Corning Inc. (NYSE:GLW)

Total inventory levels exhibited an upward trajectory from 2019 through 2022, followed by a moderate reduction in 2023. Total inventories rose from US$ 2,320 million in 2019 to a peak of US$ 2,904 million in 2022, before declining to US$ 2,666 million by the end of 2023. This represents an overall net increase of approximately 14.9% over the five-year period.

Finished Goods Analysis

Finished goods consistently represent the largest component of the inventory portfolio. A significant increase occurred between 2019 and 2020, where values rose from US$ 973 million to US$ 1,236 million. Levels remained elevated through 2022, peaking at US$ 1,315 million, before retreating to US$ 1,242 million in 2023.

Work in Process Trends

Work in process remained relatively stable between 2020 and 2021, fluctuating around US$ 358 million. A sharp increase was observed in 2022, with values surging to US$ 571 million. This substantial growth indicates a period of intensified production activity or an accumulation of semi-finished goods, a trend that largely persisted into 2023 with a closing value of US$ 551 million.

Raw Materials and Accessories

Raw materials and accessories experienced notable volatility, decreasing from US$ 481 million in 2019 to US$ 370 million in 2020. This was followed by a steady climb to a peak of US$ 537 million in 2022, and a subsequent reduction to US$ 445 million in 2023, suggesting fluctuations in procurement strategies or supply chain adjustments.

Supplies and Packing Materials

Supplies and packing materials remained the most stable category over the analyzed period. Values fluctuated within a narrow range, peaking at US$ 506 million in 2021 and ending the period at US$ 428 million in 2023, showing less sensitivity to the broader inventory surges seen in other categories.

Aggregate Inventory Composition

The peak in total inventory observed in 2022 was driven by concurrent increases in finished goods, work in process, and raw materials. The contraction in 2023 was primarily attributable to reductions in raw materials and finished goods, while the work in process component remained near its historical high.