QMMM shares tumbled nearly 60% in premarket trading after soaring 1,737% on Tuesday following news of a $100 million crypto treasury plan involving Bitcoin, Ethereum, and Solana. The surge valued the Hong Kong firm at $11.8 billion, despite its core ad-tech and virtual apparel business. Retail chatter remains 'extremely bullish,' but some traders warn of a pump-and-dump, predicting a slide to $30.