XTNT vs OSIS vs SAIC vs ATEC vs LDOS

For growth investors, Xtant Medical Holdings, Inc.

(XTNT) is the stronger pick with 28. 4% 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 OSI Systems, Inc. (OSIS) 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, Leidos Holdings, Inc.

(LDOS) is the cheapest at 11. 8x versus OSI Systems, Inc. at 27. 7x. 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 OSI Systems, Inc. 's 1. 39x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, OSI Systems, Inc.

(OSIS) delivered a total return of +149. 9%, compared to -66. 1% for Xtant Medical Holdings, Inc. (XTNT). Over 10 years, the gap is even starker: OSIS returned +372. 9% versus XTNT's -97. 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), Science Applications International Corporation (SAIC) is the lower-risk stock at 0.

26β versus OSI Systems, Inc. 's 1. 44β — meaning OSIS is approximately 445% more volatile than SAIC relative to the S&P 500. On balance sheet safety, Science Applications International Corporation (SAIC) carries a lower debt/equity ratio of 14% versus 17% for Alphatec Holdings, Inc. — giving it more financial flexibility in a downturn.

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

(XTNT) is pulling ahead at 28. 4% versus -2. 9% for Science Applications International Corporation (SAIC). On earnings-per-share growth, the picture is similar: Leidos Holdings, Inc. grew EPS 20. 7% year-over-year, compared to 7. 4% for Science Applications International Corporation. Over a 3-year CAGR, ATEC leads at 29. 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.

OSI Systems, Inc.

(OSIS) is the more profitable company, earning 8. 7% net margin versus -18. 8% for Alphatec Holdings, Inc. — meaning it keeps 8. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: OSIS leads at 12. 7% versus -10. 7% for ATEC. At the gross margin level — before operating expenses — ATEC leads at 69. 6%, 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 OSI Systems, Inc. 's 1. 39x. 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. 1x for Alphatec Holdings, Inc. — 17. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ATEC: 222. 6% to $25. 00.

In this comparison, SAIC (1.

6% yield), LDOS (1. 2% yield) pay a dividend. XTNT, OSIS, ATEC do not pay a meaningful dividend and should not be held primarily for income.

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

26), 1. 6% yield, +104. 4% 10Y return). Both have compounded well over 10 years (SAIC: +104. 4%, OSIS: +372. 9%), 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 (XTNT (Healthcare) and OSIS (Technology) and SAIC (Technology) and ATEC (Healthcare) and LDOS (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: XTNT is a small-cap high-growth stock; OSIS is a small-cap quality compounder stock; SAIC is a small-cap deep-value stock; ATEC is a small-cap high-growth stock; LDOS is a mid-cap deep-value stock. SAIC, LDOS pay a dividend while XTNT, OSIS, ATEC 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.