US firms warn profit margins are at risk as tariff costs rise

Many US companies have sought to reassure investors that tariffs are “manageable,” but early earnings-season comments suggest profit margins are at risk with consumers balking at higher prices.

Bellwethers including Procter & Gamble (PG.N), Fastenal (FAST.O) and 3M (MMM.N) have flagged the challenges.

Andy Jassy, CEO of retail giant Amazon.com (AMZN.O), told CNBC on the sidelines of the World Economic Forum in Davos, Switzerland the company was seeing prices tick up on...