Altcoin spot trading volumes on centralized exchanges have plunged to their lowest levels since October 2025, with a significant 85% drop as investors pivot towards Bitcoin amid ongoing economic uncertainty. Data from CryptoQuant highlights a stark decline in altcoin interest, with volumes on Binance, the largest exchange by volume, falling to $7.7 billion from the $40-50 billion range seen earlier in 2025. The shift marks a departure from previous expectations of an 'altcoin season,' as capital reallocates to Bitcoin, driven by geopolitical tensions and a challenging macroeconomic environment. Binance now holds 40% of the altcoin trading market share, followed by MEXC, Bybit, and OKX. Bitcoin remains in a consolidated range around $70,000, reflecting a broader market correction from its peak above $126,000.