Tesla: $28.05 Billion in Revenue, Flat Year Over Year, and Operating Income Fell 55.8% While Research and Development Spending Rose 69%

Tesla reported third-quarter 2026 results on Wednesday, October 21, after the close: revenue of $28.05 billion, flat versus the same quarter a year earlier, and operating income of $718 million - down 55.8%. Research and development spending rose 69.4% to $2.76 billion, capital expenditures more than doubled to $4.73 billion, and deliveries fell 2% to 486,532. Active FSD subscriptions reached 1.74 million, up 67%.

By Ilan Abramov8 min read
Tesla: $28.05 Billion in Revenue, Flat Year Over Year, and Operating Income Fell 55.8% While Research and Development Spending Rose 69%
* The cover image was generated with an AI tool and is not a photograph.

Tesla reported third-quarter 2026 results on Wednesday, October 21, after the close. Revenue: $28.05 billion - effectively flat against $28.10 billion in the year-ago quarter. Operating income fell 55.8% to $718 million, mainly because operating expenses rose 39.2%, and within them research and development rose 69.4%.

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What was reported

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Q3 2026Q3 2025Change
Total revenue (millions of dollars)28,04628,095-0.2%
Of which: automotive20,56021,205-3.0%
Of which: energy and storage2,8813,415-15.6%
Of which: services and other4,6053,475+32.5%
Gross profit5,4945,054+8.7%
Gross margin19.6%18.0%+160 bps
Total operating expenses4,7763,430+39.2%
Operating income7181,624-55.8%
Operating margin2.6%5.8%-322 bps
Net income to common stockholders7871,373-42.7%
Diluted earnings per share (dollars)0.220.39-43.6%
Diluted earnings per share, non-GAAP0.480.50-4.0%

Source: Tesla's third-quarter 2026 update, October 21, 2026, filed with the SEC on Form 8-K as Exhibit 99.1.

Why profit fell when revenue did not

Gross profit rose 8.7%, and gross margin improved to 19.6% from 18.0%. So the problem is not on the production line. The decline sits entirely on operating expenses, which rose by $1.35 billion:

  • Research and development: $2.76 billion, up 69.4% from $1.63 billion. The company attributes this to super intelligence (SI) and other development projects.
  • Selling, general and administrative: $2.02 billion, up 29.0%.
  • Stock-based compensation rose 75.7% to $1.17 billion, and includes the 2025 CEO performance award.

On the revenue side there is one item worth flagging: regulatory credit revenue fell 72.9%, to $113 million from $417 million. That difference, $304 million, is revenue at full gross margin, so its effect on operating income is direct.

Vehicles: production up, deliveries down

Production rose 4% to 464,391 vehicles, but deliveries fell 2% to 486,532. The gap between the two points to selling out of inventory: days of supply fell to 11, from 15 in the previous quarter.

The breakdown shows where the decline came from. Model 3 and Model Y posted 478,237 deliveries, versus 481,166 - a slight decline. The other models fell to 8,295 deliveries, from 15,933 - a drop of 48%. In production, the other models fell to 7,004 from 11,624.

The company reports that its passenger vehicle backlog is the largest in four years, that it set delivery records in Canada, Australia, Japan and Taiwan, and a production record at the Berlin plant. It also notes that battery availability remained the factor limiting the pace of the increase in vehicle production.

Automotive gross margin rose to 18.5%, from 17.0%, and excluding regulatory credits to 18.1% from 15.4%.

Energy: volume up, revenue down

Energy and storage revenue fell 15.6% to $2.88 billion, while storage deployed rose 9.6% to 13.7 gigawatt-hours. The company attributes part of the decline to tariff-related customer refunds.

Against that, the segment's gross profit softened the picture: segment cost of revenue fell to $1.93 billion from $2.34 billion, so gross profit came to $954 million from $1.07 billion - a smaller decline than in revenue.

The Megafactory in Texas began production, with planned capacity of 50 gigawatt-hours, and the company shipped the first Megapacks built entirely from its own LFP cells made in Nevada.

Services, and cash flow

Services and other revenue rose 32.5% to $4.61 billion, and its gross profit reached a record $734 million - up $86 million from the previous quarter.

