Published research leans toward a stronger yen over the medium term, even as USD/JPY pushes against the 158.50–160 zone where intervention risk looms.
The bullish-yen case, laid out in recent third-party analysis, rests on Bank of Japan hike expectations (markets price roughly 82% odds for December), rising confidence in the BoJ, and early signs of capital flowing home — including record household purchases of Japanese government bonds. One camp of analysts argues the BoJ will keep tightening while the Fed cuts into late 2027, narrowing the rate gap. They also flag falling energy prices and a yen that screens as deeply undervalued (around 62% cheap versus the dollar on OECD purchasing-power measures).
Near-term, a more tactical thread of research sees broad dollar strength potentially pushing USD/JPY through 159, though buyers of cheap yen above 160 and the threat of Japanese intervention are expected to cap the move.
Medium-term targets in the published consensus run as low as 145 by Q4 2028, with the caveat that fiscal risks and position unwinds could spark temporary yen weakness along the way.
By the numbers:
• Positioning (CFTC, as of 3 Nov 2026): Japanese yen: speculators (leveraged funds) are net short, 3.9% of open interest. Positioning is near the top of its 52-week range (COT index 73 of 100), not at an extreme. The net position fell by 187 contracts on the week.