The Cboe Volatility Index, known as the VIX, or Wall Street's "fear gauge," shot higher on Friday after President Trump took to Truth Social to unveil his latest tariff

threats. In a series of posts, Trump demanded that Apple Inc. make its products in the U.S, or face a 25% tariff, then announced plans to slap a 50% levy on all imports from the EU,

beginning June 1. The volatility gauge was up by 13.7% at 23.05 in recent trade, above its long-term average just below 20, according to FactSet data, while stock futures tumbled.