ASTS vs TMUS

For growth investors, AST SpaceMobile, Inc.

(ASTS) is the stronger pick with 1505% revenue growth year-over-year, versus 8. 5% for T-Mobile US, Inc. (TMUS). T-Mobile US, Inc. (TMUS) offers the better valuation at 20. 0x trailing P/E (18. 5x forward), making it the more compelling value choice. Analysts rate AST SpaceMobile, Inc. (ASTS) a "Buy" — based on 7 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.

Over the past 5 years, AST SpaceMobile, Inc.

(ASTS) delivered a total return of +731. 6%, compared to +51. 0% for T-Mobile US, Inc. (TMUS). Over 10 years, the gap is even starker: ASTS returned +553. 7% versus TMUS's +415. 9%. 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), T-Mobile US, Inc.

(TMUS) is the lower-risk stock at -0. 28β versus AST SpaceMobile, Inc. 's 2. 82β — meaning ASTS is approximately -1105% more volatile than TMUS relative to the S&P 500. On balance sheet safety, AST SpaceMobile, Inc. (ASTS) carries a lower debt/equity ratio of 1% versus 2% for T-Mobile US, Inc. — giving it more financial flexibility in a downturn.

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

(ASTS) is pulling ahead at 1505% versus 8. 5% for T-Mobile US, Inc. (TMUS). On earnings-per-share growth, the picture is similar: AST SpaceMobile, Inc. grew EPS 30. 9% year-over-year, compared to 0. 6% for T-Mobile US, 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.

T-Mobile US, Inc.

(TMUS) is the more profitable company, earning 12. 4% net margin versus -482. 2% for AST SpaceMobile, Inc. — meaning it keeps 12. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: TMUS leads at 21. 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.

Analyst consensus price targets imply the most upside for ASTS: 62.

3% to $103. 65.

In this comparison, TMUS (1.

9% yield) pays a dividend. ASTS does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, T-Mobile US, Inc.

(TMUS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β -0. 28), 1. 9% yield, +415. 9% 10Y return). AST SpaceMobile, Inc. (ASTS) carries a higher beta of 2. 82 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (TMUS: +415. 9%, ASTS: +553. 7%), 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 (ASTS (Technology) and TMUS (Communication Services)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: ASTS is a mid-cap high-growth stock; TMUS is a large-cap quality compounder stock. TMUS pays a dividend while ASTS does 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.