Twin Disc: A Defense Backlog Doubles, but the Data-Center Story Is Still Under $1 Million

Record backlog and a 63% EBITDA jump are real; the fresh data-center keyword and an eFrac mix story are not yet in the numbers.

TWIN · Earnings Call · 2026-11-04

The headline is defense, not data centers

Twin Disc's fiscal Q1 2027 was a strong operating quarter by almost any measure: revenue of $88.7 million rose 10.9%, net income swung to $3.4 million, EBITDA jumped 62.6% to $7.7 million, and the six-month backlog hit a company record of $190.6 million. The just-filed fiscal fourth quarter showed $114 million of revenue, up 18% year over year, and the September quarter added another $88.7 million. But the number that matters most is inside the backlog: defense is now roughly 24% of total backlog, up from 17% at year-end, and total defense backlog rose about 104% year-over-year. “Defense accounted for approximately 24% of total backlog ... and total defense backlog increased approximately 104% year-over-year.” — John Batten, Chief Executive Officer · 2026-11-04 That is an acceleration of a theme Twin Disc has been building for several quarters, not a new one. On the August call, management noted “the backlog itself is up about 50%” — Jeffrey Knutson, CFO · 2026-08-20 in the quarter, and back in November 2025 John Batten said “whatever volume we have this year, again, will be double in '27” — John Batten, Chief Executive Officer · 2025-11-05 for the two main defense programs. The difference now is breadth: the U.S. Navy's initial unmanned-vessel program is reaching the order book, Katsa is shipping driveline components into NATO trucks, and new programs are emerging in the Middle East and Asia. Management framed Katsa's order pipeline as three separate engines: “There is NATO, there is a customer in the Mideast with a program going, and then a new program in Asia.” — John Batten, Chief Executive Officer · 2026-11-04 The catch is cadence. The first 30 U.S. Navy boats will create a bump, but Batten warned that after the current order tranche, “there'll probably be a pause for a few quarters.” — John Batten, Chief Executive Officer · 2026-11-04 Record backlog does not mean linear quarterly revenue, especially in defense.

The data-center keyword is fresh but tiny

The company's top keyword this quarter is data centers, tied to Katsa's components for backup power systems sold to European OEMs. It is a genuinely new theme for Twin Disc, and it sits adjacent to a global market obsession. But the call spent more time deflating it than promoting it. The quarter's data-center revenue was less than $1 million, and Batten was explicit: “It is probably right now still under $1 million.” — John Batten, Chief Executive Officer · 2026-11-04 The opportunity could be meaningful for a roughly $50 million Katsa business, but it is not yet moving the consolidated needle.

I would say it is too early. We do not sell the finished product, so we are basically selling components to ... OEMs in Europe that are the backup power gen sets for these.
John Batten, Chief Executive Officer · 2026-11-04

That distinction matters operationally: these are one-off machined components, not assembly-heavy gearboxes, so they will not stress the new 54,000-square-foot Finland plant. The data-center keyword is fresh for Twin Disc, but the revenue is not yet there. Meanwhile, the global tape is already cooling on the broader data-center complex: data-center infrastructure and AI data-center themes rank among the biggest 30-day decliners in the market context. Twin Disc may be riding a real wave, but it is a late, small, component-level entrant, not a pure-play beneficiary.

Margins and cash: the cost of the upcycle

Gross margin was 28.7%, flat year-over-year, even as revenue grew double digits. That is not a bad outcome given the mix shift toward Katsa and Veth, which run below company-average margins but are improving. Operating income more than doubled to $4.6 million because ME&A expense stayed flat at $20.8 million, so operating leverage is showing up below the gross-margin line. The long-term target remains 30% gross margin by 2030, but the near-term reality is a heavier, more capital-intensive business. Free cash flow was $5.6 million versus negative $11 million a year ago, and net debt fell to $13.1 million from $29.5 million, with net leverage at 0.4x. Still, the balance sheet is not net cash: effective net cash of -$15 million. Management also guided fiscal 2027 free cash flow conversion to only 20%-40%, well below the 60% long-term goal, because capex is expected to reach about $25 million. “I think in the, let's say, between the 20%-40% range.” — Jeff Knutson, Chief Financial Officer · 2026-11-04 That is the trade-off: defense growth requires capacity, and capacity consumes cash before it generates it. The same caution applies to E frac. Prior calls emphasized higher-margin eFrac orders as an oil-and-gas recovery lever, but this quarter's shipments were natural gas and traditional diesel units, not eFrac. Oil and gas still grew 22% year-over-year and represented just over 9% of revenue, so the base business is healthy; the higher-margin eFrac mix simply has not arrived yet. At 0.9x price-to-revenue, the stock has recovered 9.9% over 90 days but remains 11.2% below its October 5 peak. The report validates the defense industrial upcycle and the balance-sheet repair. It does not yet validate a data-center growth story, and it explicitly asks investors to accept lower near-term cash conversion while the company builds for 2028. The watch items are clear: U.S. Navy order cadence after the first 30 boats, Katsa's Finland plant ramp in May 2027, and whether data-center orders convert from "sales in the millions" into a reported line item.