The stability of a major global currency is hanging in the balance, and the ripple effects are zeroing in on Bitcoin, at least in the short-term.

This shift revolves around the potential for a coordinated currency intervention by the Federal Reserve, according to a Bloomberg report. After the New York Fed conducted a rate check—a procedural move often preceding market action—the Japanese yen surged 3.39% from last Friday’s low. It now trades at 153.95 yen to the dollar, a level not seen since early November 2025.

This matters because a stronger yen threatens to unwind one of the world’s most pervasive investment strategies, directly impacting the liquidity that has buoyed risk assets like Bitcoin for years.

The move comes after a week of turmoil in Japan, where a sharp selloff pushed the nation’s 40-year government bond yield to 4%, a level last seen at its 2007 debut.

In this fragile macro environment, Bitcoin’s behavior is increasingly dictated by traditional finance flows. It has largely failed to rally amid shifting policies and geopolitics, posting a mere 0.14% gain year-to-date, according to CoinGecko data, while gold and silver climb to new highs.



How a Yen rescue could unwind the global carry trade

For decades, Japan’s near-zero interest rates have fueled the "carry trade," where investors borrow cheap yen to buy higher-yielding assets abroad, including U.S. stocks and Bitcoin.

If the yen weakens, these trades become more profitable on paper. But a sudden, coordinated intervention to strengthen the yen—involving the Fed selling dollars to buy yen—forces a rapid reversal.

This dynamic hits Bitcoin directly, as its short-term price is primarily determined by leveraged capital, Tim Sun, senior researcher at HashKey Group, told Decrypt.

Investors must now sell those risk assets to buy back yen and close their loans, creating a wave of selling pressure.

“Rising expectations of intervention directly lifted the volatility premium, sharply increasing the cost of holding leveraged positions,” Sun said. “This, in turn, forced capital to exit Bitcoin.”



With reports about the NY Fed’s rate checks, investors are worried about a joint intervention that could involve the printing of U.S. dollars to buyback Yen to backstop the Japanese currency decline.

This dynamic explains recent selling across crypto and equities as the yen has strengthened.

“Rising expectations of intervention directly lifted the volatility premium, sharply increasing the cost of holding leveraged positions,” Sun said. “This, in turn, forced capital to exit Bitcoin.”

The ripple effects could be severe.

A forced unwinding of these leveraged positions could further destabilize bond markets and global liquidity, echoing the August 2024 carry-trade blowup that sent Bitcoin below $50,000 and triggered over $1 billion in liquidations.

Sun noted, however, that the current impact is unlikely to exceed that event, as overall risk appetite among leveraged players is now lower than in 2024.

Short-term pain versus long-term tailwinds

While this deleveraging poses a clear short-term threat to Bitcoin’s price, the longer-term monetary consequences could be powerfully bullish, experts told Decrypt.

If the Fed intervenes by selling dollars, it effectively expands dollar liquidity—a form of money printing. This weakens the U.S. dollar, which is already near multi-month lows, and boosts global liquidity.

For a new, sustained rally to take hold, Sun said the market would need to see “a decline in yen FX volatility, followed by USD weakening,” confirming a structural shift toward broader liquidity easing.

Such an environment historically acts as a tailwind for scarce, "hard money" assets like Bitcoin.

For a sustained rally, Sun said the market would need to see “a decline in yen FX volatility, followed by USD weakening,” confirming a structural shift toward broader liquidity easing.

Arthur Hayes, former CEO of BitMEX and a prominent macro commentator, has called this scenario "extremely boolish," in a Saturday tweet.

“This assumes Fed prints dollars, creates banking reserves. dollars are then sold to buy yen. If the Fed is manipulating the yen, we will see its b/s grow via the Foreign currency denominated assets line item, which comes out weekly in the H.4.1 release.”

This view is gaining traction: the immediate pain of a carry-trade unwind may soon give way to a powerful rotation into Bitcoin as investors seek a hedge against a deliberately diluted dollar. Until that pivot, however, Sun expects pressure to persist.

“Until the yen stabilizes and intervention risks are fully priced out, global risk appetite will remain compressed, and Bitcoin prices will continue to face material downside pressure,” he said.

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