155 Is the Yen's Next Big Test, Englander Says

Summary

Steve Englander discusses the historic US-Japan joint intervention to support the yen, arguing it's only a temporary bridge and that structural capital outflows from Japanese retail investors will limit sustainable yen strength. He links US involvement to fears of higher JGB yields spilling over into US yields and raising US borrowing costs, and notes that without organic changes like BOJ rate hikes, the yen is likely to resume weakening. The conversation highlights 155 as a key test for the rally's staying power and potential hidden stresses in Japan's financial system.

• US joined Japan in a rare yen-supporting intervention partly to prevent JGB yield spillover from lifting US borrowing costs.
• Englander views the intervention as a temporary measure, not a lasting solution for yen weakness.
• Persistent capital outflows from Japanese retail investors undermine efforts to boost the yen.
• Without organic catalysts such as a BOJ rate hike or lower oil prices, USD/JPY may resume its upward trend.
• The intervention’s unusual timing and direct US involvement hint at possible hidden financial stress in Japan.
• Fiscal deterioration and policy constraints add upward pressure on JGB yields over the medium term.
• The 155 level in USD/JPY is seen as a crucial test of whether the yen rally has genuine staying power.