Aerospace-Defense Sector Theme: Defense Spending Meets Commercial Recovery

The Big Picture

May 2026 presents aerospace-defense investors with a constructive dual-tailwind backdrop: defense budgets expanding globally amid geopolitical tensions, while commercial aviation continues its post-pandemic recovery trajectory. This creates a leadership dynamic where large prime contractors harvest budget upside while supply-chain plays offer leveraged exposure to the commercial recovery.

Defense Budget Expansion: The Structural Tailwind

Global defense spending is accelerating at a pace not seen since the Cold War era. NATO members are converging toward the 2% GDP spending target, the US defense budget authorization process continues to fund priority programs, and allied nations are committing to meaningful capability investments.

RTX (Raytheon) emerges as a sector leader with strong positioning across both defense electronics and commercial aerospace. The Collins Aerospace and Pratt & Whitney combination provides unique exposure to both defense modernization and commercial air travel recovery. At a score of 78, RTX commands the sector's top ranking, benefiting from:

Defense electronics growth (radar, electronic warfare, missiles)

Commercial aerospace recovery (Collins and Pratt divisional leverage)

Cost discipline and portfolio optimization

LMT (Lockheed Martin) and NOC (Northrop Grumman) maintain strong rankings reflecting their essential role in critical defense programs. LMT's F-35 program remains the Western world's flagship fighter platform, while NOC's space and stealth positioning provides long-duration contracts.

Commercial Aviation: The Multi-Year Recovery

Commercial air travel demand has proven remarkably resilient, with RPK (revenue passenger kilometers) growth exceeding expectations. This recovery creates a differentiated exposure:

BA (Boeing) sits at an interesting inflection point. The company has navigated significant challenges and now shows signs of operational stabilization. Revenue expanded to $89.5B in FY2025, a major recovery from prior years. The 737 MAX program's resolution and 787 production rate increases provide forward optionality. However, risks around key program execution and balance sheet restoration keep BA from the top tier despite improved fundamentals.

HWM (Howmet Aerospace) stands out as a supply chain leverage play with exceptional operational efficiency. At only $8.3B in revenue, HWM generates operating income that rivals much larger peers, reflecting the aerospace components' attractive economics. The stock benefits from both defense and commercial exposure without the capital intensity of prime contractors.

The Valuation Framework

The sector trades at differentiated multiples reflecting growth trajectories:

Company	Rev ($B)	Net Income ($B)	Operating Margin	Key Observation
---------	----------	-----------------	------------------	-----------------
RTX	88.6	6.7	10.5%	Scale + diversification
LMT	75.0	5.0	10.3%	F-35 steady performer
NOC	42.0	4.2	10.7%	Space/stelath premium
GD	52.6	4.2	10.2%	Marine/IT diversification
BA	89.5	2.2	4.8%	Recovery story
HWM	8.3	1.5	24.8%	Best-in-class margins

Key Themes for Q2 2026

1. Budget authorization process: Monitor congressional defense authorization and appropriation outcomes 2. Commercial recovery trajectory: Track airline RPK data and aircraft delivery rates 3. M&A potential: Defense consolidation continues; RTX's portfolio optimization sets the template 4. Supply chain normalization: Component shortages easing create margin leverage for primes 5. Geopolitical catalyst awareness: Ukraine/Israel/Germany defense spending trajectories

Bottom Line

The aerospace-defense sector offers a compelling combination of defensive characteristics (stable government contracts, essential capabilities) and cyclical upside (commercial aviation recovery). RTX leads with the most diversified exposure, while HWM provides a unique supply chain leverage story. BA warrants monitoring as operational metrics stabilize, but execution risk keeps it lower in rankings despite improved fundamentals.

Investor focus should remain on companies with demonstrated program execution, strong free cash flow generation, and balanced exposure to defense modernization and commercial recovery themes.