CACI Internationalvs.Leidos
CACI vs LDOS · both in Communications & defense data, part of the Defense, security & space value chain: IT services, secure communications and data analytics for defense and intelligence.
Leidos is about 1.2× larger than CACI International by market cap; Leidos trades at the lower P/E (12.9 vs 27.8); year to date, CACI International leads (+19.5% vs −23.3%).
Side by side
| CACI | LDOS | |
|---|---|---|
| Market cap | $14.9B | $17.7B |
| Price | $612.10 | $134.54 |
| Today | −3.8% | −2.8% |
| Return YTD | +19.5% | −23.3% |
| Return 1Y | +32.2% | −23.8% |
| P/E | 27.8 | 12.9 |
| P/S | 1.6 | 1.0 |
| P/B | 3.3 | 3.4 |
Data as of 2026-08-26 · updates daily after U.S. close
The two companies
CACI InternationalCACI
Intelligence and surveillance systems for US defense and intelligence agencies, along with secure communications.
Full CACI profile →LeidosLDOS
Contracted IT services and data analysis for US defense and intelligence customers, with security systems alongside.
Full LDOS profile →More CACI & LDOS comparisons
Other head-to-heads in the Communications & defense data segment.
See where CACI and LDOS sit in the full Defense, security & space map: every segment from suppliers to end markets.Open the Defense value chain →