New York | America’s risky corporate borrowers have been shut out of the bond market since Donald Trump’s tariff blitz, in a freeze that is reverberating across Wall Street and which threatens a tentative rebound in dealmaking.

Lowly rated companies have failed to sell any debt in the $US1.4 trillion ($2.2 trillion) US high-yield bond market since Trump unleashed market turmoil and raised fears of a US recession with the wave of tariffs he announced earlier this month.