As a blockchain analyst tracking NEM (XEM), I dissect its recent 26.79% price surge against USD, examining trading volume spikes (140.69% turnover rate) and volatility patterns. Using on-chain metrics from three market snapshots, I'll explain why this altcoin defied the broader crypto slump—with Python charts to visualize the 0.0016-0.00584 USD price range drama. Spoiler: someone's either accumulating or panic-selling.