Insteel is the largest U.S. manufacturer of steel wire reinforcing products for concrete construction. Its two core product lines are PC strand (prestressed concrete strand) and welded wire reinforcement (WWR). PC strand is a high-strength, seven-wire strand used to reinforce concrete structures like bridges, parking decks, and buildings. WWR includes engineered structural mesh (ESM), concrete pipe reinforcement (CPR), and standard welded wire reinforcement (SWWR). Insteel's customers are primarily concrete product manufacturers (~70% of sales), with the remainder going to distributors and contractors. About 85% of sales tie to nonresidential construction — infrastructure, commercial, and industrial. Insteel sells directly through an in-house field sales force. Insteel's profitability is driven by the spread between selling prices and raw material costs, with hot-rolled carbon steel wire rod as the primary input. Wire rod prices fluctuate with scrap steel markets, and Insteel's selling prices tend to follow with a lag, creating margin variability quarter to quarter. Shipment volume, which is seasonal and tied to construction activity, is the other key revenue driver. Insteel's core strategy is to be the lowest-cost producer, investing in manufacturing efficiency to maintain margins when spreads are thin. The company pursues bolt-on acquisitions to add volume and capture freight and sourcing synergies, as demonstrated by two WWR acquisitions in fiscal 2025. Insteel is debt-free and returns capital to shareholders primarily through special dividends.