Is AptarGroup, Inc. overvalued or undervalued?

As of 17 October 2025, AptarGroup, Inc. has moved from expensive to attractive, indicating a significant improvement in its valuation outlook. The company appears undervalued based on its current metrics, with a P/E ratio of 28, an EV to EBITDA of 15.02, and a PEG ratio of 3.61. In comparison to its peers, AptarGroup's P/E ratio is lower than Ball Corp.'s 38.35 and Avery Dennison Corp.'s 28.96, suggesting that it is trading at a discount relative to these competitors.
Despite recent stock performance lagging behind the S&P 500, with a year-to-date return of -17.67% compared to the index's 13.30%, the attractive valuation grade and favorable ratios indicate that AptarGroup may present a compelling investment opportunity at its current price of 129.34.