A physical representation of Bitcoin, with the Bitcoin logo displayed on a laptop computer screen in the background, is shown in this photo illustration taken in Athens, Greece, on September 9, 2025. (Photo by Nikolas Kokovlis/NurPhoto via Getty Images)NurPhoto via Getty ImagesQMMM Holdings (NASDAQ: QMMM), a digital media and virtual apparel firm based in Hong Kong, experienced significant fluctuations in its stock on Tuesday after announcing a bold shift towards blockchain and artificial intelligence. Afte ...