Boeing is a global aerospace and defense manufacturer spanning commercial airliners, military aircraft, satellites, missile defense, and aftermarket services, with roughly 182,000 employees and a business that remains structurally advantaged by the duopoly economics of large commercial aircraft and the long-cycle, high-switching-cost nature of aerospace platforms.
BA
· Industrials · Aerospace & Defense
· Market cap $158.98B
QuantHub Original Research · Updated 2026-09-22
·
Medium QualityMedium-tier business, cheap-tier valuation with 31.7% upside to $265 fair value.CheapBelow buy zone — at a discount
BA is 34% below fair value, trading below its buy zone — an even more attractive entry for accumulation.
QuantHub Research: Investment Thesis
Scaling Phase
Boeing is a global aerospace and defense manufacturer spanning commercial airliners, military aircraft, satellites, missile defense, and aftermarket services, with roughly 182,000 employees and a business that remains structurally advantaged by the duopoly economics of large commercial aircraft and the long-cycle, high-switching-cost nature of aerospace platforms. The business quality is currently impaired rather than absent: TTM gross margin is just 4.7%, TTM operating margin is -5.4%, and TTM net margin is 2.6%, while free cash flow per share is negative $0.27 and first-half 2026 free cash flow was negative $823 million even though quarterly free cash flow turned positive at $631 million in 2Q 2026. Revenue growth of 8.0% and earnings growth of 27.3% in the most recent quarter show the recovery is underway, and the balance sheet has improved with debt falling to $45.9 billion at June 30, 2026 from $54.1 billion at December 31, 2025. At $201.15, the shares trade at 1.69 times sales, 28.44 times EV/EBITDA, and 65.35 times trailing earnings, which is cheap versus the stock's own five-year history but still embeds substantial recovery expectations. Against a blended fair value estimate of $265.00, the shares offer 31.7% upside and are undervalued versus blended fair value, supported by a Strong Buy consensus and a $265 average target, though the path depends on 737 output rising from 42 to 47 aircraft per month, Spirit AeroSystems integration, FAA oversight, and the conversion of the 200-jet China commitment into firm orders.
Boeing screens cheap on a historical-multiple basis, with the valuation regime flagged as cheap relative to its own five-year history, yet the absolute multiples are demanding: 1.69 times sales, 28.44 times EV/EBITDA, and 65.35 times trailing earnings against a TTM operating margin of -5.4% and TTM gross margin of 4.7%. The trailing P/E is distorted by a depressed earnings base, and the absence of a forward P/E and P/FCF reflects how little clean forward earnings and cash flow visibility the market currently has. The gap between the historical-multiple lens and the blended fair value lens is the crux: versus its own history the stock looks inexpensive, but versus blended fair value of $265.00 the shares at $201.15 are undervalued by 31.7%, not fairly valued. Sentiment remains anchored to execution risk, with the market pricing the 737 production ramp from 42 to 47 aircraft per month, Spirit AeroSystems integration, and FAA oversight as unresolved, while the Strong Buy consensus and $265 average target imply the sell side expects those issues to be worked through.
12–18 Month Outlook
Over the next 18 months, Boeing's trajectory hinges on whether the 737 line actually moves from 42 to 47 aircraft per month and whether Spirit AeroSystems integration proceeds without new quality or delivery disruptions. The most recent quarter showed revenue growth of 8.0% and earnings growth of 27.3%, and quarterly free cash flow turned positive at $631 million in 2Q 2026, but first-half 2026 free cash flow was still negative $823 million and TTM operating margin was -5.4%, so the company is not yet a self-funding recovery. Debt reduction to $45.9 billion at June 30, 2026 from $54.1 billion at December 31, 2025 is a genuine positive, and the $85 billion defense backlog plus the potential finalization of the 200-jet China commitment provide revenue visibility. If execution holds, the blended fair value of $265.00 implies 31.7% upside from $201.15 and the shares are undervalued versus blended fair value; if the production ramp or FAA oversight slips, the 28.44 times EV/EBITDA and 65.35 times trailing earnings leave little valuation cushion.
Bull vs Bear
Bull Case
The recovery is already visible in the numbers: revenue grew 8.0% and earnings grew 27.3% in the most recent quarter, and quarterly free cash flow turned positive at $631 million in 2Q 2026.
Balance sheet deleveraging is real, with debt declining to $45.9 billion at June 30, 2026 from $54.1 billion at December 31, 2025, reducing interest burden and financial risk.
The China commitment for 200 Boeing jets announced in May is progressing toward finalization, according to U.S. Trade Representative Jamieson Greer, which would add meaningful commercial order visibility.
