L3Harrisvs.Lockheed Martin
LHX vs LMT · both in Defense integrators, part of the Defense, security & space value chain: The large primes that integrate complete defense systems and platforms.
Lockheed Martin is about 2.6× larger than L3Harris by market cap; Lockheed Martin trades at the lower P/E (22.0 vs 28.6); year to date, Lockheed Martin leads (+16.6% vs −10.5%).
Side by side
| LHX | LMT | |
|---|---|---|
| Market cap | $53.7B | $138B |
| Price | $262.17 | $556.52 |
| Today | −0.3% | −1.4% |
| Return YTD | −10.5% | +16.6% |
| Return 1Y | −4.7% | +26.4% |
| P/E | 28.6 | 22.0 |
| P/S | 3.1 | 1.8 |
| P/B | 2.6 | 15.8 |
Data as of 2026-08-26 · updates daily after U.S. close
The two companies
L3HarrisLHX
Tactical radios and electronic warfare are the core, with space and sensor work beside them. L3Harris sells itself as the quicker alternative to the big primes.
Full LHX profile →Lockheed MartinLMT
The F-35 fighter runs through everything Lockheed Martin does, and there is no bigger defense contractor. Missile defense plus space and satellite systems make up the rest of the work, sold to the US and its allies.
Full LMT profile →More LHX & LMT comparisons
Other head-to-heads in the Defense integrators segment.