altcoins.
- Mid-cap cryptocurrencies begin gaining momentum.
- Risk appetite spreads toward smaller and more speculative tokens.
5 Signals That Could Confirm Altcoin Season
| Signal | What to Watch |
|---|---|
| Altcoin Season Index | Movement toward or above 75 |
| Bitcoin Dominance | Sustained decline |
| ETH/BTC | Ethereum strengthening against BTC |
| Altcoin Market Cap | Broad expansion beyond BTC |
| Market Breadth | Many major altcoins outperforming Bitcoin |
Does a Lower Bitcoin Dominance Guarantee Altseason?
No.
Bitcoin dominance can decline for different reasons, including changes in stablecoin market capitalization or weakness in Bitcoin itself.
For stronger confirmation, investors generally look for several signals occurring together: declining BTC dominance, rising altcoin market capitalization, improving ETH/BTC performance and broad altcoin outperformance.
Why Altcoin Season Can Be Extremely Risky
Altcoins generally carry substantially higher risk than Bitcoin. Smaller tokens can experience enormous rallies but can also lose a large percentage of their value very quickly.
- Lower liquidity.
- Higher volatility.
- Token unlocks and supply inflation.
- Smart-contract vulnerabilities.
- Project failure risk.
- Market manipulation.
- Rapid changes in investor narratives.
A previous altcoin rally also does not guarantee that the same cryptocurrency will perform well during another market cycle.
Altcoin Season FAQ
Has Altcoin Season started?
Not according to the BlockchainCenter 90-day Altcoin Season Index as of September 23, 2026. The index is 53, while 75 or higher is required for Altcoin Season.
Are altcoins getting stronger?
Some major altcoins are showing stronger performance, and the Altcoin Season Index has moved into neutral territory. However, performance remains mixed across the market.
What is Bitcoin dominance now?
Bitcoin dominance is approximately 57.2%.
What number confirms Altcoin Season?
Under BlockchainCenter's methodology, the index needs to reach at least 75.
Is Ethereum important for Altseason?
Ethereum is widely monitored because sustained ETH strength relative to BTC can be one sign that capital is rotating beyond Bitcoin.
Does Altcoin Season mean every altcoin rises?
No. Even during strong altcoin markets, individual cryptocurrencies can underperform or decline.
Conclusion: Is Altcoin Season Here?
As of September 23, 2026, the evidence does not yet confirm a broad Altcoin Season.
The Altcoin Season Index is at 53, well above Bitcoin Season territory but still below the 75 threshold required to classify the market as Altcoin Season.
At the same time, there are early signals worth monitoring. Ethereum and some major altcoins are showing strength, while the index has already moved into neutral territory.
The next signals to watch are Bitcoin dominance, ETH/BTC, the Altcoin Season Index and whether a growing number of major altcoins begin consistently outperforming Bitcoin.
In other words: the door to Altseason may be opening, but the market has not walked through it yet.
BlockchainCenter — Altcoin Season Index.
CoinGecko — Cryptocurrency prices and market capitalization.
CoinGecko — Bitcoin Dominance.