Defense, Space & Security carries an $85 billion backlog at June 30, 2026, providing long-duration revenue visibility, with 27% of that backlog outside the United States.
At $201.15 versus a $265.00 blended fair value estimate, the shares offer 31.7% upside, and the Strong Buy consensus with a $265 average target aligns with that undervaluation.
Bear Case
Profitability remains deeply impaired, with TTM operating margin of -5.4% and TTM gross margin of 4.7%, and Commercial Airplanes reported a $322 million operating loss and -2.7% margin in 2Q 2026.
Free cash flow is still negative on a year-to-date basis, with first-half 2026 free cash flow of negative $823 million and free cash flow per share of negative $0.27.
The turnaround depends on raising 737 output from 42 to 47 aircraft per month while maintaining quality, integrating Spirit AeroSystems, and avoiding supplier and delivery disruptions.
FAA oversight remains a material constraint even after certificate-issuance authority was restored on July 17, 2026, and the FAA inspection directive effective September 10, 2026 for certain 737 aircraft underscores ongoing safety and compliance exposure.
Valuation embeds recovery expectations at 1.69 times sales, 28.44 times EV/EBITDA, and 65.35 times trailing earnings, leaving limited support from current earnings if execution slips.
Leadership & Competitive Position
Robert K. Ortberg
Tenure2 yrs
Beats guidance75% of qtrs
Capital allocationFair
Robert K. Ortberg leads Boeing as CEO, with the company organized into Commercial Airplanes, Defense, Space & Security, Global Services, and Boeing Capital. His tenure is focused on restoring production quality, stabilizing free cash flow, integrating Spirit AeroSystems, and rebuilding regulatory trust with the FAA. The track record so far is mixed: debt has been reduced to $45.9 billion at June 30, 2026 from $54.1 billion at December 31, 2025 and quarterly free cash flow turned positive at $631 million in 2Q 2026, but TTM operating margin remains -5.4% and first-half 2026 free cash flow was negative $823 million.
Competitive Moat
stable
intangible assetsswitching costscost advantage
Boeing operates in a global large commercial aircraft duopoly alongside Airbus, with a Defense, Space & Security backlog of $85 billion at June 30, 2026, of which 27% is outside the United States. The China commitment for 200 jets announced in May, which is progressing toward finalization, illustrates the scale of order flow available to the franchise.
Competitors: Airbus (AIR), Lockheed Martin (LMT), Northrop Grumman (NOC), RTX (RTX)
Disruption: Medium, because the commercial aircraft duopoly is durable but execution, safety, and regulatory setbacks can shift order share, and defense programs face geopolitical and export-control uncertainty.
QuantHub Research
Valuation
Multiple
Current
Median 3yr
Median 5yr
Min 5yr
Max 5yr
P/E
65.35x
87.2x
87.2x
87.2x
87.2x
P/S
1.69x
1.85x
1.85x
1.7x
2.03x
P/FCF
—
—
—
—
—
P/S 1.69x vs 5yr range 1.7-2.03x (P25=1.7x, median=1.85x, P75=1.9x)
Price Outlook (5-Year)
Bear
$212
1.4%/yr
Base
$265
6.0%/yr
fair value
Bull
$318
9.9%/yr
Bear/Base/Bull anchored to QuantHub fair value estimate. Base = headline fair value; Bear −20%; Bull +20%.
TTM operating margin was -5.4% and TTM gross margin was 4.7%. Commercial Airplanes reported a $322 million operating loss and -2.7% margin in 2Q 2026, while Defense, Space & Security reported a $15 million operating loss and -0.2% margin.
Free Cash Flow Deficit
high
Quarterly free cash flow improved to positive $631 million in 2Q 2026, but first-half 2026 free cash flow remained negative $823 million and free cash flow per share was negative $0.27.
Safety And Regulatory Oversight
high
FAA oversight remains a material operational constraint even after certificate-issuance authority was restored on July 17, 2026. The FAA inspection directive effective September 10, 2026 for certain 737 aircraft underscores ongoing safety and compliance exposure.
Production And Supply-Chain Execution
high
The recovery depends on increasing 737 output from 42 to 47 aircraft per month while maintaining quality, integrating Spirit AeroSystems, securing supplier performance, and avoiding delivery disruptions.
High Leverage
medium
Debt declined to $45.9 billion at June 30, 2026 from $54.1 billion at December 31, 2025, but remains substantial relative to uneven profitability and negative first-half free cash flow.
