It depends on the "Altcoin Season Index" which is a popular indicator. If:
More than 75% of the top 50 coins (excluding Bitcoin) have outperformed Bitcoin over the last 90 days → we are officially in "Altcoin Season".
📊 Current Situation (August 2025):
Altcoin Season Index = 43
This means we are not currently in Altcoin Season, but in a phase called "Bitcoin Season", where:
Most liquidity and investment is directed towards Bitcoin.
The performance of alternative coins is relatively weak compared to Bitcoin.
🧠 Reasons for the decline of Altcoin Season now:
1. Bitcoin dominance rising to about 61%.
2. A decline in institutional confidence in some alternative coins.
3. Global regulatory pressure on DeFi and NFT projects.
4. Market volatility caused by macroeconomic news and U.S. interest rates.
📈 Signs that may indicate the approach of Altcoin Season:
Bitcoin dominance falling below 45%.
A significant rise in ETH, SOL, ADA, and others.
Notable activity in Layer-2 projects, DeFi, and AI.
A strong return of trading volumes on alternative platforms.
📌 Tip:
If you are trading or investing in Altcoins, watch out for:
Weekly Altcoin Season Index from Blockchain Center
Bitcoin Dominance (BTC Dominance)
The performance of coins like ETH, SOL, and AVAX compared to BTC.