Research / Equities · Aerospace & defense · October 28, 2026Analyst report

Boeing

Boeing is two years into a turnaround after the 737 MAX door-plug accident. The backlog is a record $745 billion and cash flow is positive, but the third quarter showed the recovery running about a year behind plan: the $10 billion cash target moved to 2029. The shares fell 11% to $168, below what the model gives.

Rating vs S&P 500BuyOn its own: undervalued
Value per share$197Cash-flow model, base case
Price at writing$168.18Close, October 27, 2026
Implied return+17.1%Price to value

Since the Report

Today’s close against the report’s numbers, updated every weekday. The analysis is as of October 28, 2026; the rating as of October 22, 2026. Both change only when the report is revised.

$172.65Last close, Oct 29, 2026
+2.7%Since the report’s $168.18
−12.4%Price against $197 value
$165 – $25452-week range

Where Each Method Lands, per Share

The cash-flow model’s bear-to-bull range, the probability-weighted value, the price and its 52-week range. The copper line marks the base case; the fine dotted line is today’s close.

$0$100$200$300$400Cash-flow model$104 to $292Probability-weighted$197Price at writing$168.1852-week range$168 to $254$0$100$200$300$400Cash-flow model$104 to $292Probability-weighted$197Price at writing$168.1852-week range$168 to $254

Written on October 28, 2026, the day after its third-quarter results. Figures are from the company’s filings and releases unless noted. Not investment advice. The author holds BA shares. Earlier published versions, kept unchanged: October 20, 2026 (Buy, value $197).

01 · The business

Half of the world’s big-jet duopoly.

Boeing Commercial Airplanes builds the 737, 767, 777 and 787; Defense, Space & Security builds military aircraft, satellites and weapons; Global Services supports both fleets with parts and maintenance, its most profitable unit. With Airbus it shares a duopoly in large passenger jets, so demand is not the problem: production is.

02 · Latest results

Record backlog, a slower ramp.

$24.2BRevenue, Q3 2026, +4%
161Jets delivered
+$0.5BFree cash flow, after $0.7B of settlement payments
$745BRecord backlog
~$2B2026 free cash flow guidance
−$0.34Core loss per share

Boeing delivered 161 aircraft in the third quarter, including 124 737s, and free cash flow was $464 million after about $0.7 billion of Justice Department settlement payments. The core loss of $0.34 a share was wider than the $0.24 analysts expected, and revenue of $24.2 billion was slightly below estimates. Commercial Airplanes lost 6.5% on sales as supply-chain and rate-change costs rose; defense earned 6.2%, helped by a $252 million gain on selling HRL Laboratories, and services 18.3%. The backlog reached a record $745 billion, not yet counting the Navy’s F/A-XX fighter, and the 737-7 and 737-10 were certified.

The news was the timetable. Stabilising the 737 at 47 a month will run into 2027, with the step to 52 in the second half of 2027; the 787 move from 8 to 10 a month slipped to the end of 2026, so 787 deliveries will be at the low end of 90 to 100. Management narrowed 2026 free cash flow to about $2 billion and set about $3 billion for 2027 and $6 billion for 2028, with the $10 billion target now in 2029, about a year later than before. The 777X is still due for first delivery in 2027.

03 · Five years

Losses since 2019, a profit in 2025.

FY2021FY2022FY2023FY2024FY2025TTM Sep 2026
Revenue$62.3B$66.6B$77.8B$66.5B$89.5B$94.9B
Operating margin−4.6%−5.3%−1.0%−16.1%4.8%10.3%
Net income−$4.2B−$4.9B−$2.2B−$11.8B$2.2B$7.7B
Operating cash flow−$3.4B$3.5B$6.0B−$12.1B$1.1B$4.0B
Capital spending$1.0B$1.2B$1.5B$2.2B$2.9B$4.0B
Free cash flow−$4.4B$2.3B$4.4B−$14.3B−$1.9B$0.0B

Boeing lost money every year from 2019 to 2024. The 2025 profit includes the gain on selling its Jeppesen navigation business, so the turnaround shows up more clearly in cash flow than in earnings.

04 · Balance sheet

Heavy debt, no longer rising.

Debt was $45.9 billion against $20.7 billion of cash and investments at the end of September, with $10 billion of undrawn credit lines; debt is down from over $50 billion. Shareholders’ equity only recently turned positive after years of losses. The 2024 equity raise and asset sales were used to protect the investment-grade rating.

05 · Valuation

The model gives $197 a share.

Boeing’s profits are still distorted by the recovery, so the model works from a free cash flow path. This update moves that path a year later, in line with the new outlook; the lower share price also lowers the discount rate slightly, because debt is now a larger share of the company’s value, which offsets most of the delay.

AssumptionBase caseBasis
Free cash flow, 2026–2030$2B, $3B, $6B, $10B, $11.5BCompany outlook to 2029, then 737 at 52 a month and 787 near 12
ThenGrows 6%, fading to 3% by year 10Deliveries level off, then long-run economic growth
Discount rate9.6%Beta 1.35, about 26% debt at 6%
Net debt$25.2BSeptember 30, 2026
PV of 10 years of cash flow$71B
PV of terminal value$109B
Enterprise value$181B
Less net debt$25.2B
Equity value$155B
Shares791M
Per share$197

Bear, Base and Bull

BearBaseBull
Free cash flow by 2030$7.5B$11.5B$14B
Discount rate10.6%9.6%8.6%
Value per share$104$197$292
Probability25%50%25%

Weighted 25/50/25: $197.

