Lockheed Martin Corporation (LMT) - Stock Report

First-quarter 2026 sales were essentially flat at $18.0 bn, but reported operating profit fell 13% to $2.1 bn and business-segment operating margin compressed to 10.1% from 11.6%. The demand base remains substantial, with backlog of $186.4 bn at 29 March 2026, but backlog also fell from $193.6 bn at year-end 2025, so book-to-bill replenishment matters. Cash was the weak single-quarter signal: reported operating cash flow was $220 m, capex was $511 m, company-defined FCF was negative $291 m, and dividends of $816 m exceeded post-capex cash by about $1.1 bn before the scheduled $1.0 bn debt repayment. Management still reaffirmed 2026 outlook for $77.5-$80.0 bn of sales, $8.425-$8.675 bn of business-segment operating profit, and $6.5-$6.8 bn of company-defined FCF, which is why the valuation test is not demand alone but whether program margins convert backlog into cash.

The key macro issue is not defense demand in isolation, but whether funded missile, aircraft and space demand passes through orders, milestone billings and program margins into post-capex free cash flow; if fixed-price costs or contract assets absorb that demand, backlog visibility would not be enough to protect dividend, debt-service and buyback capacity.

Lockheed Martin is a U.S. aerospace and defense prime contractor. Its value stack starts with access to classified and mission-critical government programs, moves through system integration and production, and extends into sustainment, software, upgrades and spares over long program lives. The business is not a normal capital-goods supplier; it is a contractor embedded in sovereign defense budgets where procurement rules, progress payments, export controls and fixed-price development contracts shape the economics.

The segment roles matter. Aeronautics, led by the F-35, is the franchise scale engine and the sustainment bridge; it gives Lockheed global installed-base duration but is exposed to delivery timing and fighter-program cost performance. Missiles and Fire Control is the munitions and air-defense growth engine, supported by PAC-3, THAAD, JASSM, LRASM and PrSM demand. Rotary and Mission Systems is the mission-equipment and helicopter integration engine, where Sikorsky volume and naval/air-defense electronics determine margin stability. Space is the long-duration strategic-systems engine, with satellites, missile-warning, classified space and NASA work carrying high technical value but visible program-risk sensitivity.

This makes the investment question sector-specific: can a record-scale defense backlog be converted into reported operating profit and post-capex cash without another cycle of reach-forward losses, delivery slippage or working-capital drag?