SIFCO vs. CPI Aero: Which Aerospace & Defense Stock Is the Better Buy?

Aerospace and defense manufacturers remain tied to aircraft production, aftermarket activity and government defense spending, while demand for specialized components continues to support suppliers across the industry. Against this backdrop, SIFCO Industries, Inc. SIF and CPI Aerostructures, Inc. CVU are two manufacturers serving the aerospace and defense markets. SIF manufactures forgings, machined components and sub-assemblies primarily for aerospace and defense, energy and commercial space applications. CVU manufactures structural assemblies and integrated systems and provides kitting and related services for domestic and international aerospace and defense customers.

While both companies operate within the broader aerospace and defense manufacturing space, their business exposure differs. SIFCO serves aerospace and defense alongside energy and commercial space markets, while CPI Aero is more concentrated on aerospace and defense programs. These differences in business focus and end-market exposure create distinct investment profiles, raising the question: which company is better positioned to create long-term shareholder value? Let's take a closer look.

Stock Performance & Valuation: SIF vs. CVU

SIF (down 1.5%) has underperformed CVU (up 6.1%) over the past three months. However, in the past year, SIFCO stock has rallied 187.2% compared with CPI Aero stock’s surge of 104.8%.

Image Source: Zacks Investment Research

Meanwhile, SIF is trading at a trailing 12-month enterprise value-to-sales (EV/S) ratio of 1.3X, above its median of 0.3X over the past five years. CVU’s trailing 12-month EV/S multiple sits at 1.2X, above its last five-year median of 0.7X. SIF and CVU both appear to be cheap when compared with the Zacks Aerospace sector’s average of 2.9X.

Image Source: Zacks Investment Research

Factors Driving SIFCO Stock

SIFCO is benefiting from stronger activity across key military programs, including munitions, rotorcraft and other defense platforms. Higher demand and favorable pricing across several programs have strengthened the military side of the portfolio, helping offset softer trends in some commercial and space-related applications. This broader program participation supports production volumes and reinforces SIF’s position as a supplier of critical forged and machined components.

SIFCO’s order backlog has expanded meaningfully from the prior-year level, giving the company better visibility into future production requirements. The larger order book indicates that booked work extends beyond near-term shipments and provides a firmer base for planning manufacturing activity, workforce needs and capacity utilization. While backlog is subject to modification or cancellation, its growth improves visibility into SIF’s prospective revenue pipeline.

Management continues to emphasize process improvements aimed at increasing throughput and productivity, while recent progress in recruiting and retaining skilled production personnel should support execution. At the same time, operating cash flow has improved, and debt has declined, providing greater financial flexibility to support working-capital requirements and ongoing operations.

Factors Aiding CPI Aero Stock

CPI Aero continues to secure new work across airborne pods, electronic warfare systems and aircraft sustainment programs. Recent awards from L3Harris, the U.S. Air Force and another airborne-pod customer reinforce its position on mission-critical defense platforms and extend production activity over multiple years. These wins also deepen relationships with major defense customers and broaden CVU’s participation across advanced aerospace programs.

The long-term Embraer agreement for Phenom 100EX engine inlet assemblies expands CPI Aero’s commercial aerospace presence and complements its existing Phenom 300 work. The award builds on established production experience and strengthens an important customer relationship, giving CVU another avenue for growth outside its defense-heavy portfolio and improving end-market diversification.

CPI Aero’s recent results reflect a more favorable product mix, improved program execution and disciplined cost management. These factors have supported better margins and a return to profitability, indicating that internal execution is becoming more consistent. Management’s continued focus on quality, delivery and efficiency should help sustain profitability improvements from the existing revenue base.

Choose CVU Over SIF Now

SIFCO and CPI Aero offer investors exposure to improving aerospace and defense demand, but their growth profiles differ. SIFCO is benefiting from stronger military program activity, a larger backlog and improving operational execution, while lower debt provides greater financial flexibility. CPI Aero, meanwhile, is adding work across electronic warfare, airborne-pod and aircraft-sustainment programs while also broadening its commercial aerospace exposure through Embraer. This combination gives CVU multiple avenues for growth rather than relying primarily on one end-market theme.

From a valuation standpoint, both stocks appear inexpensive relative to the broader sector. However, SIFCO trades at a substantially higher premium to its own historical valuation than CPI Aero. This suggests that investors are already assigning greater value to SIF’s recent operational and financial improvement, leaving less room for disappointment if momentum moderates. CVU’s valuation has also expanded from historical levels, but the increase is comparatively less pronounced, implying somewhat less demanding market expectations.

SIFCO’s improving defense demand, backlog and financial position remain encouraging, but its strong share-price appreciation raises the hurdle for further re-rating. CPI Aero combines expanding defense awards, greater commercial diversification and improving operating execution with less demanding market expectations. On balance, CVU appears to offer the more attractive risk-reward profile and looks like the better buy at current levels.

Zacks' Research Chief Names "Stock Most Likely to Double"

Our team of experts has just released the 5 stocks with the greatest probability of gaining +100% or more in the coming months. Of those 5, Director of Research Sheraz Mian highlights the one stock set to climb highest.

This innovative software-as-a-service firm upped its user base +22% year over year. That rate is increasing and margins are expanding as AI efficiencies take effect. Of course, all our elite picks aren't winners, but this one could far surpass earlier Zacks' Stocks Set to Double like D-Wave Quantum, which shot up +680.1%.

Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report

This article originally published on Zacks Investment Research (zacks.com).

Zacks Investment Research