A rare altcoin signal has emerged, indicating a potential onset of altseason, according to Coinbullet. This signal, characterized by only three MACD crosses in the past eight years, historically precedes significant altcoin price surges. Analysts anticipate a volatile market shift, with Ethereum (ETH) nearing a new all-time high, fueling optimism for a robust altseason. The crypto market has experienced notable fluctuations following a $20 liquidation event, sparking debate among analysts about future trends. Despite recent market resets, the signal shared by Merlijn The Trader on October 27, 2025, points to a possible rapid and chaotic rise in altcoin prices, suggesting a bullish outlook for the sector.