Mercury Systems (MRCY) Q1 2027 earnings review

Mercury Systems raises its profit plan, while inventory drains cash

Mercury Systems, a maker of signal and data processing electronics for military aircraft, radars and missiles, grew faster and earned much higher margins than its own plan called for. Revenue rose 12%, or about 23% by our math after stripping out early shipments from a year ago, while adjusted EBITDA margin reached 22% against a 16% target. Chief executive Bill Ballhaus raised the full-year revenue, profit and cash outlook as new defense orders pushed backlog past $2 billion.

At a glance
Revenue$253.2M +12.4% from a year ago (~23% stripping last year's early shipments)
New orders (bookings)$370.5M +48% from a year ago; 1.46x revenue
Adjusted EBITDA margin22.3% 15.8% a year ago and 15.8% planned
Full-year adjusted EBITDA outlookRaised to ~$210M up from approaching $200M (+40% from a year ago)

⚖️ Verdict: 🟢 Bullish

The story got better because two standing worries eased in the same quarter: orders stayed strong at 1.46 times sales right after a record fourth quarter, and newer production contracts lifted margins into management's long-term 20% to 25% target band a year early. One caution: the company burned $24 million of cash to stock factory inventory early, and by our math the raised full-year plan still points to margins stepping back down to about 18% over the next three quarters.

The question now is whether the 22% margin marks the true earning power of the new backlog or mostly a lucky quarter of high-margin product shipments. If old low-margin contracts are nearly gone, Mercury will beat its 18% second-quarter margin plan; if mix drove the jump, margins will drop back toward the high teens. Second-quarter gross margin and cash flow will tell.

🐂 Bull Case

🟢🟢 strengthening MARGIN

Newer Defense Contracts Lifted Margins Into the Target Band

Mercury Systems makes signal and data processing electronics for military aircraft, radars and missiles. For two years, older development contracts with cost overruns weighed on its profitability. Chief executive Bill Ballhaus wants adjusted EBITDA margin — profit before interest, taxes, depreciation, amortization and one-offs — in the low-to-mid 20% range.

"Our first quarter results reflect robust organic growth and margins that are in-line with our target profile. Based on this solid execution, we are raising our outlook for fiscal year 2027," Ballhaus said. Replacing older work with higher-margin production contracts and a favorable product mix drove the jump.

  • Gross margin: 35.2%, up 7.3 percentage points as the cost of making products fell from 72.1% to 64.8% of sales
  • Selling and administrative overhead: down 3.4 percentage points to 17.0% of sales, while research spending rose 0.5 points to 6.3%
  • Adjusted EBITDA margin: 22.3%, up 6.5 percentage points and well above the 15.8% outlook
  • Standard operating profit: $18.5 million, swinging from an $8.6 million loss a year ago even after $17.2 million of stock-based pay

What to watch: gross margin in the second quarter. A reading that stays above 32% when product mix normalizes would show the old low-margin backlog is mostly gone.

🟢🟢 strengthening PRODUCT

Defense Orders Held Up After Last Quarter's Record

Last quarter, the defense contractor booked $660 million of orders, more than double its shipments, because several customers combined future orders into single contracts. That raised the risk of an order slump in the first quarter. Instead, Mercury booked $370.5 million of new orders, up 48% from a year ago, or $1.46 of orders for every dollar of sales.

The presentation credited "earlier-than-expected bookings" as US defense spending programs began turning into contracts. Wins included "a competitive takeaway on the F-35 program" in electronic warfare, production awards for weapons and missile defense, and funding for "early-stage Golden Dome-related missile tracking capabilities". Total backlog grew by $116 million in the quarter to $2.06 billion, with $1.04 billion due within 12 months.

What to watch: second-quarter book-to-bill — the ratio of new orders to sales. Staying above 1.0 would confirm that defense demand is replenishing backlog faster than factories ship.

