Costco CEO explains how the chain kept prices low as tariffs and egg costs hit retailers hard

Customers exit a Costco Warehouse in Pennsylvania.

Gene Puskar/AP

• Costco rerouted some imports and found US-made alternatives in the wake of tariffs, executives said.
• The chain also dealt with higher butter and egg costs by taking a profit-margin hit on some items.
• Costco tracks key commodity prices "daily, and if not hourly," its CEO said.

Shoppers have faced higher prices due to tariffs and bird flu this year.

Costco, meanwhile, has worked to avoid...