Who cashes in
Mercury Systems MRCY doesn't build missiles, radars, or jamming pods — it builds the radiation-hardened processors, digital RF memory modules, and RF/microwave subsystems that go inside the products Lockheed, RTX, Northrop, and L3Harris sell to the Pentagon. In January 2026 alone, Mercury landed over $60 million in new awards spanning a strategic weapons program running through 2031 and a second-customer win for radiation-tolerant wideband storage subsystems built on AMD Versal AI Core FPGAs (ir.mrcy.com). It's also the recorder supplier behind L3Harris's Space Development Agency Tranche 3 Tracking Layer satellites, and its DRFM jamming hardware ships in Navy electronic-warfare pods. Crucially, per its FY2025 10-K, no single prime is existential to Mercury — RTX was 13% of revenue, Lockheed 10%, Northrop under 10% — meaning the multiyear munitions surge lifts Mercury however the prime-vs-prime competition shakes out.
Leidos LDOS and Rocket Lab RKLB ride the same current from different angles: Leidos as the systems-integration layer wrapping around expanded missile-defense and space-sensing programs, Rocket Lab as a beneficiary of the same Tranche 3/proliferated-satellite buildout that's already feeding Mercury's backlog.
Who is exposed
Kratos KTOS and AeroVironment AVAV compete for the platform-level drone and target-system contracts — meaning they live and die by which specific program wins funding in any given cycle, the volatility Mercury is structurally insulated from as the components vendor to nearly all of them.
The play: Munitions multiyear buys are sticky by design — Congress wrote them to survive administrations. Watch Mercury's book-to-bill ratio and its FY2026 10-K customer-concentration table (sec.gov) for confirmation the toll-booth thesis is widening, not narrowing.
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