As of Q4'25, UPST's PEG Ratio (5yr expected) stands at -1.35, marking a significant drop from the previous quarter's value of 0.08. This latest data point reflects a return to negative territory after a brief positive period earlier in 2025. Analyzing the trend from Q1'23 to Q4'25, the PEG ratio has exhibited extreme volatility, with values swinging sharply between positive and negative. Notably, there was a dramatic spike to 8.56 in Q4'24, followed by a precipitous plunge to -1.33K in Q1'25, indicating substantial fluctuations in growth expectations relative to earnings. Overall, the data suggests a highly unstable valuation environment for UPST over the observed period.