According to Cas Abbé, altcoin dominance has printed its biggest bullish divergence, while Bitcoin (BTC) dominance formed a large bearish divergence and has already declined, pointing to a potential Q4 rally in altcoins. source: Cas Abbé on X, Sep 5, 2025. Abbé frames this as a rotation signal away from BTC toward altcoins with expectations of altcoin outperformance into Q4, relevant for positioning and timing for traders focused on altseason setups. source: Cas Abbé on X, Sep 5, 2025.