American companies that supply chips, antennas and other gear to ZTE Corp. are bracing for a sizable revenue loss after the U.S. last week said they no longer would be able to sell components to the Chinese telecommunications giant.
Several ZTE vendors watched their stock prices stumble in recent days, collateral damage after the Commerce Department put in place a seven-year ban, as national-security and trade-related tensions flare up between the U.S. and China. Giants such as San Diego chip maker Qualcomm Inc. and niche...