🟢 strengthening GROWTH

Underlying Sales Grew Faster Than the 12% Headline

Reported revenue rose 12.4% from a year ago to $253.2 million, topping the high-single-digit plan management set three months ago. The headline rate understates the pace of factory shipments because the year-ago quarter included about $20 million of deliveries pulled forward from the second quarter.

Stripping that early shipment out of the comparison base, underlying sales grew 23% by our math, and adjusted EBITDA more than doubled. Better parts availability allowed factories to ship steadily rather than rushing orders at quarter-end, so Ballhaus raised the full-year revenue, profit and cash outlook after one quarter.

What to watch: whether second-quarter revenue beats the 10% growth target. Backlog scheduled for the next 12 months already covers 95% of the full-year sales plan by our math, well above the historical 81% to 84%.

🐻 Bear Case

🔴 persistent CASH

Early Factory Purchases Drained $24 Million of Cash

Mercury's move to bring parts into its factories earlier has two sides: it speeds up revenue growth, but it ties up cash on the balance sheet. Over the past two years, the electronics maker generated cash by shrinking its working capital. That tailwind has reversed as factories ramp up production across dozens of defense programs.

In the first quarter, the company burned $24.4 million of free cash flow, six times the $4.4 million outflow a year ago. Management made "targeted investments in inventory, automation, and factory optimization", lifting inventory by $31.6 million in three months to $398.6 million, up 17.1% from a year ago. Receivables also absorbed $17.5 million of cash.

What to watch: second-quarter free cash flow and inventory levels. Management promised positive cash flow next quarter, which requires turning those stocked parts into billed shipments.

🔴 persistent MARGIN contradicts narrative

The Raised Full-Year Plan Points to Lower Margins Next

Management called the first quarter's 22.3% adjusted EBITDA margin "an early indication of our ability over time to consistently deliver results within our target margin profile". Yet the company's own outlook for the rest of fiscal 2027 steps back down below that 20% to 25% target band.

For the second quarter, the presentation plans for adjusted EBITDA margin to rise about 5 percentage points from a year ago, which puts it near 17.9% by our math — down 4.4 points from the first quarter. The raised full-year outlook of about $210 million on revenue approaching $1.1 billion implies a full-year margin near 19.1%, leaving the second half near 18.3% by our math. That gap shows favorable product mix did much of the work this quarter, while older low-margin contracts still remain in the schedule.

What to watch: whether fourth-quarter adjusted EBITDA margin gets back above 20%, where management previously said the business would exit the year.

🔴 persistent DISCLOSURE

Risks this quarter didn't answer

Five standing concerns from last year's annual report got no new numbers in the earnings release or presentation slides and await the quarterly filing.

  • International deliveries: foreign sales fell 15.5% last year after Mercury sold its Swiss plant to contract manufacturer Cicor; the geographic table in the 10-Q filing will show if the delivery slowdown is easing.
  • Non-cancellable backlog: remaining performance obligations under accounting rules were $1.08 billion last quarter, barely half of headline backlog; the 10-Q footnote will update the gap.
  • Product line sizing: management highlighted awards in its Common Processing Architecture, weapons and Golden Dome, but again gave no dollar revenue or order figures for them.
  • Test-result investigation: no update on the self-reported internal inquiry into past test certifications on $15 million of subcontracts or any government penalty.
  • Shareholder lawsuit: no update on legal costs from activist fund Starboard opting out of the class-action settlement.

👓 Other Themes

new GOVERNANCE

Finance Chief Dave Farnsworth Adds the Chief Operating Officer Title

On November 10, Mercury formalized chief financial officer Dave Farnsworth's additional role as chief operating officer. The release noted that Farnsworth "has been effectively operating in this capacity for quite some time", so the title change does not alter daily factory or supply-chain leadership.

💲 Other KPIs

Net debt (27Q1) $231.8 million
⇘ decelerating

Net debt — total debt minus cash — fell 19.2% from a year ago. Mercury used $100 million of cash on hand this quarter to pay down its credit line, bringing total debt repayments to $250 million over the past two quarters and cutting quarterly interest expense by $2.5 million from a year ago.

