Dollar Selloff, Yen Buyback: The Macro Shift That Could Move Bitcoin and Crypto

• USD/JPY intervention could weaken the dollar, boosting global liquidity and asset prices.
• Bitcoin has strong inverse USD correlation and may benefit from long-term dollar weakness.
• Sudden yen strength risks carry trade unwinds, creating short-term crypto volatility.

The Federal Reserve appears ready to intervene in currency markets for the first time in over two decades. According to Bull Theory, the New York Fed has conducted rate checks on USD/JPY rates. This step typically precedes actual currency intervention.

The potential move would involve the U.S. selling dollars and buying Japanese yen. Such coordinated action between central banks is historically rare but impactful.

Historic Patterns Show Market Surges

Japan has struggled with yen weakness for years. Bond yields have climbed to multi-decade highs. The Bank of Japan maintains a hawkish stance despite mounting pressure.

Previous solo interventions by Japan failed. The 2022 attempt didn’t hold. The July 2024 intervention only provided temporary relief.

History reveals a clear pattern. When Japan acts alone, interventions fail. When the U.S. joins Japan, they succeed.

The 1998 Asian Financial Crisis proved this dynamic. Japan’s independent efforts flopped. U.S. participation stabilized the yen immediately.

The 1985 Plaza Accord offers an even starker example. Coordinated intervention pushed the dollar down nearly 50% over two years. Gold surged. Commodities rallied. Non-U.S. markets climbed sharply.

🇺🇸 THE FED IS PREPARING TO SELL U.S. DOLLARS AND BUY JAPANESE YEN FOR THE FIRST TIME THIS CENTURY.

The New York Fed has already done rate checks, which is the exact step taken before real currency intervention. That means the U.S. is preparing to sell dollars and buy yen.

This… pic.twitter.com/7xFReOFoDo

— Bull Theory (@BullTheoryio) January 25, 2026

The Mechanics Behind Dollar Weakness

Bull Theory outlined how Fed intervention would unfold. The central bank creates dollars and sells them. Those dollars purchase yen in foreign exchange markets.

This process weakens the dollar while increasing global liquidity. Asset prices typically surge when the dollar is intentionally weakened.

Bitcoin shows one of the strongest inverse relationships with the dollar. The cryptocurrency also demonstrates strong positive correlation with the yen. Current BTC-yen correlation sits near record highs.

Short-Term Risks vs Long-Term Upside

The carry trade presents immediate concerns. Hundreds of billions of dollars remain tied to this strategy. Investors borrow cheap yen to buy stocks and crypto.

Sudden yen strength forces unwinding. Traders must sell assets to repay loans.

August 2024 demonstrated this risk vividly. A small BOJ rate hike strengthened the yen. Bitcoin crashed from $64,000 to $49,000 in six days. The crypto market lost $600 billion in value.

Yen strength creates short-term volatility. Dollar weakness delivers long-term gains.

Why Crypto Could Benefit Most

Bitcoin remains well below its 2025 peak. Few major assets have failed to reprice for currency debasement.

Coordinated intervention would weaken the dollar significantly. Capital seeks assets that haven’t adjusted to macro shifts. Crypto historically thrives in this environment.

Bull Theory suggests this setup could define 2026 macro trends. The combination of dollar weakness and increased liquidity typically favors risk assets.

Bitcoin’s unique position makes it particularly interesting. The asset hasn’t fully repriced despite monetary expansion elsewhere.

If the Fed proceeds with intervention, markets will watch closely. The last century of data points to significant asset appreciation. Crypto stands positioned to capture gains from any sustained dollar decline.