As of Q4'25, LLY's PEG Ratio stands at -0.36, reflecting a notable decrease from the previous quarter. This latest figure marks a return to negative territory after a brief period of positive values earlier in 2025. Over the period from Q1'23 to Q4'25, the PEG Ratio for LLY has exhibited significant volatility, with sharp swings between negative and positive values. The ratio peaked at 21.51 in Q3'23 before dropping dramatically, including deep negative readings such as -24.13 in Q3'25. This pattern indicates considerable fluctuations in the company's growth expectations relative to its earnings, highlighting periods of both optimism and concern among analysts.