Shares of technology and industrial companies reliant on Chinese demand slid Monday, a sign President Trump’s latest tariff threat is eroding the optimism that has supported markets so far this year. Apple Inc. and several semiconductor stocks slid about 3.5% or more early Monday, along with heavy-machinery maker Caterpillar Inc. and copper producer Freeport-McMoRan Inc. Growth in the world’s second-largest economy is a key revenue driver for those companies, as are global trade flows.

Source: Wall Street Journal May 06, 2019 14:59 UTC