OSIS vs CACI

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

6% revenue growth year-over-year, versus 11. 3% for OSI Systems, Inc. (OSIS). CACI International Inc (CACI) offers the better valuation at 22. 0x trailing P/E (17. 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, CACI International Inc (CACI) is the cheapest at 22.

0x versus OSI Systems, Inc. at 27. 7x. On forward P/E, CACI International Inc is actually cheaper at 17. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: OSI Systems, Inc. wins at 1. 39x versus CACI International Inc's 1. 44x — a reasonable growth-adjusted valuation.

Over the past 5 years, OSI Systems, Inc.

(OSIS) delivered a total return of +149. 9%, compared to +85. 4% for CACI International Inc (CACI). Over 10 years, the gap is even starker: CACI returned +416. 4% versus OSIS's +372. 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), CACI International Inc (CACI) is the lower-risk stock at 0.

30β versus OSI Systems, Inc. 's 1. 44β — meaning OSIS is approximately 385% more volatile than CACI relative to the S&P 500. On balance sheet safety, OSI Systems, Inc. (OSIS) carries a lower debt/equity ratio of 72% versus 86% for CACI International Inc — 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 11. 3% for OSI Systems, Inc. (OSIS). On earnings-per-share growth, the picture is similar: CACI International Inc grew EPS 20. 0% year-over-year, compared to 18. 0% for OSI Systems, Inc.. 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 5. 8% for CACI International 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 8. 9% for CACI. 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, OSI Systems, Inc. (OSIS) is the more undervalued stock at a PEG of 1. 39x versus CACI International Inc's 1. 44x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, CACI International Inc (CACI) trades at 17. 4x forward P/E versus 23. 0x for OSI Systems, Inc. — 5. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for CACI: 48. 1% to $725. 50.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

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

30), +416. 4% 10Y return). Both have compounded well over 10 years (CACI: +416. 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.

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

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.