The ACOGNO series represents manufacturers’ new orders for consumer
goods, which are products purchased by individuals for personal or
household use . According to the Federal Reserve’s notes, this series is
a “topical regrouping of the separate industry categories” —meaning it
aggregates data from various manufacturing industries that produce
consumer-facing products rather than following standard industry
classification boundaries
Inventory levels reveal how manufacturers expect demand to behave in the near future:
Rising Inventories (Accumulation): When businesses increase their stockpiles of durable goods (like machinery, steel, or electronics components), it typically signals optimism. They are building up supply in anticipation that customers will place orders soon. This suggests expected economic expansion .
Falling Inventories (Liquidation): When manufacturers allow inventories to shrink, it often indicates caution. They may be drawing down existing stock rather than producing new goods because they are uncertain about future demand, which can be a warning sign of a slowing economy .
Inventories are a core component of the business cycle. Changes in AMDMTI can signal recessions or recoveries before other indicators do:
Involuntary Accumulation (A Warning Sign): If new orders (DGORDER) are falling but inventories (AMDMTI) are still rising, it means goods are piling up because sales are slower than expected. This “involuntary inventory build” often forces manufacturers to cut production and reduce hours, which can tip the economy into a downturn .
Inventory Liquidation (The Trough): Conversely, when inventories have been drawn down to very low levels (relative to sales), it creates a “restocking” imperative. Even a small uptick in demand forces factories to ramp up production, fueling economic recovery .
While AMDMTI is useful on its own, its real power comes from comparing it to sales data. The Federal Reserve uses AMDMTI to calculate the Inventories-to-Shipments Ratio (AMDMIS) , which measures how many months it would take to deplete current inventory at the current sales pace.
A High I/S Ratio (Risk): If durable goods inventories are high relative to shipments, it suggests overstock. Companies may be forced to offer discounts (cutting into profits) or slash production (leading to layoffs) to clear the excess .
A Low I/S Ratio (Opportunity): If inventories are lean relative to shipments, it indicates efficiency and strong demand. However, if the ratio gets too low, it risks supply chain bottlenecks and lost sales due to stockouts .