AZZ vs KALU

For growth investors, Kaiser Aluminum Corporation (KALU) is the stronger pick with 11.

5% revenue growth year-over-year, versus 4. 6% for AZZ Inc. (AZZ). AZZ Inc. (AZZ) offers the better valuation at 14. 4x trailing P/E (22. 1x forward), making it the more compelling value choice. Analysts rate AZZ Inc. (AZZ) a "Buy" — based on 12 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, AZZ Inc.

(AZZ) is the cheapest at 14. 4x versus Kaiser Aluminum Corporation at 28. 2x. On forward P/E, Kaiser Aluminum Corporation is actually cheaper at 18. 5x — 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: AZZ Inc. wins at 0. 47x versus Kaiser Aluminum Corporation's 0. 61x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, AZZ Inc.

(AZZ) delivered a total return of +189. 4%, compared to +60. 3% for Kaiser Aluminum Corporation (KALU). Over 10 years, the gap is even starker: AZZ returned +166. 5% versus KALU's +153. 5%. 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), AZZ Inc.

(AZZ) is the lower-risk stock at 1. 18β versus Kaiser Aluminum Corporation's 1. 86β — meaning KALU is approximately 57% more volatile than AZZ relative to the S&P 500. On balance sheet safety, AZZ Inc. (AZZ) carries a lower debt/equity ratio of 5% versus 136% for Kaiser Aluminum Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Kaiser Aluminum Corporation (KALU) is pulling ahead at 11.

5% versus 4. 6% for AZZ Inc. (AZZ). On earnings-per-share growth, the picture is similar: AZZ Inc. grew EPS 486. 6% year-over-year, compared to 135. 9% for Kaiser Aluminum Corporation. Over a 3-year CAGR, AZZ leads at 7. 6% 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.

AZZ Inc.

(AZZ) is the more profitable company, earning 19. 2% net margin versus 3. 3% for Kaiser Aluminum Corporation — meaning it keeps 19. 2% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AZZ leads at 16. 3% versus 5. 7% for KALU. At the gross margin level — before operating expenses — AZZ leads at 23. 9%, 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, AZZ Inc. (AZZ) is the more undervalued stock at a PEG of 0. 47x versus Kaiser Aluminum Corporation's 0. 61x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Kaiser Aluminum Corporation (KALU) trades at 18. 5x forward P/E versus 22. 1x for AZZ Inc. — 3. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for AZZ: 1. 7% to $153. 50.

All stocks in this comparison pay dividends.

Kaiser Aluminum Corporation (KALU) offers the highest yield at 1. 6%, versus 0. 5% for AZZ Inc. (AZZ).

For long-horizon retirement investors, AZZ Inc.

(AZZ) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 18), 0. 5% yield, +166. 5% 10Y return). Kaiser Aluminum Corporation (KALU) carries a higher beta of 1. 86 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (AZZ: +166. 5%, KALU: +153. 5%), 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 (AZZ (Industrials) and KALU (Basic Materials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: AZZ is a small-cap deep-value stock; KALU is a small-cap quality compounder 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.