Squawk Box Europe Express

U.S. markets tumble after Federal Reserve Chairman Jerome Powell says the central Bank is waiting on ‘greater clarity’ of the impact of President Trump’s tariffs. Powell warns that the U.S. economy could face rising inflation and a decreased jobs market as a result of the levies. Nvidia shares slump by 6.87 per cent after revealing a $5bn hit from U.S. export controls. Other semi-conductor companies follow suit into the red. In Europe, Siemens Energy hikes its outlook after a stellar Q2 result. The German firm posts its highest profit margin since being spun off from Siemens almost 5 years ago. And in luxury news, Milan-based fashion house Moncler defies the general slump in the sector to post a Q1 beat.  See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.