ATR vs AMCR vs SEE vs SLGN

For growth investors, Silgan Holdings Inc.

(SLGN) is the stronger pick with 10. 7% revenue growth year-over-year, versus -0. 6% for Sealed Air Corporation (SEE). Sealed Air Corporation (SEE) offers the better valuation at 12. 3x trailing P/E (12. 4x forward), making it the more compelling value choice. Analysts rate AptarGroup, Inc. (ATR) a "Buy" — based on 18 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Sealed Air Corporation (SEE) is the cheapest at 12.

3x versus Amcor plc at 25. 0x. On forward P/E, Amcor plc is actually cheaper at 10. 0x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: AptarGroup, Inc. wins at 1. 71x versus Sealed Air Corporation's 9. 73x — a reasonable growth-adjusted valuation.

Over the past 5 years, Amcor plc (AMCR) delivered a total return of +320.

1%, compared to -19. 1% for Sealed Air Corporation (SEE). Over 10 years, the gap is even starker: AMCR returned +417. 0% versus SEE's +4. 4%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Sealed Air Corporation (SEE) is the lower-risk stock at 0.

31β versus Amcor plc's 0. 85β — meaning AMCR is approximately 170% more volatile than SEE relative to the S&P 500. On balance sheet safety, AptarGroup, Inc. (ATR) carries a lower debt/equity ratio of 56% versus 3% for Sealed Air Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Silgan Holdings Inc.

(SLGN) is pulling ahead at 10. 7% versus -0. 6% for Sealed Air Corporation (SEE). On earnings-per-share growth, the picture is similar: Sealed Air Corporation grew EPS 89. 5% year-over-year, compared to -36. 8% for Amcor plc. Over a 3-year CAGR, ATR leads at 4. 4% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

AptarGroup, Inc.

(ATR) is the more profitable company, earning 10. 4% net margin versus 3. 4% for Amcor plc — meaning it keeps 10. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ATR leads at 13. 6% versus 6. 7% for AMCR. At the gross margin level — before operating expenses — SEE leads at 29. 8%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, AptarGroup, Inc. (ATR) is the more undervalued stock at a PEG of 1. 71x versus Sealed Air Corporation's 9. 73x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Amcor plc (AMCR) trades at 10. 0x forward P/E versus 22. 0x for AptarGroup, Inc. — 11. 9x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ATR: 50. 3% to $188. 00.

All stocks in this comparison pay dividends.

Amcor plc (AMCR) offers the highest yield at 6. 6%, versus 1. 4% for AptarGroup, Inc. (ATR).

For long-horizon retirement investors, Sealed Air Corporation (SEE) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

31), 1. 9% yield). Both have compounded well over 10 years (SEE: +4. 4%, SLGN: +80. 8%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

These companies operate in different sectors (ATR (Healthcare) and AMCR (Consumer Cyclical) and SEE (Consumer Cyclical) and SLGN (Consumer Cyclical)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: ATR is a small-cap quality compounder stock; AMCR is a mid-cap income-oriented stock; SEE is a small-cap deep-value stock; SLGN is a small-cap deep-value stock. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.