An intriguing development is currently unfolding within global financial markets. The Japanese yen is climbing across multiple fronts, yet both bitcoin (BTC) and gold are simultaneously posting gains, defying the typical assumption that a strengthening yen functions as a risk-off indicator. The underlying driver appears connected to how the yen influences the Dollar Index (DXY).
According to figures provided by data source TradingView, the dollar-yen (USDJPY) currency pair—one of the most heavily traded worldwide—declined by 1.4% down to 156.40, building upon Wednesday’s 0.9% decrease. Such substantial shifts for a dominant fiat currency like the yen are resulting in widespread dollar depreciation. Consequently, exchange rates including EUR/USD, GBP/USD, and AUD/USD are all registering minor gains for the session.
As a net result, the DXY, which gauges the greenback against a basket of major currencies, slipped 0.4% to sit at 99.22, testing its 200-day moving average utilized by market participants to monitor long-term trajectories.
Should this threshold be breached, additional heavy dollar liquidation could materialize because market operators globally closely watch this average, creating a self-fulfilling price action.
A declining dollar generally acts as a tailwind for assets priced in US dollars, such as bitcoin, while simultaneously loosening worldwide financial conditions to encourage greater risk appetite across both economic sectors and investment markets. Conversely, a robust dollar is typically perceived as a headwind for bitcoin.
Watch out for rapidly strengthening yen
The recent appreciation of the yen is putting downward pressure on the DXY, providing temporary support to bitcoin and gold. Nevertheless, this correlation could invert rapidly if the pace of the yen’s appreciation picks up.
The rationale is straightforward: for more than a decade, speculators have funded bullish positions in equities, fixed income, and digital assets using inexpensive yen, which can unravel abruptly if the currency rallies in a chaotic fashion. International investors who acquired Japanese equities capitalizing on a weak yen might offload their holdings. Simultaneously, domestic Japanese traders who leveraged cheap yen loans to acquire foreign instruments could be forced to liquidate. Both scenarios tend to foster broad risk aversion.
A sharply appreciating yen has previously created headwinds for bitcoin, most notably observed during the unravelling of the yen carry trade in August 2024, at which point bitcoin dropped roughly 20% in a matter of days.
Whether the yen sustains its upward trajectory in a measured or chaotic manner remains entirely uncertain. Even so, the path of least resistance points upward, with traders currently pricing in a heightened probability that the Bank of Japan will elevate interest rates from 1% to 1.25% during its upcoming meeting on September 18.
Furthermore, government officials are actively attempting to push the yen higher. Earlier in August, reports indicated that the United States and Japan intervened directly to counter erratic currency movements and prop up the depreciating currency.
Originally published at https://www.coindesk.com/markets/2026/09/03/the-yen-is-surging-and-it-s-helping-bitcoin-for-now.
