The latest data point for COST's Operation Income in Q2'26 shows $2.61B USD, reflecting a 12.5% year-over-year (YoY) increase from the prior year's quarter. This marks a sequential uptick of 5.7% from Q1'26's $2.46B USD, indicating sustained profitability momentum into the current period. Over the timeframe from Q3'23 to Q2'26, Operation Income has exhibited an overall upward trend, rising from $1.68B USD to $2.61B USD with notable peaks in Q4 periods (e.g., $3.34B USD in Q4'25). YoY growth has been consistently positive since Q4'23, averaging around 11-15% in recent quarters, though quarterly fluctuations occur—such as a dip to $1.98B USD in Q1'24—driven by seasonal factors, underscoring resilient operational performance in a bar chart visualization overlaid with YoY line trends.