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CACI Defense IT · Government services · Defense · National security · Thesis updated August 11, 2026

CACI pays down debt while growth and margins expand

01 Running thesis

Strong finish to the year with falling debt

CACI ended fiscal 2026 in a much stronger position. Revenue grew 11% for the year, and EBITDA margins reached 12.3%. The company also issued strong guidance for fiscal 2027, expecting revenue between $10.65 billion and $10.85 billion.

The ARKA Group acquisition was a big change earlier in the year. It added space and other high-priority mission work, but it also increased debt. The main question was how quickly CACI could pay that down.

In the fourth quarter, CACI showed it can generate the cash needed to fix the balance sheet. Pro forma net debt to TTM EBITDA dropped to 3.7x, down a half turn in just one quarter. Management expects to reach the low threes by June 2027, clearing up a major risk for the stock.

The bull case relies on CACI continuing to win complex, fixed-price work in areas like space and counter-drone systems. A recent $500 million award for the Domestic Shield program proves this strategy is working. The main risk remains the high valuation and reliance on federal budgets.

Aug 2026CACI reported strong fiscal 2026 results with 11% revenue growth and rapidly reduced its debt leverage to 3.7x after the ARKA acquisition.
Apr 2026Q3 FY2026 showed faster growth, better margins, and raised FY2026 revenue guidance. The ARKA deal added backlog and revenue, but it also made leverage a new central risk.
Apr 2026The Q3 FY2026 10-Q showed organic revenue growth of 6.8% and total backlog of $33.4 billion, up 6.4% from a year earlier. Higher tax expense remained a drag on net income growth.
Jan 2026Backlog rose for the second straight quarter to $32.8 billion, and operating cash flow improved for the six-month period. The focus shifted toward turning wins into profitable cash flow.
Oct 2025Backlog returned to year-over-year growth, reaching $33.9 billion. That eased the earlier concern that future revenue visibility was starting to weaken.
Aug 2025FY2025 revenue and net income were strong, but total backlog fell 0.6% to $31.4 billion. That made future contract conversion the main watch item.
Apr 2025Revenue growth stayed strong and backlog was still above the prior year. Higher debt-related interest and amortization costs made the acquisition strategy more important to prove.
Jan 2025Revenue rose sharply and backlog reached $31.8 billion after Applied Insight and Azure Summit joined the company. The added debt introduced a balance sheet risk to track.
02 Business model

Paid by Uncle Sam

CACI sells people, software, systems, and technical know-how to government agencies. The work covers defense, intelligence, cyber, space, secure networks, and mission support. The U.S. federal government provides almost all of the company's revenue.

The company earns revenue through several contract types. CACI is actively shifting toward fixed-price work, which now approaches 35% of the revenue mix. Fixed-price contracts can expand profit margins if the company performs well, but they can hurt earnings if costs run over plan.

CACI builds an advantage through trust and access. Many jobs need workers with security clearances, deep mission knowledge, and a record of doing sensitive work. This makes it hard for a new rival to replace CACI quickly. Still, this is a competitive market, and the government can delay awards or change procurement methods.

03 Product portfolio

Mission work, not consumer tech

Steady

Digital Solutions

This covers application modernization, data analytics, and software work for government customers. It helps agencies update old systems and use data faster.

Growth engine

C3I

C3I means command, control, communications, and intelligence. These systems help military and intelligence users share information and act on it.

Growth engine

Cyber

CACI provides cyber defense and related services for sensitive government networks. Demand is tied to the need to protect defense and intelligence systems.

Growth engine

Space

Space work includes domain awareness and optical communications. The ARKA Group acquisition expands CACI in high-priority space missions.

Growth engine

Counter-UAS

Systems like SkyValor and BEAM help defend against drone threats. This area recently won a $500 million Domestic Shield award.

Steady

Engineering Services

These teams help integrate and modernize platforms. The work can be long-lived when it sits inside major defense programs.

Cash cow

Enterprise IT

CACI manages secure cloud, networks, and IT services for government customers. This work is less flashy, but it can be recurring and important.

Steady

Mission Support

Mission Support includes intelligence analysis, logistics, and other services that keep agencies running. It depends on skilled staff and security clearances.

04 Business segments

Almost all domestic

Domestic Operations97%modest
International Operations3%flat

Segment mix is from the fiscal year ended June 30, 2025. Domestic Operations were 97.0% of revenue, while International Operations were 3.0%, showing CACI is heavily concentrated in U.S. government work.

05 Risk factors

What could break the story

U.S. budget shock

High impact · Medium odds

CACI depends heavily on federal spending. A budget cut, shutdown, or shift away from CACI’s program areas could slow awards and revenue.

We watchWatch U.S. defense and intelligence budget actions, continuing resolutions, and CACI’s quarterly revenue guidance.

Debt levels

Medium impact · Medium odds

The ARKA deal lifted leverage, but pro forma net debt to TTM EBITDA fell to 3.7x in the fourth quarter. Management targets the low threes by June 2027. This is manageable if cash flow stays strong, but it leaves less room for mistakes.

We watchWatch net debt to TTM EBITDA each quarter and whether free cash flow is used for debt paydown.

Procurement shifts

Medium impact · Medium odds

Customers are increasingly using nontraditional procurement methods like Other Transaction Authority awards. While this helps CACI win work faster, it can make traditional metrics like backlog and book-to-bill harder for investors to track.

We watchWatch book-to-bill, total backlog, funded backlog, and management comments on award timing.

Fixed-price cost overruns

Medium impact · Medium odds

Fixed-price contracts are approaching 35% of revenue. Under these contracts, CACI can lose margin if labor, materials, or schedule costs exceed its bid.

We watchWatch EBITDA margin, program charges, and any comment about underperforming contracts.

Clearance and audit problems

High impact · Low odds

Many CACI jobs need cleared employees and approved government systems. If the company cannot keep clearances, pass audits, or meet contract rules, it could lose work or face penalties. This risk is hard to see early but serious when it appears.

We watchWatch SEC risk updates, government audit findings, suspension notices, and hiring comments for cleared roles.
06 Quick answers

In one breath

What does CACI International do?

CACI provides technology and expertise services to government customers. Its main areas include defense, intelligence, cyber, space, enterprise IT, and mission support.

Who are CACI’s biggest customers?

The U.S. federal government is the main customer. Contracts with the federal government make up almost all of the company's revenue, with a heavy focus on the Department of Defense.

Why does the ARKA acquisition matter?

ARKA adds work in high-priority mission areas, including space capabilities. It added revenue and backlog, but it also raised debt, which CACI is now paying down.

Is CACI a growth stock or a value stock?

CACI shows real growth, with 11% revenue growth in FY2026 and expanding margins. But the valuation is not cheap enough to ignore the risks of government budget cycles.

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