Japanese Yen: Yield cap and intervention shape risks – BBH

Brown Brothers Harriman’s (BBH) Elias Haddad highlights that rising global bond yields and firmer Oil prices have pushed 30-year US Treasury yields back to pre-buyback levels, while USD/JPY has largely retraced its post-intervention slump. Treasury Secretary Scott Bessent’s framing of buybacks and yen intervention as signals effectively caps longer-term yields and USD/JPY, raising the cost of betting against Treasuries or the Japanese Yen (JPY).

Signals cap yields and Dollar Yen

"Global bond yields are rising to fresh highs, reflecting firmer crude oil prices and a higher expected path for major central banks’ policy rates."

"30-Year Treasury yields have erased the drop that followed the August 19 US Department of the Treasury buyback announcement, while USD/JPY has largely retraced its post July 31 joint US-Japan intervention slump."

"Treasury Secretary Scott Bessent defended the unscheduled buyback announcement as a signal, not an attempt to dictate market prices. His aim was to make sure market participants know that things aren’t a one-way trip, and that they’re “looking at fundamentals, and that the market does not dictate policy.”"

"Neither guarantees a reversal but both raise the cost of betting against Treasuries or JPY."

"The same logic likely applies to the yen intervention. In effect, Bessent has placed a cap on longer-term Treasury yields and USD/JPY."

(This article was created with the help of an Artificial Intelligence tool and reviewed by an editor. Know more.)