OSIS vs SAIC vs LDOS

For growth investors, OSI Systems, Inc.

(OSIS) is the stronger pick with 11. 3% revenue growth year-over-year, versus -2. 9% for Science Applications International Corporation (SAIC). Leidos Holdings, Inc. (LDOS) offers the better valuation at 12. 1x trailing P/E (11. 4x 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 12. 1x versus OSI Systems, Inc. at 27. 6x. 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. 55x 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 +148. 3%, compared to +14. 8% for Science Applications International Corporation (SAIC). Over 10 years, the gap is even starker: OSIS returned +377. 5% 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 119% for Leidos Holdings, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), OSI Systems, Inc.

(OSIS) is pulling ahead at 11. 3% 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, 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 — OSIS leads at 34. 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. 55x 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 23. 0x for OSI Systems, Inc. — 13. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for LDOS: 51. 2% to $204. 00.

In this comparison, SAIC (1.

6% yield), LDOS (1. 2% yield) pay a dividend. OSIS does 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: +377. 5%), 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.

Both stocks operate in the Technology sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

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. SAIC, LDOS pay a dividend while OSIS 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.