As of the latest data point for Q4'25, ISRG's PEG Ratio (5yr expected) stands at 4.81. This reflects a decrease from the previous quarter's value of 7.44, indicating a recent downward adjustment in the company's growth expectations relative to its earnings. Over the period from Q1'23 to Q4'25, the PEG ratio has exhibited significant volatility, with values ranging from a low of -37.09 in Q3'23 to a high of 46.90 in Q1'25. The chart shows multiple sharp swings, including negative PEG ratios in several quarters, suggesting periods of either negative earnings growth or shifting analyst forecasts. Despite these fluctuations, the ratio has generally returned to positive territory in the most recent quarters, though it remains well above its initial level at the start of the period.