Bitcoin was trading near $78,500 as the Japanese yen weakened past the closely watched 160-per-dollar level in Tokyo. At the same time, a U.S. strike on Iran’s Larak Island added another layer of uncertainty to global markets. The moves came after Friday’s broad dollar rally and hawkish comments from Warsh at Jackson Hole, which strengthened expectations that the Federal Reserve could raise interest rates.
Bond markets were reportedly pricing in a greater chance of a Fed hike, a shift that had already contributed to institutional outflows from U.S. bitcoin ETFs during May and June. The Japanese yen has also traditionally served as a funding currency for investors borrowing cheaply to invest in U.S. equities and Treasury securities.
U.S. Treasury Secretary Scott Bessent said Sunday that recent fluctuations in the yen remained manageable and did not justify coordinated intervention between Washington and Tokyo, similar to the action taken last month. Reuters also reported that Bessent characterized the currency moves as contained.
Bessent had previously warned on Friday that an unstable yen market could eventually push U.S. interest rates higher. That potential connection makes the yen’s performance another factor for investors watching Treasury yields, Federal Reserve policy expectations and cryptocurrency positioning.
Iran Strike Adds Another Layer to Bitcoin’s Macro Test
The U.S. military action against Iran’s Larak Island introduced another source of risk alongside yen weakness and shifting expectations for U.S. interest rates. Oil prices rose and equities declined following the strike, while bitcoin’s reaction remained relatively limited.
Bitcoin Holds Near $78,000 as Investors Assess Multiple Risks
Bitcoin’s daily decline stayed below 1% even as the yen moved beyond the closely watched 160-per-dollar threshold and tensions in the Gulf increased.
The dollar’s strength helped push the yen lower while simultaneously limiting upside in risk-sensitive assets such as bitcoin. As a result, BTC remained near $78,000 while investors weighed several competing macro pressures.
The broader cryptocurrency market delivered mixed results. Solana and Dogecoin each declined about 3% during the session, while Ether, BNB, Zcash and Tron were little changed. Over the previous week, Solana had gained roughly 8%, while Dogecoin had fallen around 10%.
Monday marked the final trading session of August. Investors were watching the month-end ETF figures to see whether bitcoin’s eight-session streak of ETF inflows would continue despite the recent shift in interest-rate expectations.
Markets were also looking ahead to key U.S. economic releases, including nonfarm payrolls and inflation data. Reuters reported that investors were focused on those figures for clues about the Federal Reserve’s next decision, while the final August bitcoin ETF flow figure could provide a more immediate signal for crypto traders.
For bitcoin and other risk assets, the direction of the U.S. dollar, the yen’s position around intervention-sensitive levels and changing expectations for Federal Reserve policy remain critical factors.

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