In December 2025, Bitcoin's dominance remains above 60%, with institutional funds continuously flowing into BTC, while altcoins underperform due to liquidity shortages and regulatory uncertainties. Historical data shows that altcoin seasons typically occur 6-12 months after Bitcoin halving (i.e., May-September 2025), but the current macro environment (high interest rates, liquidity tightening) has delayed this cycle.

Recently, the US SEC approved spot ETFs for altcoins such as XRP and DOGE, which may inject new liquidity into the market, but the effects have not yet materialized. If the Federal Reserve shifts to rate cuts in 2026, risk appetite may rebound, driving altcoins to catch up.

Conclusion: The probability of an altcoin season in December is low; attention should be paid to policy changes in early 2026. In the short term, focus on BTC, and in the long term, consider deploying high-quality altcoins.