🕒 *When Does Altcoin Season Start?*

Altcoin season usually starts *after Bitcoin experiences a significant strengthening phase* and enters consolidation (prices move sideways). When investors feel that BTC prices are "too high" or have stagnated, they begin to divert funds to altcoins that have higher potential for increase.

Usually:

- Occurs *after BTC dominance starts to decline*

- Occurs after BTC reaches *ATH (all-time high)*

- Can be triggered by *positive news on altcoin projects*

📊 *How to Know Altcoin Season is Happening?

1. *Decrease in BTC Dominance (%)*

If Bitcoin's dominance over the total market cap drops significantly (usually from >50% to <45%), it signals that altcoins are starting to strengthen.

2. *Altcoin Market Cap Rises Rapidly*

The total market capitalization of altcoins (excluding BTC) increases sharply.

3. *Altcoin Season Index*

Websites like Blockchain Center have an "Altcoin Season Index". If the number is >75, it means it is altcoin season.

4. *Many Altcoins Rise 2x–10x*

During altcoin season, it's not just the top 10, but small altcoins (low cap) can also surge quickly.

5. *Altcoin Trading Volume Increases*

If a lot of transaction volume shifts from BTC to ETH, SOL, ADA, etc.

📌 Tips During Altcoin Season:

- Don't FOMO (fear of missing out)

- Focus on projects with strong fundamentals

- Always set a take profit target

- Take advantage of sector rotation (AI, L2, DeFi, NFT, etc.)