Glassnode reports that the altcoin cycle signal has officially shifted from Bitcoin dominance to altcoin season. The on-chain analytics firm indicates a structural change in market dynamics as capital rotation accelerates toward alternative cryptocurrencies. While altcoins remained relatively flat during Bitcoin's price fluctuations in the August rally, today's market movement has fully ignited the altcoin sector. This broad-based participation marks a distinct departure from previous weeks where Bitcoin led market performance in isolation.