What is Symbotic? Walmart brings 85% of revenue and most of a $22.5 billion backlog, and half of the first profitable quarter came from interest

Symbotic, the Massachusetts maker of robotic warehouse systems, earned an operating profit for the first time in the quarter to June 27, 2026: $32.9 million on revenue of $720.8 million, according to its 10-Q. The same filing shows that another $30.6 million of pre-tax profit came from other income, so almost half of the $63.5 million the company made before tax in its breakout quarter did not come from selling robots.

That detail matters because Symbotic is unusual among robotics companies. It has the revenue scale of an industrial group, $2.25 billion in fiscal 2025, and a backlog of about $22.5 billion, yet one customer, Walmart, supplied about 85% of that revenue. This explainer uses the 10-K and the latest 10-Q to answer what Symbotic actually sells, how dependent it is on Walmart and whether the move into profit is durable.

A cost-plus robot builder inside Walmart's network

Symbotic designs, installs and maintains automated systems for distribution centres. Fleets of autonomous robots move cases into high-density storage racks and retrieve them in the order a store needs, and robotic arms build mixed pallets for outbound trucks. Systems revenue, the installation work, was 94% of fiscal 2025 revenue; software maintenance and operation services made up the rest.

The relationship with Walmart is written into the contracts. The two companies have worked together since 2015. A 2021 amendment covered 25 of Walmart's 42 regional distribution centres and the May 2022 restated agreement extended it to all 42, adding about $6.1 billion of backlog, with every system due to begin implementation by the end of 2029. Walmart pays the cost of each implementation plus a specified profit, has board observation rights, and the agreement restricts Symbotic from selling to a specified company. In January 2025 Symbotic bought Walmart's Advanced Systems and Robotics unit and signed a second agreement for up to 400 store micro-fulfilment systems, conditional on performance metrics.

The cost-plus model explains the margin profile. Gross margin rose from 13.7% in fiscal 2024 to 18.8% in fiscal 2025 and 22.3% in the June quarter, but it is a contractor's margin, far from the 72.7% AutoStore reported for the first quarter of 2026. The next question is how much of the future is already contracted.

Ten years of revenue already signed

Backlog stood at about $22.5 billion at the end of fiscal 2025 and was unchanged at the end of June 2026; the filings say agreements with Walmart and the GreenBox joint venture make up the vast majority. On fiscal 2025 revenue that is 10.0 years of work, against 1.03 years for AutoStore. The 10-K expected only about 12% of the backlog, roughly $2.7 billion, to become revenue in fiscal 2026. The company's own guidance fits that: nine-month revenue of $2,027.3 million plus the fourth-quarter range of $760 million to $780 million gives $2.79 billion to $2.81 billion for the year, 24.1% to 24.9% growth.

GreenBox, set up in July 2023 with SoftBank Group, which owns 65%, is the second pillar. It committed to buy at least $7.5 billion of Symbotic systems over six years and now trades as Exol. Symbotic carries its 35% stake under the equity method, and the losses it books from it grew to $22.4 million in the first nine months of fiscal 2026 from $7.8 million. Exol is therefore a customer and a drag on earnings at the same time.

What the profit is made of

The improvement at the operating line is real. Nine-month operating income was $45.5 million against a $69.2 million loss, research and development spending fell 8.5% to $138.1 million while selling and administrative costs rose 25.5%, and systems in deployment climbed to 77 from 46. Operating cash flow over nine months was $305.6 million.

But the quarter's operating margin was 4.6%, and other income nearly matched operating income. Of the $55.0 million net income, $43.3 million was attributable to noncontrolling interests, the holders of units in Symbotic Holdings, leaving $11.7 million, or $0.09 a share, for Class A shareholders. Cash fell to $1.7 billion from $2.0 billion in the prior quarter.