Wholesale inventories rose 0.4 percent in March but are far below  the 2.4  percent rise in sales, a mismatch that pulled the  inventory-to-sales ratio down  3 tenths to a record low of 1.13. This  mismatch is not due to price swings but  is fundamental and reflects  company reluctance to build stocks as the durables  ratio fell 2 tenths  to 1.50 vs. a 3 tenth slide for non-durables to  0.83.
But the durables side does  show solid evidence of accelerating  build with inventories up 0.8  percent on top of a 0.6 percent rise in February.  Inventories of  metals, computers, electrical goods, lumber and autos all rose.   Wholesale sales of durables show wide and more significant gains led by  lumber,  metals, furniture and machinery. The rise in lumber and  furniture sales points  to improvement in the housing sector while  metals and machinery point to  improvement in the industrial sector.
Inventories of  non-durables slipped  0.2 percent showing big draws in farm products and  paper products. On the sales  side, non-durables jumped 2.8 percent  reflecting increases in petroleum, drugs  and alcohol.
Factory inventories have  begun to build and so are wholesale  inventories, though the rate of  increase is lagging the increase underway in  sales as companies hold on  as long as they can to fat profit margins. Retail  inventories have  also been inching higher though the heavy sales in March may  have drawn  down inventories in the sector.