According to Michaël van de Poppe, he sold one altcoin after it surged by nearly 300% in a single day, locking in substantial profits from the rapid price movement. Van de Poppe emphasized the importance of taking profits during parabolic runs and hinted at a disciplined approach to reinvesting gains. This trading decision highlights the need for traders to monitor sharp altcoin rallies, secure profits promptly, and consider reinvestment strategies, especially as extreme volatility can signal short-term price reversals. Source: Michaël van de Poppe.