J.P. Morgan says the Fed’s FIMA repo facility could expand Japan’s Yen-buying firepower by supplying temporary Dollars without forcing Tokyo to sell Treasuries.
Japan’s latest defence of the Yen has brought an obscure Federal Reserve facility into the spotlight.
The Foreign and International Monetary Authorities repo facility, FIMA for short, was created as a Dollar-liquidity backstop.
It was not designed to help governments intervene in currency markets.
Yet J.P. Morgan says it is now being discussed as a way to give Japan more short-term ammunition if USD/JPY comes under renewed upward pressure.
“The Fed’s FIMA repo facility is being floated as an option to augment Japan’s own FX intervention capacity,” the bank said. “It can supplement, but not replace, traditional intervention resources.”
USD/JPY was trading around 158.32 on Friday, still far below July’s peak near 164 after the recent joint intervention, but back above the lows around 155.27.
USD/JPY remains sharply lower than its late-July highs, although the pair has recovered back above 158.
The attraction of FIMA is simple.
Japan can pledge US Treasuries to the Fed and borrow Dollars against them, rather than selling those Treasuries outright to raise cash.
“Deploying FIMA would expand Japan’s access to dollars for FX intervention while avoiding liquidating US Treasury holdings,” J.P. Morgan said.
That matters because repeated Japanese selling of Treasuries could put fresh upward pressure on US yields — hardly an attractive side effect for Washington.
Under the existing terms, FIMA can provide up to $60bn per counterparty, with overnight or seven-day borrowing available.
J.P. Morgan notes that the cap is not far from the scale of recent Japanese intervention episodes.
There is, however, a fairly important catch.
“FIMA was not designed for FX intervention,” the bank said, warning of “constraints to its scalability and efficacy if deployed for that purpose”.
The Dollars are borrowed, not handed over permanently. Japan would eventually have to repay them, while the borrowing cost also sits above normal private-market repo rates.
“So while FIMA could augment Japan’s short-term intervention capacity, it remains temporary in nature,” J.P. Morgan said.
Could FIMA Be Upsized?
This is where things become more interesting.
Societe Generale notes that Japan’s Ministry of Finance has already said it plans to use the facility in future, while US Treasury Secretary Scott Bessent has said he would like FIMA to be “upsized”.
“A large increase, e.g. >$200bn, would remove a perceived constraint around intervention,” SocGen said.
That would be a significant change in the market’s perception of Japan’s intervention capacity.
J.P. Morgan is more cautious. It notes that FIMA was authorised by the FOMC in March 2020 and that any increase in counterparty limits would presumably require Committee approval.
The bank also points out that Dollar funding markets are functioning normally.
“Given USD funding markets show no signs of stress at this point… we do not see a reason why the FOMC would feel the need to increase the caps now,” it said.
That raises a broader question: if the Fed did expand FIMA mainly to help facilitate FX intervention, it would look rather different from the emergency-liquidity role the facility was originally built for.
J.P. Morgan says the optics could suggest the Fed is becoming “more comfortable playing a larger role in the support of fiscal policy than it has in the past”.
USD/JPY is still slightly higher in 2026, but the intervention-led reversal has erased most of the summer rally.
So FIMA is not a new currency bazooka. Not yet.
But it does give Japan another way to raise Dollars without dumping Treasuries, and that alone may make future intervention threats more credible.
For Yen traders, the key number may no longer be just 160 in USD/JPY. It may also be $60bn — and whether Washington decides that cap should become much larger.
