ACM vs SPIR vs ASTS vs J

For growth investors, AST SpaceMobile, Inc.

(ASTS) is the stronger pick with 1505% revenue growth year-over-year, versus -35. 2% for Spire Global, Inc. (SPIR). Spire Global, Inc. (SPIR) offers the better valuation at 11. 0x trailing P/E, making it the more compelling value choice. Analysts rate Aecom (ACM) a "Buy" — based on 25 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, Spire Global, Inc.

(SPIR) is the cheapest at 11. 0x versus Jacobs Solutions Inc. at 48. 0x. On forward P/E, Aecom is actually cheaper at 11. 8x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, AST SpaceMobile, Inc.

(ASTS) delivered a total return of +892. 7%, compared to -77. 7% for Spire Global, Inc. (SPIR). Over 10 years, the gap is even starker: ASTS returned +646. 8% versus SPIR's -76. 8%. 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), Aecom (ACM) is the lower-risk stock at 0.

90β versus Spire Global, Inc. 's 3. 10β — meaning SPIR is approximately 244% more volatile than ACM relative to the S&P 500. On balance sheet safety, Spire Global, Inc. (SPIR) carries a lower debt/equity ratio of 8% versus 125% for Aecom — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), AST SpaceMobile, Inc.

(ASTS) is pulling ahead at 1505% versus -35. 2% for Spire Global, Inc. (SPIR). On earnings-per-share growth, the picture is similar: Spire Global, Inc. grew EPS 137. 8% year-over-year, compared to -62. 3% for Jacobs Solutions Inc.. Over a 3-year CAGR, ASTS leads at 72. 5% 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.

Spire Global, Inc.

(SPIR) is the more profitable company, earning 71. 7% net margin versus -482. 2% for AST SpaceMobile, Inc. — meaning it keeps 71. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: J leads at 7. 2% versus -405. 7% for ASTS. At the gross margin level — before operating expenses — ASTS leads at 53. 4%, 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, Aecom (ACM) trades at 11.

8x forward P/E versus 15. 8x for Jacobs Solutions Inc. — 4. 0x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ACM: 79. 6% to $125. 63.

In this comparison, ACM (1.

4% yield), J (1. 1% yield) pay a dividend. SPIR, ASTS do not pay a meaningful dividend and should not be held primarily for income.

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

90), 1. 4% yield, +126. 9% 10Y return). Spire Global, Inc. (SPIR) carries a higher beta of 3. 10 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ACM: +126. 9%, SPIR: -76. 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 (ACM (Industrials) and SPIR (Industrials) and ASTS (Technology) and J (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: ACM is a small-cap deep-value stock; SPIR is a large-cap deep-value stock; ASTS is a mid-cap high-growth stock; J is a mid-cap quality compounder stock. ACM, J pay a dividend while SPIR, ASTS 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.