Total inventories of merchant wholesalers, except manufacturers' sales branches and offices, after adjustment for seasonal variations but not for price changes, were $633.5 billion at the end of May, up 0.6 percent (±0.2 percent) from the revised April level. Total inventories were up 5.9 percent (±3.7 percent) from the revised May 2017 level. The April 2018 to May 2018 percent change was revised from the advance estimate of up 0.5 percent (±0.2 percent) to up 0.6 percent (±0.2 percent).

The May inventories/sales ratio for merchant wholesalers, except manufacturers' sales branches and offices, based on seasonally adjusted data, was 1.24. The May 2017 ratio was 1.31.