WMS

Advanced Drainage Systems is the leading US manufacturer of thermoplastic water-management solutions — corrugated HDPE/PP pipe, stormwater chambers, filters and Allied Products — serving non-residential, infrastructure and agricultural markets. The structural story is attractive: the 10-K highlights ongoing 'material conversion' as customers replace concrete, steel and PVC with lighter, more durable, cheaper-to-install thermoplastic pipe, plus a high-margin Allied Products cross-sell (less resin-sensitive) and the recent NDS acquisition broadening the offering. The economics are excellent — 38.3% gross margin, 20.3% operating margin, 14.0% net margin and a 22.9% ROE — backed by a strong FY2026 with revenue up 5.0% to $3.05B and operating cash flow up 40.9% to $819M.

The blemish is the earnings trajectory. Despite the revenue rebound, net income fell 5.3% to $426M, operating income dropped 5.8% to $619M, and diluted EPS slipped 5.6% to $5.44 — the second consecutive annual decline from the $510M FY2024 peak. The business is cyclical and, per the filing, 'sensitive to general economic conditions' across construction, agriculture and infrastructure, with profitability dependent on passing resin and tariff-driven raw-material costs through to customers. Leverage has crept up — long-term debt rose 28.3% to $1.61B (1.37x liabilities/equity) and cash fell 51.9% to $223M — partly funding the NDS deal.