Sensitivity to the Discount Rate

Discount rate8.0%8.5%9.0%9.5%
Value per share$274$244$220$199
Check the numbers

Every figure in this valuation comes from one model script, rerun and checked against this page each time the site is built. The XLSX model rebuilds it in live formulas: change any blue input and every year’s cash flow, the bridge to the value, the scenarios and the sensitivity table recalculate.

06 · What the price assumes

At $168, about $10 billion of cash by 2030.

The price implies free cash flow of roughly $10 billion a year by 2030, about 15% below the base case at every step, or about what Boeing now targets for 2029 with no growth after it. The market is pricing a recovery that arrives late and stops short of the pre-2019 level.

07 · Risks

What could go wrong, and what could go right.

RiskWhy it matters
Quality and the FAAAny new incident could halt the production ramp again; the 777X still needs approval for the rest of its flight tests.
Supply chainWings are the main limit on the 737, a wing-part supplier problem will add costs for several quarters, and engines pace the 787.
Customer depositsLower advance payments from airlines are one reason 2027 cash flow is guided to only $3 billion.
Fixed-price defense programsAir Force One and others have produced repeated charges.

Upside: the F/A-XX contract entering the backlog, defense growth that management now expects in the mid-single digits or higher, and the 777X entering service in 2027.

08 · Rating

Buy. A year behind plan, and priced for it.

Boeing’s backlog guarantees demand; the value depends on building planes at the planned rate and quality. The third quarter moved the $10 billion cash target from 2028 to 2029, and the price fell further than the model’s value.

What would change the value: The 737 holding 47 a month, the 787 reaching 10, 777X certification by mid-2027 and free cash flow against the $2 billion 2026 and $3 billion 2027 outlook are the inputs to watch.

Rating against the S&P 500, October 22, 2026Buy
Expected value$192
Likely range, 10th–90th percentile$121–$259
Price at writing$168.18
Value against price+14%
On its ownUndervalued
S&P 500 value / price68%
Against the market+68%
Chance the value beats the price68%
Chance it is cheaper than the market92%

Ranges, not three cases. The expected value is the average of 4,000 runs of this report’s own model, with every input drawn from a range: the base case is the middle, and the bear and bull cases are the 10th and 90th percentiles. Business inputs move together; the discount rate moves on its own. The 25/50/25 weighting in the valuation section gives $197. How the ranges work

Two different questions. The rating is relative: it asks whether the stock is cheaper or dearer than the S&P 500 on the same assumptions. The absolute view asks whether it is worth its price at all: on its own the stock trades 14% below our estimated value.

On the same assumptions every report uses (a 5.15% Treasury yield and a 4.5% equity premium), the S&P 500 itself is worth about 68% of its price. The rating compares each stock with that: Buy if it is at least 15% cheaper than the market on this basis, Sell if at least 15% dearer, Hold in between. It is the same rule for every company, whoever owns it. The rating is the same whether the index is assumed to grow 6% or 10% a year. How ratings work

Against Its Industry

MeasureBoeingIndustry medianRank
Revenue growth, last fiscal year34.5%9.8%1 of 12Better than the median
Operating margin10.3%10.6%7 of 12Worse than the median
Price to earnings17.9×27.7×3 of 12Better than the median
Free cash flow yield0.0%3.5%11 of 12Worse than the median

Peers: the 11 other S&P 500 companies in Aerospace & Defense with complete data (AXON, GD, GE, HII, HWM, LHX, LMT, NOC, RTX, TDG, TXT). Last twelve months where reported, from SEC filings; prices from the latest close. A lower price-to-earnings ratio ranks higher. These figures update with each data run; the rating does not.

Final view

The recovery is late. The price now allows for it.

Demand is guaranteed by the backlog; Boeing has to build the planes.

09 · Figures and sources

Where the numbers come from.

WhatFiguresSource
Latest results$24.2B (Revenue, Q3 2026, +4%), 161 (Jets delivered), +$0.5B (Free cash flow, after $0.7B of settlement payments), $745B (Record backlog) and othersQ3 2026 results, Boeing; Earnings call; Cash-flow outlook from the call
The numbers (five-year table)Five years of annual figures and the last twelve monthsSEC XBRL company facts; latest: 10-K for the period to 2025-12-31, 10-Q for the period to 2026-09-30
Price at writing$168.18 (Close, October 27, 2026)Yahoo Finance; the time of the quote is stated beside the price
Discount rate inputs10-year Treasury 5.15%, equity risk premium 4.5%Fixed for every report so they can be compared; How ratings work
ValuationEvery value, case and sensitivityThis site’s model: XLSX, CSV
Checked by handNot yetReports are added to the audit log as they are revised

Ranges Used in the Simulation

InputBear (10th percentile)Base (median)Bull (90th percentile)
Growth path1.5/1/3/5/7.52/3/6/10/11.52.5/4.5/8/12/14
Discount rate10.6%9.6%8.6%
Simulation result
Expected value (average of 4,000 runs)$191.74
Likely range, 10th to 90th percentile$120.63 to $259.31
Median$192.64
Chance the value is above the price68%
Chance it is cheaper than the S&P 50092%

Each input is drawn from a split normal: its bear and bull values are the 10th and 90th percentiles, so the two sides can differ. Business inputs share a common factor (correlation 0.6); the discount rate moves on its own. Inputs not listed are held at their base value. How the simulation works.