Diluted share count (27Q1) 61.6 million
⇗ accelerating

Weighted-average diluted shares rose 2.5% from the year-ago adjusted figure (and 4.1% from the basic count used when the US group reported a loss). Employees exercised $19.8 million of stock options during the quarter, and the defense supplier bought back no shares under its $200 million authorization.

Capital expenditures (27Q1) $10.4 million
⇗ accelerating

Spending on property and equipment rose 59% from $6.5 million a year ago, reaching 4.1% of sales compared with 2.9% last year. Farnsworth is directing more capital into factory automation and production capacity after full-year equipment spending already stepped up to $34.3 million in fiscal 2026.

🔮 Guidance

FY27 Revenue Approaching $1.1 billion (double-digit growth)
🠅 raised from Approaching $1.1 billion (approaching double-digit growth)
⇗ accelerating

Raised. Management lifted its growth rate phrasing from approaching double digits to double digits while keeping the ceiling near $1.1 billion, which represents 11.8% growth over fiscal 2026's 53-week total by our math. With Q1 actuals and the Q2 plan in hand, that leaves about $591 million, or 12.4% growth, for the second half despite lapping an extra calendar week in Q4.

Q2 FY27 Revenue Up ~10% YoY (~$256.2 million by our math)
⇘ decelerating

New. The plan calls for 10% growth from last year's $232.9 million, which means about $256 million of sales by our math — up slightly from the first quarter. Management expects quarterly revenue to rise through the rest of the year.

FY27 Adjusted EBITDA and Margin ~$210 million (~40% YoY growth); high-teens margin
🠅 raised from Approaching $200 million (nearly 30% YoY growth); high-teens margin
⇘ decelerating

Raised. The profit target moved up by more than $10 million to around $210 million, or 40% growth over last year's $150.2 million. At $1.1 billion of sales, that implies a 19.1% full-year margin and 18.3% in the second half by our math — below Q1's 22.3% because Q1 had an unusually rich product mix.

Q2 FY27 Adjusted EBITDA Margin Up ~500 bps YoY (~17.9% by our math)
⇘ decelerating

New. Adding 5 percentage points to last year's 12.9% second-quarter margin points to about 17.9% by our math, or roughly $46 million of adjusted EBITDA. The company expects margins to climb in each quarter after Q2.

FY27 Free Cash Flow Conversion Approaching 40% of adjusted EBITDA (~$84 million by our math)
🠅 raised from Approaching 35% of adjusted EBITDA (~$70 million by our math)
⇄ reversing

Raised. The share of adjusted EBITDA turning into free cash flow moved up 5 percentage points, lifting implied full-year cash generation from about $70 million to $84 million by our math. After Q1's $24.4 million cash drain, that requires about $108 million of free cash flow across the remaining three quarters, starting with positive cash flow in Q2.

❓ Key Questions

How much did one-off product mix add to Q1 margins?

Adjusted EBITDA margin hit 22.3% in Q1, yet the plan has it dropping to about 17.9% in Q2. Investors need to know how much of the Q1 jump came from temporary product mix versus permanent backlog repricing.

Are international deliveries recovering at the Swiss partner?

Foreign revenue dropped 15.5% last year after Mercury outsourced Swiss manufacturing to Cicor, and management promised the bottleneck would unwind by the second quarter. The release gave no geographic numbers to show if shipments are back on track.

How much of the $2.1 billion backlog is non-cancellable?

At year-end, remaining performance obligations under accounting rules were $1.08 billion, almost $900 million below headline backlog because cancellable orders are excluded. Did this quarter's $370 million of bookings narrow that gap?

What is the revenue size of Golden Dome and F-35 wins?

The presentation highlighted an F-35 electronic warfare competitive takeaway and early Golden Dome missile tracking funds, and credited early defense tailwinds for the outlook raise, without disclosing the dollar value of any award.