Iran war means the U.S. will need to restock ammo. Two defense stocks stand to benefit

The U.S.-Iran exchanges reportedly burned through $5.6B of ammunition in the first two days, and Bernstein says urgent munitions restocking should apply upward pressure to missile suppliers Lockheed Martin and RTX. Bernstein expects White House discussions and prior lawmaker engagements to translate into federal contracts; RTX has risen 62% over the past year and Lockheed Martin is up 37% over the past three months. Caveat: Bernstein warns Iran's offensive capability may be 'effectively destroyed' (missile attacks down ~90%, drone attacks down ~83%), which could reduce replenishment demand and lead stocks to give back gains.

Analysis

A munitions restocking cycle is as much a logistics and qualification story as it is a simple flow of dollars. Primes can win large, fast contracts, but real revenue and margin expansion require retooling test stands, qualifying suppliers and ramping propellant/motor lines — activities with meaningful lead times (think 3–12 months) and lumpy cost profiles that will compress near-term margins even as backlog rises.

Second-order winners are likely to be specialized subsystem suppliers (propulsion, seekers, guidance electronics, test/assembly services) that face capacity tightness; expect those vendors to command premium pricing and extended payment terms, forcing primes to provide working-capital support or take higher-cost subcontract capacity. Conversely, commercial aerospace suppliers with mixed exposure could see order re-prioritization and copper/metal content dislocations, creating temporary upside for military-focused fabs and short-term supply-chain stress for diversified OEMs.

Key catalyzing and reversing events are political and operational: DoD contract announcements and emergency appropriations will drive immediate re-rating, but de-escalation, evidence of sufficient existing inventories, or bottlenecks that delay deliverables will quickly reverse sentiment. Time horizons diverge — market reaction in days is sentiment-driven, contracting and production in months, and durable cashflow uplift only in 6–24 months as missiles are produced, tested and delivered.

From a positioning perspective, the current market likely prices a fast, smooth restock; the smarter play is to express asymmetric upside with defined downside via options and to hedge program-specific execution risk. Monitor DoD award language for cost-plus vs fixed-price terms, subcontractor mentions and appropriations cadence — these will tell you whether upside is recurring revenue or one-off replenishment.

Key Decisions for Investors

• Buy LMT 6–12 month call spread (bull-call vertical) — allocate 1.5% NAV. Rationale: captures multi-quarter backlog re-rating while capping premium paid; target 2:1 reward-to-risk if a string of DoD contracts materialize, max loss = premium.
• Buy RTX 3–6 month call (or tight call spread) — allocate 1% NAV. Rationale: higher immediate sensitivity to Patriot/air-defense restock; use shorter tenor to capture contract awards. Use 10–15% stop or roll into longer-dated spread if award timing slips.
• Pair trade: long LMT / short RTX (equal-dollar) for 3–6 months — allocate 1% NAV net. Rationale: trade valuation dispersion and differential execution risk; unwind if DoD awards explicitly name RTX as sole-source prime or if both stocks gap >12% on same day.
• Buy ITA (A&D ETF) 3-month calls as a low-cost basket exposure — allocate 0.75% NAV. Rationale: diversifies single-name execution risk while capturing sector re-rating on restock announcements; take profits incrementally on 15–25% move.