The latest data point for WMT's PEG Ratio in Q4'26 stands at -1.80, indicating a negative valuation metric that suggests the stock may be undervalued relative to its earnings growth, though the negative value reflects potential challenges in growth projections or earnings stability. Over the period from Q1'24 to Q4'26, the PEG Ratio has exhibited high volatility, fluctuating between a low of -3.18 in Q1'25 and a sharp peak of 20.15 in Q3'25, with an overall trend leaning negative in seven out of ten quarters, pointing to inconsistent growth expectations; notable swings, such as the rapid decline from Q3'25's extreme positive to -3.13 in Q1'26, highlight sensitivity to market or operational factors, while brief positive readings in Q2'24, Q4'24, and Q2'26 offer limited signs of temporary optimism.