Core & Main (CNM) Q1 2026 earnings review

Core & Main Proves Pricing and Margin Power in a Flat Market

Core & Main delivered a masterclass in margin protection during Q1. Despite zero revenue growth ($1.91B vs $1.91B last year) driven by lower core volumes, the company squeezed out a 7.6% increase in Net Income and a 9.6% jump in EPS. The secret? Gross margins expanded 50 bps to 27.2% through disciplined purchasing and private label growth, while aggressive SG&A cost controls curbed the spending spikes seen last year. Coupled with a massive $88M share repurchase—the largest single-quarter open market buyback in company history—management manufactured solid bottom-line growth from a stagnant top line. With FY26 guidance reaffirmed, the company implies a return to organic growth in the coming quarters.

🐂 Bull Case

Structural Margin Expansion

Gross margin reached 27.2%, up 50 bps YoY. The company is successfully executing its private label strategy (targeting 10%+ of sales) and optimizing sourcing, permanently lifting the margin floor.

Aggressive Share Count Reduction

The company repurchased 1.8M shares for $88M in Q1, with another $37M deployed post-quarter. This relentless buyback strategy provides a strong tailwind to EPS even when revenue growth stalls.

🐻 Bear Case

Core Volumes Are Shrinking

Overall revenue was completely flat only because acquisitions offset organic declines. Pipes, valves & fittings and storm drainage all saw lower volumes.

Macro Dependence

The flat top-line is a symptom of a dynamic, cautious macroeconomic environment. A continued slump in residential lot development could force further reliance on M&A to meet growth targets.

⚖️ Verdict: 🟢

Bullish. Generating nearly 10% EPS growth on 0% revenue growth is a testament to CNM's operating leverage, cost discipline, and shareholder-friendly capital allocation. If municipal volumes accelerate as guided, earnings will surge.

Key Themes

DRIVER🟢🟢

Gross Margin Initiatives Bearing Fruit

Gross profit increased 2.0% despite flat sales, driving gross margin up 50 bps to 27.2%. This structural enhancement is driven by expanding the private label assortment and executing disciplined purchasing and pricing management. This allows CNM to disconnect profitability from pure volume growth.

DRIVER🟢

Smart Utility & Treatment Plant Outperformance

While legacy pipe and fitting segments dragged, CNM's targeted sales initiatives continue to vastly outperform the broader market. Treatment plant solutions delivered double-digit growth, and smart utility categories saw high-single-digit growth. These are highly specified, less cyclical projects that embed CNM deeply into municipal infrastructure modernization.

DRIVERNEW🟢🟢

Capital Allocation Leans Heavily into Buybacks

Operating cash flow converted beautifully, generating $82M. Management aggressively deployed $88M to buy back 1.8M shares in Q1, and quickly followed up with another $37M post-quarter. Management is using cash generation to significantly shrink the float, acting as a powerful driver for Adjusted EPS (+5.9%).

CONCERNNEW🔴

Organic Volume Contraction in Core Products

Despite a positive narrative around municipal health, organic growth is negative. Total net sales were essentially flat ($1,910M vs $1,911M), which management explicitly states was due to 'decreased volume that was offset by acquisitions.' Pipes, valves & fittings and storm drainage were the primary laggards.

THEME🟢

Regaining SG&A Leverage

Throughout early FY25, SG&A expenses were growing at a 13-14% clip, severely pressuring margins. In Q1 FY26, SG&A increased by only 2.0% YoY ($299M vs $293M). This proves the $30M annualized cost-out program initiated late last year is taking hold, realigning expense growth with top-line reality.

CONCERN

Macro Drag on Non-Municipal Segments

Management noted solid results 'despite a dynamic macroeconomic environment and strong prior-year comparison.' While municipal demand remains healthy, the flat overall revenue indicates that the softness in residential lot development (noted extensively in FY25) continues to restrict overall company momentum.

Other KPIs

Adjusted EBITDA$226 million

Stable and slightly accelerating. Adjusted EBITDA increased 0.9% YoY, with margins ticking up 10 bps to 11.8%. Higher gross profit entirely offset the modest increase in SG&A expenses.

Operating Cash Flow$82 million

Up from $77M in the prior year. The $5M increase was driven by higher net income and lower working capital investments, demonstrating CNM's ability to pull cash out of the business even when sales stall.

Guidance

FY26 Net Sales$7,800 to $7,900 million

Accelerating vs current run-rate. The reaffirmed guidance implies 2% to 3% full-year growth. Given that Q1 was completely flat (0.0%), CNM must deliver meaningful top-line acceleration in Q2-Q4 to hit this target.

FY26 Adjusted EBITDA$950 to $980 million

Stable. The midpoint ($965M) implies an Adjusted EBITDA Margin of roughly 12.3%, slightly above the 11.8% achieved in Q1, indicating expectations for continued operating leverage and gross margin strength.

FY26 Operating Cash Flow Conversion60% to 70%

Stable. This target as a percentage of Adjusted EBITDA remains consistent with historical norms, signaling no expected deterioration in working capital efficiency or inventory bloat.

Key Questions

Pacing of Organic Growth Recovery

Net sales were flat in Q1 primarily due to volume declines offsetting acquisition growth. What specific indicators give you confidence that organic volumes will inflect positively enough in Q2-Q4 to hit your 2-3% full-year growth target?

Capital Allocation Shift

You executed a massive $88M share repurchase in Q1, significantly outpacing M&A capital deployment for the quarter. Does this signal a temporary lack of actionable M&A targets at acceptable valuations, or a structural shift in how you view the intrinsic value of CNM shares?

Residential Lot Development Bottom

Given the dynamic macroeconomic environment mentioned in the release, have you seen a definitive floor in the residential lot development end market, or is the municipal segment permanently carrying the weight of the company's growth?