STAI vs LIN vs APD vs SAIC vs LDOS

For growth investors, Leidos Holdings, Inc.

(LDOS) is the stronger pick with 3. 1% revenue growth year-over-year, versus -2. 9% for Science Applications International Corporation (SAIC). Leidos Holdings, Inc. (LDOS) offers the better valuation at 11. 8x trailing P/E (11. 1x forward), making it the more compelling value choice. Analysts rate Linde plc (LIN) a "Buy" — based on 28 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, Leidos Holdings, Inc.

(LDOS) is the cheapest at 11. 8x versus Linde plc at 33. 8x. On forward P/E, Science Applications International Corporation is actually cheaper at 9. 3x — 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: Leidos Holdings, Inc. wins at 0. 54x versus Linde plc's 1. 09x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Linde plc (LIN) delivered a total return of +73.

9%, compared to -99. 1% for ScanTech AI Systems Inc. (STAI). Over 10 years, the gap is even starker: LIN returned +375. 2% versus STAI's -99. 1%. 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), Linde plc (LIN) is the lower-risk stock at 0.

24β versus ScanTech AI Systems Inc. 's 0. 65β — meaning STAI is approximately 171% more volatile than LIN relative to the S&P 500. On balance sheet safety, Science Applications International Corporation (SAIC) carries a lower debt/equity ratio of 14% versus 119% for Leidos Holdings, Inc. — giving it more financial flexibility in a downturn.

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

(LDOS) is pulling ahead at 3. 1% versus -2. 9% for Science Applications International Corporation (SAIC). On earnings-per-share growth, the picture is similar: ScanTech AI Systems Inc. grew EPS 35. 2% year-over-year, compared to -110. 3% for Air Products and Chemicals, Inc.. Over a 3-year CAGR, LDOS leads at 6. 1% 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.

Linde plc (LIN) is the more profitable company, earning 20.

3% net margin versus -42. 5% for ScanTech AI Systems Inc. — meaning it keeps 20. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: LIN leads at 26. 3% versus -1644. 8% for STAI. At the gross margin level — before operating expenses — LIN leads at 43. 3%, 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, Leidos Holdings, Inc. (LDOS) is the more undervalued stock at a PEG of 0. 54x versus Linde plc's 1. 09x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Science Applications International Corporation (SAIC) trades at 9. 3x forward P/E versus 27. 7x for Linde plc — 18. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for LDOS: 55. 5% to $204. 00.

In this comparison, APD (2.

4% yield), SAIC (1. 6% yield), LIN (1. 2% yield), LDOS (1. 2% yield) pay a dividend. STAI does not pay a meaningful dividend and should not be held primarily for income.

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

24), 1. 2% yield, +375. 2% 10Y return). Both have compounded well over 10 years (LIN: +375. 2%, STAI: -99. 1%), 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 (STAI (Basic Materials) and LIN (Basic Materials) and APD (Basic Materials) and SAIC (Technology) and LDOS (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: STAI is a small-cap quality compounder stock; LIN is a large-cap quality compounder stock; APD is a mid-cap quality compounder stock; SAIC is a small-cap deep-value stock; LDOS is a mid-cap deep-value stock. LIN, APD, SAIC, LDOS pay a dividend while STAI 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.