The latest data point for ON's PEG Ratio in Q4'25 stands at -1.04, indicating a negative valuation signal where the stock's price growth is not justified by earnings growth, following a volatile path from the chart's start in Q1'23 through Q4'25. Over this period, the PEG Ratio exhibits high volatility with no clear upward or downward trend, fluctuating between a low of -5.36 in Q4'23 and a peak of 23.04 in Q3'23, while recent quarters show smaller swings from -0.91 in Q1'24 to 1.04 in Q3'24 before settling into negative territory; Q2'25 has no data, but the overall pattern suggests inconsistent growth expectations for ON, warranting caution for analysts monitoring valuation metrics.