Markets had dismissed tariff risks under the assumption that Trump would follow an earlier pattern and back off, in what became known as the so-called TACO trade. That allowed stocks to reach new record-high territory recently, marking a stunning rebound from the collapse triggered by his “Liberation Day” reciprocal tariffs in April.

With the tariffs set to kick in now on Aug. 1, the latest move by the White House amounts to essentially a four-week extension of its previous 90-day pause, wrote Tobin Marcus, an analyst at Wolfe Research.

Wall Street is mixed in quiet trading as markets appeared to shrug off a new U.S. tariff deadline for trading partners.