Mueller Water Products, Inc. (MWA) Income Statement

The 4.1% growth in Q3 2026, while modest, marks a sequential acceleration from the prior quarter's 3.1%, suggesting that the municipal replacement cycle is providing a stable base. The 8.7% revenue growth in Q3 2025, as reported in the data, indicates that the company is benefiting from federal infrastructure spending, particularly in lead service line replacements. However, the residential segment remains a drag, as higher interest rates continue to dampen new subdivision development, which may cap growth in the near term.

The 39.4% gross margin in Q3 2026 is the highest in the reported period, up from 36.1% in Q2 2025, indicating that the new brass foundry is delivering on its promised cost savings. This expansion suggests that MWA is gaining pricing power or benefiting from lower input costs, but investors should monitor whether this is sustainable as commodity prices fluctuate. The margin is still below peers like AWK (43.3%), but MWA's heavy manufacturing base justifies a discount; the trend is clearly positive.

The 20.4% operating margin in Q3 2026, up from 19.4% in the prior year, indicates that MWA is scaling efficiently. SG&A expenses fell to $64.0M from $71.0M in Q3 2025, a 9.9% decline, which is notable given the revenue increase. This suggests that management is controlling overhead costs effectively, possibly due to the completion of the foundry ramp and improved operational discipline. The operating leverage is also evident in the 440 bps adjusted EBITDA margin expansion cited by management, which appears to be accelerating beyond the foundry ramp alone.

The reduction in COGS ratio by 110 bps year-over-year indicates that the new brass foundry is lowering production costs, likely through improved yields and energy efficiency. SG&A's absolute decline despite revenue growth suggests that management is maintaining tight control over overhead, possibly through the successful implementation of cost-saving initiatives. This cost discipline is a key driver of the margin expansion, but investors should monitor whether it can be sustained as the company invests in growth initiatives.

The Q4 2024 quarter was a trough, with gross margin at 31.8% and operating margin at 8.2%, likely due to foundry start-up costs and operational disruptions. Since then, margins have expanded consistently, reaching 39.4% gross and 20.4% operating in Q3 2026, indicating that the foundry ramp is delivering significant efficiencies. This inflection is not just a one-time event; it appears to be a structural improvement in the cost base, which could support higher margins going forward. The lasting impact is a more competitive cost structure that may allow MWA to invest in growth while maintaining profitability.