US and Japan Intervened in Currency Markets – Bitcoin Fell Immediately

A Historic Coordinated Action

Central bank history was made in late July 2026 when US authorities intervened directly in currency markets for the first time since 1998 to support the Japanese yen. According to the Financial Times, Japan confirmed the intervention, with the American side represented by the Federal Reserve Bank of New York acting on behalf of the US Treasury Department.

US Treasury Secretary Scott Bessent stated that "Friday's coordinated currency action countered disorderly movements in the yen" and emphasized that authorities would not hesitate to participate in further joint interventions if necessary.

"We will not hesitate to participate in further joint intervention" — Treasury Secretary Scott Bessent

Crypto analysis firm QCP Capital noted that this was the first coordinated US–Japan currency operation since 2011, and the first explicitly aimed at strengthening the yen since 1998. According to QCP Capital, the total volume of yen purchases was estimated at between $53 billion and $59 billion.

How the Intervention Hits Bitcoin

The link between yen interventions and crypto prices is no coincidence. The explanation lies in the so-called carry trade system: investors borrow cheap yen, convert it to dollars, and deploy the capital into high-yielding assets – including Bitcoin.

When the yen strengthens rapidly as a result of coordinated intervention, these investors are forced to close their positions. That means selling dollar-denominated assets to settle yen loans, which drains liquidity from the market and puts downward pressure on prices.

Bitcoin fell to around $63,034 on July 31, 2026 – a decline of 1.25 percent over 24 hours. This is not the first time the phenomenon has played out, however: in August 2024, a relatively modest rate hike from the Bank of Japan triggered more than $15 billion in crypto selling over six days, with Bitcoin plunging from $64,000 to $49,000. And between January and February 2026, an aggressive yen defense coincided with a Bitcoin decline of more than 35 percent.

Divided Analyst Voices

Market participants are not in agreement about what happens next. One group of analysts warns that sustained yen strength and continued carry trade unwinding could push Bitcoin down toward $50,000.

On the other side, analyst Michaël van de Poppe argues that the intervention, by weakening the dollar, could release liquidity that flows into risk assets such as Bitcoin. CFA Michael Gayed further points out that a deliberate weakening of the dollar on the part of the US could prevent the Bank of Japan from having to sell US Treasuries – which would otherwise destabilize the global bond market.

Market commentator Hupzy sums up the dilemma as follows: prolonged yen weakness could in theory support Bitcoin and stablecoins, but sudden interventions to strengthen the yen trigger short-term liquidations in crypto markets.

Yen Stablecoins: Carry Trade On-Chain

The intervention also brings renewed attention to a lesser-known development in Japan: the rise of yen-denominated stablecoins. Tokyo-based JPYC issued Japan's first yen-pegged stablecoin, and Shinsei Trust and Banking is planning to launch its own version during 2026. Startale Group is additionally developing JPYSC, a stablecoin designed to make carry trade accessible directly on the blockchain.

JPYC's CEO Noritaka Okabe estimates that stablecoin issuers could become major buyers of Japanese government bonds. JPYC is targeting an increase in its bond reserve ratio to 80 percent, with a goal of issuing stablecoins equivalent to 10 trillion yen – around $64 billion – within three years.

For Norwegian investors with exposure to yen-dollar movements, or with positions in crypto markets, the coordinated currency regime between Tokyo and Washington has now become a macroeconomic factor that is difficult to ignore.

Sources: Financial Times, QCP Capital, research from 24markets