Everything you need to know before you reach the office this morning.

Tensions in the Gulf had already been escalating as the U.S. and Iran increasingly exchange fire, with both sides trying to establish their own shipping lanes in the Strait of…

Drops follow sharp sell-off of US tech stock last week while oil prices jump after Iran and Israel exchange strikes

By Joy Wiltermuth and Isabel Wang

Major US stock markets experienced a significant drop on Wednesday. Chipmaker stocks continued their decline, while new tensions between the US and Iran added to investor worries.…