Dollar Wavers as Mideast Tensions Flare; Yen Slides on Pension Fund Report

The U.S. dollar reversed its initial gains on Monday, failing to hold onto a safe-haven bid driven by renewed military conflict in the Gulf, while the Japanese yen resumed its slide toward 40-year lows.

Geopolitical Risks Fail to Sustain Dollar Rally

The dollar initially strengthened after U.S. and Iranian forces exchanged missile and drone assaults over the weekend, with Tehran reportedly closing the vital Strait of Hormuz shipping route. The geopolitical flare-up sent oil prices higher, with Brent crude futures rising 3% to $78.50 a barrel.

However, the greenback's advance proved short-lived. The U.S. Dollar Index (DXY), which measures the currency against a basket of six peers, gave up an early 0.3% gain to trade down 0.2% at 100.83. The euro edged up 0.15% to $1.1433, while sterling was flat at $1.339.

Analysts suggested the dollar's muted reaction reflects a market that has already priced in a more hawkish Federal Reserve. "The dollar was obviously the big winner from the war last time. But it’s starting from a pretty different point this time," said Thomas Mathews, head of markets for Asia Pacific at Capital Economics, in a note cited by Reuters. Mathews added that it was not clear the dollar would gain as much if the situation worsened.

Yen Weakens on Pension Fund Doubts

The Japanese yen slid after a Reuters report, citing two government sources, stated that Tokyo has no immediate plans to change the asset allocations of its state pension funds. The dollar rose 0.2% to 162.05 yen, pushing the Japanese currency back toward multi-decade lows and putting traders on alert for potential government intervention.

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The news walked back a rally from Friday, which was sparked by comments from Finance Minister Satsuki Katayama suggesting the government would encourage the Government Pension Investment Fund (GPIF) and others to increase investments in Japanese assets.

Market participants remain skeptical that intervention alone can reverse the yen's downtrend. Chris Turner, head of global markets at ING, noted that for a sustained reversal, "energy prices need to come lower and the Fed must conclude that it does not need to hike rates after all."

Focus Shifts to U.S. Inflation Data

Investors are now turning their attention to key U.S. economic data later this week, including consumer price index (CPI) figures on Tuesday and producer price index (PPI) data on Wednesday. Federal Reserve Chair Kevin Warsh is also scheduled to testify before Congress.

According to the CME Group’s FedWatch tool, Fed funds futures are currently pricing in a 50% probability of two or more interest rate hikes by the central bank's December meeting, reflecting persistent inflation concerns.