Bitcoin briefly broke below $63,000 on Friday, with the reason sitting 6,000 miles away. America bought Japanese yen for the first time in 28 years.
Washington almost never does this. The goal was to prop up a sinking currency. It also nudged one of the world’s biggest funding trades. Crypto sits at the end of that chain.
What Actually Happened
The yen has been sliding for years. Last week it hit 163.99 per dollar, before extending lower this weekend. That was close to a 40-year low.
Japan moved first, on Thursday. It sold dollars and bought yen. That is called intervention. A government buys its own currency to push the price back up.
Washington joined on Friday. The New York Fed sold euros and bought yen for the Treasury. It used Goldman Sachs and Morgan Stanley, the Financial Times reported.
It worked, for now. The yen closed at 157.40 per dollar, its strongest since early May.
US Last Bought Yen in 1998
America stopped meddling in currency markets in the mid-1990s. Since then it has stepped in only three times. Those were 1998, 2000 and 2011, according to a Congressional Research Service briefing. Friday was the fourth.
Most reports called this the first US help for the yen in over a decade. They pointed to 2011. That runs backwards. In 2011 the Group of Seven (G7) sold yen to stop it rising.
The US last bought yen on June 17, 1998. The New York Fed spent $833 million. Half came from the Fed. Half came from the Exchange Stabilization Fund, a Treasury pot for currency emergencies. The bank’s own record confirms it.
The size is the other shock. A Reuters photo caught Treasury Secretary Scott Bessent’s notepad at Camp David. It read “Buy Japanese Yen (JPY) $5-10 bil.”
That is six to twelve times the 1998 trade.
There is one more wrinkle. Treasury published its currency report on July 23. It kept Japan on a watchlist for currency practices.
Eight days later, Washington was buying yen itself.
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How Much Money Is Involved
Japan spent far more than the US. Bloomberg put Thursday’s Japanese buying at ¥8.45 trillion, or about $52.8 billion. That estimate came from Bank of Japan accounts and broker forecasts.
Here is how it compares.
Nobody knows Thursday’s real number yet. Japan’s finance ministry publishes intervention data once a month. The release covering July 30 is due at the end of August.
South Korea helped too. It sold dollars alongside Japan on Thursday, a Reuters timeline shows. Weeks earlier, Goldman Sachs forecast further weakness toward 165.
What This Means for Bitcoin
The Bitcoin (BTC) price sat near $63,034 at press time. It was down 1.25% over 24 hours, with a market value of $1.26 trillion. Bitcoin did not just fall. It fell alone.
Wall Street had a good Friday. The Nasdaq rose 1%. The S&P 500 added 0.7%. The Dow gained 0.53%, according to CNBC. Bitcoin went the other way.
That gap is the story. Stock traders were watching tech earnings. Crypto traders were watching Tokyo.
The reason is simple. Japanese rates have sat near zero for years. Traders borrowed yen cheaply. They swapped it for dollars and bought riskier assets. Stocks, bonds, and Bitcoin. That is the carry trade.
It works while the yen stays weak. A sharp yen rally breaks it. Traders then sell what they own to repay the loan. Japan’s bond market stress flagged that risk earlier in July.
Markets have been here before. The Bank of Japan raised rates on July 31, 2024. The yen jumped. Within days the Nikkei 225 fell 12.4%, its worst day since 1987. Crypto fell with it.
One thing is different now. That episode started with a rate hike, and hikes close the gap for good. Friday was a purchase. Purchases wear off.
What to Watch Next
The BOJ held rates at 1% this week on an 8-1 vote. That is the highest since 1995. It is still far below the 3.75% US ceiling. Governor Kazuo Ueda hinted at future hikes but promised none.
“Without backing from rate differentials, the impact of FX interventions is likely to be relatively short-lived,” Bloomberg reported in a Friday note, citing Evercore ISI strategists Marco Casiraghi and Gang Lyu.
Three dates matter now:
- Japan confirms its real spending at the end of August.
- Bessent meets Ueda at the Group of 20 (G20) finance meeting in Asheville, North Carolina, that same month.
- After that, the Fed and BOJ rate paths take over.
The simple test is 160. If the dollar stays below 160 yen, the defence held. If it climbs back, Tokyo and Washington face the same call again. The bill will be larger.
Bitrue