CPSH vs KALU vs CENX vs CSTM vs AA

For growth investors, CPS Technologies Corporation (CPSH) is the stronger pick with 54.

3% revenue growth year-over-year, versus 4. 5% for Alcoa Corporation (AA). Alcoa Corporation (AA) offers the better valuation at 14. 2x trailing P/E (8. 8x forward), making it the more compelling value choice. Analysts rate Constellium SE (CSTM) a "Buy" — based on 17 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, Alcoa Corporation (AA) is the cheapest at 14.

2x versus CPS Technologies Corporation at 145. 4x. On forward P/E, Century Aluminum Company is actually cheaper at 5. 9x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, Century Aluminum Company (CENX) delivered a total return of +265.

2%, compared to -33. 1% for CPS Technologies Corporation (CPSH). Over 10 years, the gap is even starker: CENX returned +770. 2% versus CPSH's +120. 6%. 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), CPS Technologies Corporation (CPSH) is the lower-risk stock at 1.

01β versus Constellium SE's 1. 87β — meaning CSTM is approximately 85% more volatile than CPSH relative to the S&P 500. On balance sheet safety, Alcoa Corporation (AA) carries a lower debt/equity ratio of 0% versus 2% for Constellium SE — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), CPS Technologies Corporation (CPSH) is pulling ahead at 54.

3% versus 4. 5% for Alcoa Corporation (AA). On earnings-per-share growth, the picture is similar: Alcoa Corporation grew EPS 1486% year-over-year, compared to -87. 2% for Century Aluminum Company. Over a 3-year CAGR, CPSH leads at 7. 0% 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.

Alcoa Corporation (AA) is the more profitable company, earning 9.

0% net margin versus 1. 3% for CPS Technologies Corporation — meaning it keeps 9. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AA leads at 7. 6% versus 1. 4% for CPSH. At the gross margin level — before operating expenses — CPSH leads at 16. 2%, 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.

On forward earnings alone, Century Aluminum Company (CENX) trades at 5.

9x forward P/E versus 17. 6x for Kaiser Aluminum Corporation — 11. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for CENX: 29. 0% to $76. 00.

In this comparison, KALU (1.

7% yield), AA (0. 6% yield) pay a dividend. CPSH, CENX, CSTM do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, CPS Technologies Corporation (CPSH) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1.

01), +120. 6% 10Y return). Constellium SE (CSTM) carries a higher beta of 1. 87 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CPSH: +120. 6%, CSTM: +521. 6%), 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 (CPSH (Technology) and KALU (Basic Materials) and CENX (Basic Materials) and CSTM (Basic Materials) and AA (Basic Materials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: CPSH is a small-cap high-growth stock; KALU is a small-cap quality compounder stock; CENX is a small-cap quality compounder stock; CSTM is a small-cap high-growth stock; AA is a mid-cap deep-value stock. KALU, AA pay a dividend while CPSH, CENX, CSTM do not, making them suitable for different income and tax situations. 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.