Spooky season was short-lived on Wall Street

Debt market fears sparked a selloff Thursday. Brendan McDermid/Reuters New York —

Is the nightmare on Wall Street over, or have traders just covered their eyes?

ICYMI: Last week, relentlessly rosy stock traders — who so far have been unfazed by threats of US troops patrolling American cities or the federal government shutdown or any number of other real-life horrors — finally got a scare from the shadowy realm of finance known as private credit.

The jump scares arrived, appropriately enough, like creepy twins with a warning from beyond the grave.

First came the dual bankruptcies. The blowup of First Brands, an auto parts supplier accused of fraud , and Tricolor, a subprime auto lender, had been haunting investors for weeks.

The concern is less about those businesses failing t