- Hedge funds have rebuilt bearish yen positions as Japan’s rate outlook remains less aggressive than some traders expected and the US-Japan yield gap stays wide.
Hedge funds are rebuilding short positions against the Japanese yen, signaling renewed pressure on the currency even after the Bank of Japan raised interest rates last month. The shift was highlighted in a Bloomberg report on hedge fund yen positioning, which cited Commodity Futures Trading Commission data covering the week through Sept. 29.
CFTC data show leveraged funds held 77,429 long yen futures contracts and 91,590 short contracts as of Sept. 29. That left the group with a net short position of 14,161 contracts. The yen futures contracts each represent ¥12.5 million, putting the net short position at roughly ¥177 billion. The data also show leveraged funds reduced long positions by 15,494 contracts while increasing shorts by 6,090 during the week.
The renewed bearish positioning comes after hedge funds had increased bullish yen exposure during the previous two weeks. The reversal suggests traders remain unconvinced that recent Japanese monetary tightening will be enough to produce a sustained yen recovery.
Yen Remains Under Pressure Despite BOJ Rate Hike
The Bank of Japan raised its policy rate to 1.25% at its September meeting, the highest level in 31 years. The central bank has also indicated that additional increases remain possible as it assesses inflation and economic conditions.
However, the yen weakened after the BOJ's September meeting as markets interpreted the policy stance as less aggressive than some investors had anticipated. Reuters reported that the currency moved beyond ¥158 per dollar on Oct. 1 after the release of the BOJ's meeting summary, which showed both support for further rate increases and caution from government representatives.
Several BOJ policymakers argued that rates should move closer to the bank's estimated neutral range relatively soon because underlying inflation was approaching or had reached the 2% target. Other officials warned that weak consumption and subdued services inflation could justify a more cautious approach.
That policy uncertainty matters for the yen because the currency remains heavily influenced by the difference between Japanese and US interest rates. Even after Japan's latest rate increase, the gap remains substantial, giving investors an incentive to hold higher-yielding dollar assets rather than yen-denominated positions.
The backdrop has also affected the traditional yen carry trade, in which investors borrow in a lower-yielding currency such as the yen and invest in higher-yielding assets elsewhere. A recent yen rally disrupted parts of that trade, but the latest positioning data indicate that some leveraged investors are again betting on yen weakness.
Japan Keeps Pressure on Markets to Support the Yen
Japanese officials have become increasingly vocal about the currency's weakness. Japan's top currency diplomat Atsushi Mimura said in late September that markets should take seriously the warnings delivered by Tokyo and Washington regarding the yen. He declined to say whether Japan would intervene again but said he remained concerned about the currency's recent moves.
Japan and the US previously conducted a coordinated intervention on July 31 after the yen approached a roughly 40-year low. Mimura said the intervention was intended to prevent the currency's decline from destabilizing financial markets.
The threat of further intervention creates another risk for investors holding short yen positions. A sudden official purchase of yen could force speculators to close bearish positions, potentially producing a rapid currency move.
Japan's concern is also linked to inflation. A weaker yen increases the local-currency cost of imported goods, including energy. The BOJ has cited inflation risks as one reason for moving away from its previous ultra-loose monetary policy.
At the same time, Japan's government has urged caution over the pace of future rate increases. Reuters reported that a Cabinet Office representative at the BOJ's September meeting called for careful consideration of the cumulative effects of previous rate hikes on the economy.
That tension leaves the yen caught between two competing forces: pressure for higher Japanese rates to contain inflation and concerns that faster tightening could weaken domestic demand.
The currency's direction is also relevant beyond Japan. A sustained yen decline can influence global carry trades, bond markets and capital flows. Recent US Treasury yield increases have already highlighted how shifts in global rate expectations can affect multiple asset classes at the same time.
For now, the CFTC data show that leveraged funds have returned to a net-short yen position. Whether those bets remain profitable will depend largely on the BOJ's next policy moves, the US-Japan interest-rate differential and the willingness of Japanese authorities to respond if the yen weakens further.
The BOJ's next monetary policy meeting is scheduled for Oct. 29-30.