As of Q4'25 (2025-12-31), Pfizer's (PFE) Operating Cash Flow stands at $0, while Free Cash Flow is also reported at $0. This marks a significant drop from the previous quarter, where Operating Cash Flow was $4.6B and Free Cash Flow was $4B, indicating a sharp decline at the end of the period covered. Over the period from Q1'23 to Q4'25, both Operating and Free Cash Flow have exhibited considerable volatility, with several quarters showing negative values, particularly in Q2'23, Q2'24, and Q2'25. Notably, there were strong recoveries in Q3'24 and Q4'24, with Operating Cash Flow peaking at $6.7B and Free Cash Flow at $6.1B. However, the trend does not sustain, as both metrics fall to zero by Q4'25, suggesting potential one-off impacts or end-of-period adjustments. Overall, the chart reflects an unstable cash flow pattern with intermittent periods of strong performance followed by sharp declines.