CACI International (CACI) Q2 2026 earnings review
Margins Expand as M&A Takes Center Stage
CACI delivered a profit-focused quarter, with EBITDA margins expanding to 11.8% despite revenue growth decelerating to 5.7% (4.5% organic). While top-line momentum has cooled compared to the double-digit growth of FY25, the company's bottom-line execution is superior, driving a 14.5% increase in Adjusted EPS. The headline story, however, is capital allocation: CACI announced the $2.6 billion all-cash acquisition of ARKA Group, aggressively expanding its space-based sensor and intelligence capabilities. Management raised full-year guidance across all metrics, signaling confidence in the integration and core business stability.
🐂 Bull Case
Profitability is accelerating. EBITDA margin hit 11.8%, up 70bps YoY. This is driven by a favorable mix shift: 'Technology' segment revenue grew 10.4%, while lower-margin 'Expertise' revenue was flat (-0.2%).
The $2.6B acquisition of ARKA Group is a major pivot toward high-value space sensors and ground-based processing. Combined with the $151B SHIELD IDIQ award, CACI is entrenching itself in the high-priority space/counter-space domain.
🐻 Bear Case
Top-line growth has slowed significantly. Revenue growth dropped to 5.7% (from ~11-14% in prior quarters), and organic growth dipped to 4.5%. The 'Expertise' segment is contracting.
Contract awards came in at $1.4B against $2.2B in revenue, resulting in a weak 0.63x book-to-bill ratio. While backlog grew slightly (+3.1% YoY), the immediate booking pace lagged the burn rate this quarter.
⚖️ Verdict: 🟢
Bullish. While the revenue deceleration is notable, the structural shift toward higher-margin Technology revenue is working. The ARKA acquisition is a bold, strategic use of capital that targets the highest-growth defense vertical (Space). Raised guidance confirms the outlook remains robust.
Key Themes
Technology Segment Outperformance
A clear divergence has emerged in CACI's portfolio. The 'Technology' segment is accelerating, growing 10.4% YoY to $1.3B, while the 'Expertise' (services) segment contracted 0.2% to $924M. This mix shift is the primary engine behind the EBITDA margin expansion to 11.8%, as Technology work typically carries higher margins than labor-based Expertise work.
Cash Flow Inflection
Accelerating. Free Cash Flow (FCF) surged 109% YoY to $138.2M. Management cited strong working capital management and higher net income. This is a sharp reversal from previous periods where working capital was a headwind. The company raised FY26 FCF guidance to 'at least $725M'.
Book-to-Bill Volatility
Decelerating. After a massive Q1 ($5.0B awards), Q2 awards dropped to $1.4B, implying a book-to-bill ratio of ~0.63x. While lumpiness is common in government contracting, consecutive weak booking quarters would jeopardize the FY27 growth outlook. Total backlog growth (+3.1%) is positive but modest compared to revenue growth.
Leverage & Capital Allocation
The $2.6 billion ARKA acquisition is an all-cash transaction. With only $423M in cash on hand as of Dec 31, 2025, CACI will likely incur significant new debt to fund this deal. This shifts the capital allocation narrative from 'flexible' to 'deleveraging' for the foreseeable future, likely pausing share buybacks.
Expertise Segment Stagnation
Reversing. The Expertise segment (professional services) has turned negative, shrinking 0.2% YoY. While this aids margins via mix shift, it creates a drag on total top-line growth. If this segment continues to shrink, CACI becomes entirely dependent on the Technology segment to drive growth.
Other KPIs
Stable. Up 7.3% YoY. This is a more reliable indicator of near-term revenue than total backlog. The growth here outpaces the total backlog growth (3.1%), suggesting solid funding conversion on existing contracts.
Deteriorating slightly. Up from 53 days a year ago (ex-MARPA). While cash flow was strong, the elongation of the cash cycle suggests some collection friction, possibly related to government administrative delays previously flagged by management.
Stable. Remained flat at 59% of revenue. Fixed-price revenue dropped slightly to 26.9% (from 28.7%). Maintaining a balance here is key for risk management.
Guidance
Accelerating. Raised from prior range of $9.2 - $9.4B. The midpoint implies ~9% YoY growth for the full year. Given 8.4% growth in H1, this implies a back-half acceleration, likely baking in some contribution from recent wins or acquisitions.
Accelerating. Raised significantly from $27.13 - $28.03. The new midpoint ($28.59) represents ~8% growth over FY25's $26.48. The raise magnitude exceeds the revenue raise, highlighting the margin leverage in the model.
Stable/Positive. Raised from 'at least $710 million'. This reflects the strong H1 cash performance and tax benefits ($50M Section 174 benefit + $40M tax refund) expected to materialize.
Key Questions
ARKA Financing & Leverage
The ARKA acquisition is $2.6 billion all-cash, but you ended the quarter with $423 million in cash. What is the pro-forma net leverage ratio post-close, and how will this impact your ability to continue share repurchases or other M&A in FY26/FY27?
Booking Volatility
Book-to-bill was approximately 0.6x in Q2 following a massive Q1. Can you parse out the lumpiness here? Were there specific award delays in Q2, and should we expect a rebound above 1.0x in Q3?
Organic Growth Deceleration
Organic revenue growth slowed to 4.5% in Q2 from 5.5% in Q1 and 8.1% a year ago. Is this purely due to the contraction in the Expertise segment, or are you seeing slower task order velocity in the Technology portfolio as well?
Expertise Segment Strategy
The Expertise segment contracted YoY. Is this a managed runoff of lower-margin legacy work, or a demand signal from the customer? Do you expect this segment to return to growth in FY26?