Steel Dynamics Inc. (NASDAQ:STLD)

The total inventory profile exhibits a period of relative stability between 2017 and 2020, followed by a substantial expansion in 2021. Total inventory values increased from approximately $1.52 billion in 2017 to $3.53 billion by the end of 2021, representing a significant escalation in asset holdings during the final year of the analyzed period.

Raw Materials Analysis

Raw materials constitute the largest component of the inventory portfolio. While values fluctuated between $675.7 million and $810.8 million from 2017 to 2020, a sharp increase occurred in 2021, with the value rising to $1.87 billion. This surge indicates a significant accumulation of inputs, potentially driven by strategic stockpiling or increased raw material pricing.

Supplies Growth Trends

Supplies demonstrated a consistent and linear upward trajectory throughout the five-year period. Starting at $374.5 million in 2017, the value grew steadily each year to reach $552.6 million by December 31, 2021, reflecting a gradual increase in operational support materials.

Work in Progress and Finished Goods

Both work in progress and finished goods followed a pattern of moderate fluctuation until 2021. Work in progress rose from $162.8 million in 2020 to $402.2 million in 2021. Similarly, finished goods increased from $389.9 million in 2020 to $706.0 million in 2021. The simultaneous spike across these categories suggests a broader increase in production volume and inventory buildup throughout the manufacturing cycle.

Overall Inventory Composition

The composition of total inventory shifted toward a heavier reliance on raw materials by 2021. The growth in total inventory from 2020 to 2021 was primarily driven by the $1.08 billion increase in raw materials, which outweighed the combined growth of supplies, work in progress, and finished goods.