As of Q4'25, Domino's Pizza (DPZ) reported a gross margin of 39.95%, an operating margin that dropped sharply to nearly zero (0.01%), and a net profit margin of 12.18%. This marks a significant divergence between gross and operating profitability in the latest quarter, with the operating margin experiencing an unusual and dramatic decline. Over the period from Q1'23 to Q4'25, the gross margin has shown a steady upward trend, rising from 37.6% to nearly 40%. Operating margin, however, remained relatively stable around 17-19% until Q4'25, when it plummeted to almost zero, indicating a potential one-off event or extraordinary expense. Net profit margin fluctuated between 10% and 14% throughout the period, with no comparable collapse in Q4'25, suggesting that the sharp drop in operating margin may not have fully impacted net profitability yet or was offset by other factors. This pattern highlights overall margin improvement but raises concerns about the sustainability of operating profitability in the most recent quarter.