Geopolitical And Defense Exposure
medium
Defense, Space & Security carried an $85 billion backlog at June 30, 2026, with 27% of backlog outside the United States, exposing Boeing to export controls, trade restrictions, geopolitical tension, and international-program risk.
Turnaround Valuation Risk
medium
At 1.69 times sales, 28.44 times EV/EBITDA, and 65.35 times trailing P/E, the equity embeds meaningful recovery expectations despite negative TTM operating margin and recent quarterly losses. The trailing P/E is distorted but still highlights the limited valuation support from current earnings.
Growth Engines
737 Production Rampscaling
The recovery plan targets increasing 737 output from 42 to 47 aircraft per month, which would lift narrowbody delivery volumes and absorb fixed costs.
China Order Finalizationearly
China is making progress on a commitment to buy 200 Boeing jets announced in May, a large incremental order pool if converted to firm contracts.
Defense Backlog Conversionmature
Defense, Space & Security held an $85 billion backlog at June 30, 2026, with 27% outside the United States, providing multiyear revenue visibility.
Global Services Aftermarketmature
Global Services supplies maintenance, upgrades, spare parts, training, and data analytics across a large installed fleet, generating recurring, higher-margin revenue.
China making progress on finalizing Boeing purchases announced in May
U.S. Trade Representative Jamieson Greer said China is making progress on its commitment to buy 200 Boeing jets announced in May, a potential high-impact commercial order catalyst.
2026-09-21
Top S&P 500 stocks to watch as Trump and Xi Jinping meet on Thursday
The upcoming Trump-Xi summit in Washington is expected to drive volatility in S&P 500 constituents including Boeing, given trade and order sensitivity.
2026-09-20
Wall Street Brunch: U.S.-China Summit In Spotlight
Market attention is focused on the U.S.-China summit, a venue that could influence Boeing's China order pipeline and broader trade conditions.
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QuantHub research is focused on quality businesses with durable competitive advantages — companies we'd want to own for 3–5 years or more. We are not short-term traders. Every analysis is built around a single question: is this a great business available at a reasonable price for a long-term investor?
We start where most analysts finish: the fundamentals. For every company, our AI ingests years of financial statements — revenue, margins, free cash flow, and how the business has been valued by the market across multiple cycles. But numbers alone don't tell you whether a business is worth owning.
The harder work is qualitative. We assess the competitive moat: is it widening or eroding? We read the leadership track record — how capital has been allocated, whether management has earned trust through consistent execution. We look at what the market is afraid of, and whether that fear is priced in fairly or irrationally.
Valuation is always relative. A stock is cheap or expensive compared to its own history. We build scenario matrices anchored to 5-year historical multiples, then ask: what has to go right for the upside case, and what's the floor if it doesn't?
Finally, we write an 18-month forward outlook — not a price target, but a mental model of where this business will be and what the narrative will look like. Every note is dated and versioned. When material facts change, we update the thesis.
Frequently Asked Questions
Is BA undervalued?
Yes, BA appears undervalued at the current price of $198.07, trading below our fair value estimate of $265.00 (+34% upside). QuantHub considers this a buy zone.
What is BA's fair value?
QuantHub Research estimates BA's fair value at $265.00 based on our proprietary valuation model incorporating historical P/S, P/E, and P/FCF multiples over a 5-year range.
What are the key risks for BA?
Operational Margin Pressure: TTM operating margin was -5.4% and TTM gross margin was 4.7%. Commercial Airplanes reported a $322 million operating loss and -2.7% margin in 2Q 2026, while Defense, Space & Security reported a $15 million operating loss and -0.2% margin. Free Cash Flow Deficit: Quarterly free cash flow improved to positive $631 million in 2Q 2026, but first-half 2026 free cash flow remained negative $823 million and free cash flow per share was negative $0.27. Safety And Regulatory Oversight: FAA oversight remains a material operational constraint even after certificate-issuance authority was restored on July 17, 2026. The FAA inspection directive effective September 10, 2026 for certain 737 aircraft underscores ongoing safety and compliance exposure.
What is the bull case for BA?
The recovery is already visible in the numbers: revenue grew 8.0% and earnings grew 27.3% in the most recent quarter, and quarterly free cash flow turned positive at $631 million in 2Q 2026. Balance sheet deleveraging is real, with debt declining to $45.9 billion at June 30, 2026 from $54.1 billion at December 31, 2025, reducing interest burden and financial risk. The China commitment for 200 Boeing jets announced in May is progressing toward finalization, according to U.S. Trade Representative
How confident is QuantHub in BA?
QuantHub has moderate conviction in BA. Research last updated 2026-09-22.