Bitcoin has exhibited a striking inverse correlation with the dollar-yen pair over the past year.

BTC’s price has been moving in close alignment with shifts in the yen against the U.S. dollar, typically falling as the Japanese currency weakens. This pattern runs against the traditional carry-trade narrative, which holds that a stronger yen should trigger risk-off sentiment in crypto markets.

According to TradingView, the 52-week rolling correlation between bitcoin’s USD price on Coinbase and the USD/JPY exchange rate has dropped to -0.90, its most negative reading since late 2022.

A correlation this deep highlights a strong inverse relationship—bitcoin generally declines when USD/JPY rises (indicating yen weakness) and gains when the yen strengthens. In fact, around 81% of BTC’s weekly price movements align with fluctuations in the currency pair.

This challenges the long-standing carry-trade thesis, which links a weaker yen with stronger performance in bitcoin and other risk assets. For years, traders have borrowed in low-yielding yen to fund positions in higher-return markets.

Following that logic, a strengthening yen should lead to a pullback in risk assets. That scenario unfolded in mid-2024, when the Bank of Japan raised interest rates, driving the yen higher and triggering a broad market selloff. Bitcoin fell from roughly $65,000 to $50,000 in the weeks that followed.

More recently, concerns about a potential unwind of carry trades have resurfaced as the yen weakened to multi-decade lows, raising expectations that the Bank of Japan may intervene.

However, if the current correlation holds, any BOJ-driven rebound in the yen could actually support bitcoin prices, contradicting conventional expectations.

It’s also important to remember that correlation does not imply causation. The relationship does not necessarily mean that bitcoin and the yen are directly influencing each other.

A more likely explanation is that broader movements in the U.S. dollar are impacting both assets independently, creating the appearance of a tight inverse link.

Markets have recently begun pricing in at least one 25 basis-point rate hike by the Federal Reserve this year. This shift toward a more hawkish stance—reversing earlier expectations of rate cuts—has strengthened the dollar against major currencies like the euro, Australian dollar, and New Zealand dollar, as well as against commodities such as gold and silver.

Given this backdrop, traders should be cautious about drawing firm conclusions based solely on the BTC/USD and USD/JPY correlation.