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Mercury Systems, Inc. (MRCY)FY2026 investor yearly review
Across FY2026, management shifted from delivery acceleration as the primary “optics” lever to a more repeatable backlog-conversion narrative. Record bookings in Q4 improved visibility for FY2027, while margin progression and free-cash-flow conversion stayed execution-dependent around supply-chain staging and working capital.
Overall investor read
Execution-driven, improving but still conversion-sensitive
Management highlighted repeatable delivery acceleration and improving margin mix, yet emphasized that accelerations depend on material timing and backlog conversion.
Primary financial signal
Gross margin steady higher; free cash flow tougher early
FY2026 gross margin finished at 28.6% while free cash flow totaled $68.09M, with quarterly outflows in Q1 and Q3.
Primary call signal
Q4 bookings unlocked enhanced FY2027 organic growth visibility
Management cited record Q4 bookings and next-12-month backlog coverage, then increased targeted organic growth while acknowledging tailwinds weren’t fully embedded.
Headline FY2026 metrics summarizing revenue, profitability, and cash generation.
Revenue
Revenue grew 7.9% YoY on expanding backlog and deliveries.
Revenue growth
Management framed growth as organic, with Q2/Q4 benefit shifts.
Gross margin
Finished higher; management linked progress to backlog margin mix.
Operating margin
Operating profitability remained limited, despite gross margin gains.
Free cash flow
FCF total is positive but down YoY; working capital timing mattered.
Free cash flow margin
Cash conversion ended at 6.9%, with early quarters volatile.
Operating cash flow
Operating cash flow declined 26.3% YoY; collections and timing were key.
Net debt
Net debt finished at $273.02M, with working-capital improvement guiding liquidity.
Management built confidence through backlog conversion: early quarters emphasized delivery acceleration, then Q3/Q4 framed improved staging and visibility for margins and cash.
Execution and delivery
Across Q1 to Q4, management repeatedly connected performance to accelerating deliveries once material arrived, while cautioning that near-term outlook couldn’t assume additional accelerations. By Q3, they described pulling supply due dates “to the left” to reduce forecasting uncertainty and improve organic growth linearity.
Quarter-by-quarter materiality and tone for annual transcript themes.
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| Theme | Q1 | Q2 | Q3 | Q4 | Next monitor |
|---|---|---|---|---|---|
| Material staging enabled delivery pull-forward and steadier visibility | Mixed Acceleration helped Q1 optics; outlook avoided assuming more delivery pull-forward |
Management converted improving operational muscle into record bookings and margin progress, but cash conversion stayed quarter-sensitive and margin outcomes depended on backlog composition and execution timing.
By Q3, management described moving supply due dates earlier (“pulling to the left”), reducing delivery-cycle uncertainty. This was then reflected in Q4’s record bookings and enhanced visibility for organic growth.
Gross margin trended upward over the year, with FY2026 gross margin at 28.6%. Management repeatedly attributed progress to converting lower-margin backlog and adding bookings aligned with the target margin profile.
Management described Q4’s record bookings as broad based across products and solutions, including the largest CPA-quarter bookings. This increased next 12 month backlog coverage and supported FY2027 outlook confidence.
Across Q1–Q4, management moved from delivery acceleration and working-capital focus to a more repeatable staging narrative. Q4 closed with record bookings and improved FY2027 visibility.
Backlog mix improved; cash conversion varied
Product breakdown bars are scaled against the largest annual revenue item; labels show revenue, YoY change, and revenue share.
Regional breakdown bars are scaled against the largest annual revenue item; labels show revenue, YoY change, and revenue share.
Q1 emphasized delivery acceleration and backlog mix to improve margins and cash drivers, Q2 broadened confidence but highlighted low-margin conversion headwinds. Q3 introduced a staging pivot for better linearity and raised FY expectations. Q4 delivered record bookings and strengthened FY2027 visibility while still qualifying embedded tailwinds.
Management reported ahead-of-expectations performance tied to accelerating customer deliveries, improving gross margin via backlog mix, and reducing net working capital. However, they cautioned that it hadn’t factored further accelerations into Q2 and the rest of FY2026 due to constraints line-of-sight.
Read earnings transcriptManagement delivered record first-half revenue, strong bookings, and meaningful free cash flow inflow, but gross margin dipped as they converted more low-margin backlog. They again explained that material timing constrained how much acceleration could be assumed into Q3.
Key monitoring items reflect management’s own framing of what drives repeatability: supply staging, backlog conversion, mix into margin targets, and the mechanics behind working capital and unbilled/deferred balances.
Management’s margin and growth profile depends on converting legacy low-margin backlog and replacing it with target-profile bookings.
Listen for backlog margin convergence language and how gross margin responds to mix and net EAC/manufacturing adjustment drivers.
Delivering units ahead of plan supports optics and cash, but management emphasized uncertainties until materials are in hand.
Margin quality
Management framed gross margin and adjusted EBITDA improvement as a mix shift: converting lower-margin backlog and replacing it with bookings aligned to targeted margin profile. Q2 acknowledged gross margin pressure from lower-margin conversion, while Q3/Q4 described continuing convergence as backlog margin increased.
Cash conversion
Management used net working capital as the through-line for free cash flow. Q1 showed free-cash-flow outflow despite working-capital reduction focus; Q2 and Q4 showed inflows/positive conversion. In Q3, they described mitigating a planned Q3 outflow through improved billed collections and continued expectations for positive Q4 cash flow.
Growth engine
While management highlighted broad demand, they repeatedly singled out CPA as a differentiated area: Q1 described accelerated CPA-related deliveries and Phoenix capacity plans; Q3 described strongest CPA bookings and follow-on orders. By Q4, management claimed CPA produced the largest-quarter bookings and used it to reinforce confidence in growth prospects.
