Since mid-September, the total market capitalization of cryptocurrency has fallen from over $4 trillion to $3.82 trillion, while Bitcoin's dominance has increased from 57.3% to nearly 59%, indicating that altcoins have declined faster than Bitcoin. The altcoin quarterly index has dropped to 69 points, below the threshold of 75 points, and market sentiment has turned to panic. Analysts warn that a BTC.D breakout above 59% could delay the arrival of the altcoin quarter, although some investors remain optimistic that a potential rate cut by the Federal Reserve and the approval of altcoin ETFs could trigger a future rebound.