The latest data point for RKLB's Return on Sales (ROS) in Q4'25 shows a value of -11.5%, marking a substantial improvement from the more negative figures observed earlier in the fiscal year. This represents the least negative ROS in the series, indicating a narrowing of losses relative to sales in the final quarter of 2025. Over the period from Q2'23 to Q4'25, RKLB's ROS has exhibited a volatile yet overall improving trend, starting at -71.5% and fluctuating between -80.1% in Q4'23 and -37.7% in Q3'25, before reaching -11.5% in Q4'25. Early quarters displayed deep losses with no positive values, but a clear pattern of gradual recovery emerged from Q1'24 onward, with significant inflection points including a peak loss in Q4'23 and steady narrowing thereafter, suggesting operational efficiencies or revenue growth outpacing costs. The area chart highlights this progression toward breakeven, though Q1'26 has no data available.