Cash flow from operating activities was $6.26 billion, almost identical to $6.24 billion a year earlier. But capital expenditures more than doubled, to $4.73 billion from $2.25 billion, and so free cash flow fell 61.6% to $1.53 billion from $3.99 billion.

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On a trailing twelve-month view the picture is sharper: trailing free cash flow fell to $3.30 billion, from $6.83 billion in the comparable period and from $7.00 billion at the peak measured in the first quarter of 2026. Trailing capital expenditures rose to $15.41 billion, from $8.91 billion.

Cash, cash equivalents and short-term investments reached $45.45 billion, up $1.9 billion from the previous quarter.

The software, the robotaxi and the robots

Here is the growth. Active FSD subscriptions reached 1.74 million, up 67% from 1.04 million. According to the company, the FSD attach rate on deliveries in North America rose by nearly twenty percentage points versus the previous quarter. FSD was approved in four more countries - Croatia, Slovenia, the Czech Republic and Slovakia - and is now approved in nine European Union countries, with more than 100,000 customers who have logged over 160 million kilometres.

In the Robotaxi service: the company began providing rides with Cybercab in Austin on September 3, and cumulative unsupervised miles grew eightfold versus the previous quarter, to nearly two million miles by quarter-end. Operating hours in Austin are now 6am to midnight.

Optimus production began in Fremont on the high-volume lines, and the company writes that the units coming off the line are the first of production quality. Alongside it, Tesla Semi production began in Nevada: the top variant travels 500 miles at a full 82,000 pounds, at an efficiency of 1.7 kilowatt-hours per mile.

In compute infrastructure: Cortex 1 in Texas is above 105 megawatts and Cortex 2 above 120 megawatts, and the company plans to reach 400 megawatts of training compute by year-end. Construction also continues on the Austin chip fab, where equipment is planned to be commissioned in 2027.

Guidance

The company does not give guidance figures for the quarter or the year. In its outlook section it writes that it is focused on maximum capacity utilisation at its factories, that deliveries and deployments will be shaped by demand, supply chain readiness and allocation decisions between sales to customers and use in its own fleet, and that over time it expects hardware profits to be accompanied by an acceleration of SI, software and fleet-based profits.

The stock

The report was published after the close on Wednesday. The last close before the report: $386.47 on Wednesday, October 21, up 3.41% from the prior close of $373.71. The trading reaction to the report falls in the after-hours session and in Thursday's session, October 22. I was not able to verify that day's close at the time of writing, so I am not reporting it - the data provider reached its daily request limit. A figure that has not been verified does not get written, and I will update it when I have it.

The Roadster unveiling of October 15, which the quarterly update also mentions, we covered in a separate piece.

הזווית שלי

דעה אישית של אילן אברמוב - לא ייעוץ ולא המלצה

This report describes a company in the middle of swapping its engine, and the two halves look like opposites of each other.

The first half: a vehicle business that is flat to shrinking. Automotive revenue fell 3%, deliveries 2%, and the models other than Model 3 and Y fell 48%. Regulatory credits, which are almost pure revenue, were cut 72.9%. And yet automotive gross margin rose - 18.5% versus 17.0%, and excluding regulatory credits 18.1% versus 15.4%. That is real manufacturing efficiency, on volume that is not growing.

The second half: spending that doubles on things that do not yet sell. Research and development up 69.4%, capital expenditures more than doubled, and trailing free cash flow down from $6.83 billion to $3.30 billion. That is the money going to SI, to Optimus, to the Semi and to the Austin fab.

What holds up the argument that the swap is working is the subscriptions: 1.74 million FSD subscriptions, up 67%, and services gross profit at a record $734 million. That is recurring revenue, not a car sale.

What holds up the opposite argument is that battery availability - not demand - is what the company itself flags as the limiting factor. A company that doubles capital spending while reporting that it is constrained on a component is telling you that the spending has not yet reached the place where it changes volume.

What I will follow: energy segment revenue, which fell 15.6% while deployed volume rose 9.6% - a gap the release explains only partly through tariff refunds; and FSD subscriptions, currently the one line in the report that both grows by tens of percent and recurs every month.

(To be clear: this is my personal opinion only. Nothing here is a recommendation to take any action, and there is no forecast here of the price of any security.)

Ilan Abramov, the author, or anyone on his behalf may hold some of the securities or funds mentioned in this article.