OSIS vs SAIC vs LDOS vs BAH vs CACI

For growth investors, CACI International Inc (CACI) is the stronger pick with 12.

6% revenue growth year-over-year, versus -2. 9% for Science Applications International Corporation (SAIC). Booz Allen Hamilton Holding Corporation (BAH) offers the better valuation at 10. 6x trailing P/E (12. 7x 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, Booz Allen Hamilton Holding Corporation (BAH) is the cheapest at 10.

6x 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 CACI International Inc's 1. 44x — 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 +2. 7% for Booz Allen Hamilton Holding Corporation (BAH). Over 10 years, the gap is even starker: CACI returned +416. 4% versus SAIC's +104. 4%. 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 4% for Booz Allen Hamilton Holding Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), CACI International Inc (CACI) is pulling ahead at 12.

6% versus -2. 9% for Science Applications International Corporation (SAIC). On earnings-per-share growth, the picture is similar: Booz Allen Hamilton Holding Corporation grew EPS 58. 0% year-over-year, compared to 7. 4% for Science Applications International Corporation. Over a 3-year CAGR, OSIS leads at 13. 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.

OSI Systems, Inc.

(OSIS) is the more profitable company, earning 8. 7% net margin versus 4. 9% for Science Applications International Corporation — 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 7. 1% for SAIC. At the gross margin level — before operating expenses — BAH leads at 54. 8%, 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 CACI International Inc's 1. 44x. 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 23. 0x for OSI Systems, Inc. — 13. 7x 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, BAH (2.

7% yield), SAIC (1. 6% yield), LDOS (1. 2% yield) pay a dividend. OSIS, CACI do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Booz Allen Hamilton Holding Corporation (BAH) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

35), 2. 7% yield, +227. 8% 10Y return). Both have compounded well over 10 years (BAH: +227. 8%, 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 (OSIS (Technology) and SAIC (Technology) and LDOS (Technology) and BAH (Industrials) and CACI (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

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