Point-in-time revenue peaked, but management linked accelerations to material certainty
Positive Supply due dates “pulled left” improved linearity and forecast confidence |
Positive Overtime revenue strength and bookings supported improved execution visibility |
| Watch mentions of supply staging, point-in-time revenue, kit completion constraints, and backlog conversion pace. |
| Burning low-margin backlog supported margin progression | Positive Gross margin up YoY as backlog mix converted into higher margin | Negative Gross margin eased as lower-margin backlog conversion increased | Positive Gross margin rose with lower net EAC impacts and mix improvement | Positive FY gross margin benefited from reduced net EAC and manufacturing adjustments | Track gross margin commentary, backlog margin convergence, and net EAC/manufacturing adjustment drivers. |
| Working capital progress improved cash outcomes, uneven by quarter | Mixed Net working capital down, but Q1 free cash flow remained negative | Positive Free cash flow inflow as net working capital hit lowest since 2022 | Mixed Planned Q3 outflow mitigated by improved billed receivables collections | Positive Full-year free cash flow positive, net debt reduced with working capital improvements | Monitor net working capital, unbilled receivables, deferred revenue buildup, and free cash flow quarter-to-quarter. |
| Common Processing Architecture ramp strengthened bookings momentum | Positive Accelerated CPA deliveries and Phoenix capacity plans supported growth narrative | Positive CPA orders included StarLab anti-tamper and cybersecurity embedded value | Positive Strongest CPA bookings quarter reinforced follow-on production ordering | Positive Largest CPA-quarter bookings strengthened differentiation and FY2027 confidence | Track CPA backlog conversion, Phoenix ramp capacity updates, and follow-on orders for current versus smaller form factors. |
| Global defense tailwinds improved visibility but weren’t fully embedded | Neutral Management cited potential tailwinds from Golden Dome and global budgets | Neutral Optimism continued for Golden Dome-driven upside without booking specificity | Positive Management described more robust pipeline and potentially earlier tailwind manifestation | Mixed Record bookings boosted FY2027 outlook, yet tailwinds and Palantir weren’t embedded | Watch for management language that tailwinds remain outside outlook, plus booking conversion from multiquarter conversations. |
| Phoenix scaling and capacity flexibility supported efficient ramping | Positive Phoenix factory space build-out targeted ramped CPA production | Positive 50,000 square feet additional space progressed for CPA scaling | Positive Initiated operations in expanded space as supply alignment improved | Monitor factory footprint expansions, supply-base alignment, and whether overtime revenue rises without margin/cash deterioration. |
Management consistently linked free cash flow to net working capital reduction, with progress discussed in each quarter. Q2 and Q4 showed especially strong cash outcomes compared with Q1/Q3 volatility.
In Q1 and Q2, management explained the challenge of not having line of sight on constraints until later in the quarter and therefore avoided baking further accelerations into outlook.
Gross margin dipped in Q2 as lower-margin backlog conversion increased, and management discussed that legacy effects could extend through FY2027. They emphasized shrinking impact over time rather than elimination in one period.
Management highlighted that cash can vary quarter-to-quarter based on billing and shipment timing. Q1 and Q3 included free-cash-flow outflows despite net working capital improvement efforts.
Q4 and Q1 commentary described allocating factory capacity to programs with unbilled receivable balances to drive free cash flow, but with little or no revenue impact—raising execution tradeoffs investors watched.
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| Quarter | Revenue | YoY revenue growth | Diluted EPS | Gross margin | Investor read |
|---|---|---|---|---|---|
| Q1Sep-25 | $225.21M | -17.5% | $-0.21 | 27.9% | Solid Q1 execution supported backlog growth, but management avoided assuming additional in-quarter delivery pull-forward. |
| Q2Dec-25 | $232.87M | 3.4% | $-0.26 | 26.0% | First-half performance impressed, yet gross margin mix and material timing constrained how much momentum could repeat into Q3. |
| Q3Mar-26 | $235.76M | 1.2% | $-0.05 | 25.2% | Higher bookings and a staging pivot supported better forecast visibility and helped margins despite cash fluctuations. |
| Q4Jul-26 | $289.78M | 22.9% | $0.01 | 30.6% | Record Q4 bookings and better margin mix lifted confidence, but management stayed explicit about what remained outside the outlook. |
Management described supply-chain “pulling to the left” as a business shift that improved delivery visibility, reduced forecasting uncertainty, and supported higher organic growth and margin expansion. They raised FY2026 revenue growth expectations toward mid single digits and guided continued positive Q4 cash flow.
Read earnings transcriptQ4 produced record bookings, record revenue, and the highest EBITDA margin of the year, with management attributing strength to material receipt and better supply-chain alignment. They increased FY2027 organic growth targets but explicitly noted multiple tailwinds and Palantir impacts were not yet incorporated.
Read earnings transcriptTrack statements about supply due-date “pull left,” kit completion constraints, and point-in-time revenue as lead indicators.
Free cash flow outcomes were sensitive to billing/ship timing and capacity allocated to unbilled receivable balances.
Monitor net working capital, unbilled receivables movement, deferred revenue dynamics, and quarterly free cash flow swings.
Management repeatedly pointed to CPA differentiation and follow-on orders as a major contributor to bookings strength and demand momentum.
Watch for CPA booking commentary, Phoenix capacity updates, and references to smaller form-factor interest and next TAM expansion.
Management increased FY2027 expectations, but stated several tailwinds and automation partnerships were not yet embedded in the outlook.
Track whether Golden Dome, increased quantities, and Palantir/automation benefits show up in bookings and revised guidance language.
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