Compare established defense contractors and their business mix. Defense Stocks are U.S.-listed contractors supplying defense platforms, aerospace systems, communications, and related services. This page ranks 5 of them by market capitalization. Together they are worth about $641.56B, roughly 0.66% of tracked market cap on MarketCapLens. Figures update daily; as of November 12, 2026.
+126.04%
All 5 companies · Nov 2021–Nov 2026.
Scroll sideways for more metrics. Company names stay visible.
| RTX CorporationRTX | $271.63B | 42.34% | $201.29 | +0.51% | +12.31% | +126.04% | +105.07% | |
| Lockheed Martin CorporationLMT | $140.92B | 21.97% | $610.05 | +1.15% | +33.47% | +81.62% | +53.18% | |
| General Dynamics CorporationGD | $99.23B | 15.47% | $367.22 | -0.06% | +4.20% | +84.45% | +79.10% | |
| Northrop Grumman CorporationNOC | $78.27B | 12.20% | $550.96 | +0.43% | -2.78% | +53.07% | +36.12% | |
| L3Harris Technologies, Inc.LHX | $51.5B | 8.03% | $276.59 | +0.23% | -8.32% | +26.31% | +20.48% |
Click a column to sort. Returns are share-price changes (excluding dividends); 5-year cap growth is the change in market capitalization over the period. % of group is each company's share of this list's combined market cap. As of November 12, 2026.
Business roles explain membership; companies can span several businesses.
The group’s combined market capitalization over time, stacked by company so you can see each member’s contribution to the total.
Monthly history for 5 of 5 companies · Nov 2021–Nov 2026.
Companies enter the chart when their available market-cap history begins. New listings and spin-offs can change the total alongside changes in existing companies’ market caps.
Each line shows the share-price change from the starting date, excluding dividends. 0% means no change; +100% means the price doubled, and +200% means it tripled. Shows the largest members with a full five-year history.
Chart coverage: 5 of 5 main-list companies. Shows the largest companies with a full five-year comparison.
We select established U.S.-listed contractors with substantial defense platforms, aerospace systems, or mission-related electronics and services businesses. This is a focused comparison rather than a complete defense-industry directory. Diversified companies can also sell civilian products, and their full market cap is included. Smaller suppliers and software firms are not automatically included because they have a defense customer. Current ranking coverage remains a separate listing and size test.
Business and membership references:
Multi-year programs can create a large order backlog, but timing, funding, and execution determine when work becomes revenue and cash flow.
Some contractors also serve commercial aviation and other civilian markets. Whole-company market caps are not defense-only valuations.
Budget decisions, contract terms, engineering problems, and cost overruns can affect results. A shared government customer does not make the companies interchangeable.
Defense Stocks are U.S.-listed contractors supplying defense platforms, aerospace systems, communications, and related services. This page tracks RTX Corporation, Lockheed Martin Corporation, General Dynamics Corporation, Northrop Grumman Corporation, and L3Harris Technologies, Inc.. Together they are worth about $641.56B, roughly 0.7% of tracked market cap on this site.
The list covers RTX Corporation (RTX), Lockheed Martin Corporation (LMT), General Dynamics Corporation (GD), Northrop Grumman Corporation (NOC), and L3Harris Technologies, Inc. (LHX).
As of 2026-11-12, they have a combined market capitalization of about $641.56B — around 0.7% of tracked market cap here.
Led by RTX Corporation (RTX). Informational only; not investment advice. See our disclaimer.
Over the past five years, RTX Corporation (RTX) has the largest share-price return on this list, about +126.04%. That is a dated price path, not a pick.
It uses 5 of 5 names present from Nov 2021 to Nov 2026. Newer listings stay in current combined cap and the stacked chart but are omitted from that aggregate.
Substantial defense operations can qualify a diversified contractor. The table uses its entire market cap, with no attempt to allocate equity value between civilian and military segments.
No. Industrials includes many unrelated businesses. This is a smaller editorial comparison of selected defense contractors, while Space and Cybersecurity have their own Featured lists.