A post by @FirstSquawk on X.

Japan’s 40-year government bond yield rose to 4.100%, up 4 basis points, according to First Squawk. The move extends pressure at the long end of the Japanese government bond curve, a segment closely watched for shifts in long-term inflation and fiscal-risk pricing. The headline figure points to a modest but notable increase in long-dated yields rather than a broad collapse in rates. Investors will watch whether the rise is sustained in subsequent sessions and whether it spills into other long-tenor JGB maturities.