Fear Gauges for US Credit Risk Show Most Angst Since August (2)

Key measures of perceived US credit risk hit their worst levels since in eight months on Thursday, as investors assessed the impact of the steepest American tariffs in a century on corporate results.

A gauge that measures credit risk for US investment-grade securities, the Markit CDX North American Investment Grade Spread Index, rose as much as 5.85 basis points to 65.54, according to prices compiled by Bloomberg. The index rises as fear climbs. The Markit CDX North American High Yield Index price, which falls as perceived credit risk rises, dropped as much as 0.85 point to 103.83.

Both indexes reached ...