Is AptarGroup, Inc. overvalued or undervalued?

As of 12 June 2025, AptarGroup, Inc. has moved from an expensive to a very expensive valuation grade. The company is currently overvalued based on its financial ratios and peer comparisons. The P/E ratio stands at 28, significantly higher than the industry average of approximately 27.67, while the EV to EBITDA ratio is 15.02, which is also above the peer average of 14.67. Additionally, the PEG ratio of 3.61 indicates that the stock is priced at a premium relative to its growth prospects.
In comparison to its peers, International Paper Co. has a P/E of 29.86, and Amcor Plc has a P/E of 23.92, both of which suggest that AptarGroup is priced higher than many of its competitors. Furthermore, the company's dividend yield of 82.21% appears unusually high, raising questions about sustainability. Despite a recent positive return of 4.73% over the past year compared to the S&P 500's 10.26%, the overall valuation metrics suggest that AptarGroup, Inc. is not a compelling investment at its current price of 153.79.