Japanese Investors Sell UK Gilts at 14-Year High

Japanese investors sold UK government bonds at the fastest pace in 14 years this past November, signaling a significant shift in sentiment driven by UK fiscal worries and rising yields at home.

According to Japan's latest balance-of-payments data, net sales of UK sovereign debt reached ¥351.4 billion ($2.2 billion) in November. This marks the largest monthly sell-off since September 2011. The move reflects eroding demand for gilts as investors recalibrate risk and return expectations.

UK Market Volatility Sparks Profit-Taking

The final quarter of 2025 was a turbulent period for the UK bond market. Gilts staged their best performance in almost two years in October, as traders priced in expectations of interest-rate cuts from the Bank of England.

However, that momentum faded in November. Yields rebounded amid growing concerns that UK authorities were struggling to manage the country's budget deficit. This created an opportune moment for investors to cash in on the prior month's gains.

"Yields fell sharply in October, so naturally you'd sell into that move," explained Hideo Shimomura, a senior portfolio manager at Fivestar Asset Management Co. in Tokyo. He characterized the November sales as "relief selling" in a highly uncertain market environment.

Narrowing Yield Spreads Diminish Gilt Appeal

Simultaneously, the relative attraction of UK debt diminished as its yield advantage over Japanese government bonds (JGBs) shrank.

Between early January 2025 and the end of October, the yield spread between 10-year UK gilts and JGBs tightened by nearly 100 basis points. This was largely driven by rising yields in Japan, where markets began anticipating that the central bank would tighten monetary policy to address persistent inflation.

BOJ Policy Shift Prompts Strategic Risk Reduction

The decisive factor for many Japanese investors was the anticipated policy shift from the Bank of Japan (BOJ). As expectations for a December rate hike intensified, investors were forced to reconsider their foreign bond exposure.

Shoki Omori, chief desk strategist at Mizuho Securities Co., noted that investors had to manage "the prospect of higher domestic interest rates and valuation risks on foreign bonds."

In a research note, he explained why UK bonds were a primary target for risk management. "UK sovereign bonds, which tend to have relatively long duration and high price sensitivity to interest-rate movements, appear to have been a natural focus for risk reduction prior to the policy shift, resulting in concentrated sales."

This preemptive strategy was validated when the BOJ raised its policy rate by 25 basis points in December. Governor Kazuo Ueda also signaled that further rate hikes were likely, reinforcing the case for repatriating capital.