Bitcoin News Today: Altcoin Season Index Surges 315% as Bitcoin Dominance Drops to 62%

The altcoin season is gaining momentum as Bitcoin's dominance in the market has declined to approximately 62%. This shift has led to a rotation of capital into other digital assets, with many top altcoins outperforming Bitcoin. The Altcoin Season Index, which tracks the performance of the top 50 coins against Bitcoin over the last 90 days, has been steadily rising. In June 2025, the index was around 12, indicating a bearish trend. However, by mid-July 2025, it had increased to approximately 32, signaling a turning point towards a bullish trend. As of July 18, 2025, the index stood at 49, showing strengthening momentum. Although the index has not yet reached the 75 mark required for a confirmed altcoin season, the upward trend suggests growing confidence in the altcoin market.

Ethereum has been a notable performer, surging past the $3,400 mark with substantial volume and increasing interest across derivatives markets. Technical analysts have identified bullish cup-and-handle formations for the total altcoin market cap (TOTAL3), which typically precede further gains. The increasing ETH-BTC ratio also indicates that Ethereum is gaining strength relative to Bitcoin, a trend that often correlates with other altcoins increasing their relative strength to Bitcoin.

Veteran analyst Peter Brandt recently shared a Bitcoin dominance chart showing clear rejection of resistance, stating, “It’s altcoin season.” Reddit users have also noticed this change, with one user commenting, “Alt season determines BTC dominance, not the other way around.” Across social platforms, sentiment is turning cautiously bullish, with many traders waiting for a few more signals before committing fully.

Several key signals could confirm the start of a full altcoin breakout phase. These include Bitcoin dominance falling below 60%, the Altcoin Season Index crossing 75, and major altcoins like Ethereum, Solana, XRP, and SUI maintaining momentum. Analysts also recommend watching TOTAL3 charts and volume trends, as a breakout in the overall altcoin market cap could support a larger rally.

Based on the latest research, the altcoin season is in its early stages. Bitcoin dominance is slipping, major altcoins are gaining ground, and market indicators are turning bullish. While confirmation is still pending, the setup is becoming more favorable for altcoin rallies. Traders should remain vigilant, closely follow key signals, and effectively manage risk as the market unfolds.