Bitcoin's Correlation with USD/JPY Reaches -0.90 Undermining Carry Trade Theory

Bitcoin has shown a notable negative correlation with the USD/JPY exchange rate, recorded at -0.90 over the past 52 weeks, as reported by CoinDesk. Approximately 81% of Bitcoin's weekly price movements can be statistically attributed to fluctuations in the USD/JPY pair.

This emerging trend suggests that Bitcoin and the Japanese yen are moving cooperatively against the U.S. dollar, counter to the traditional carry trade theory. This theory, which posits that a stronger yen should lead to decreased risk appetite in cryptocurrencies, is being tested as both Bitcoin and the yen have recently appreciated together against the dollar.

The current correlation coefficient is the most negative observed since late 2022, indicating a strong inverse relationship. Typically, correlations between Bitcoin and major foreign exchange pairs are weak, oscillating around -0.3 to +0.3; a sustained reading of -0.90 is atypical and calls for further examination.

Implications of the Correlation

The carry trade narrative, which has dominated for over a decade, interprets movements in the yen as affecting risk assets like Bitcoin. Traditionally, a weak yen correlates with rising Bitcoin prices, leading traders to borrow in yen to invest in higher-yielding assets. However, the recent correlation presents a paradox: if the yen gains strength, would Bitcoin decline as per the standard narrative?

Historical context shows that an increase in the yen due to interest rate hikes by the Bank of Japan (BOJ) led to significant drops in Bitcoin's price in late July and early August 2024, illustrating the risks associated with shifts in currency strength. With the yen now approaching four-decade lows, expectations of BOJ intervention to curtail the yen's decline have re-emerged.

Nevertheless, the current correlation may not imply direct causation between the two assets. It is plausible that broader U.S. dollar dynamics, particularly the Federal Reserve's monetary policies, may underlie this correlation. The market has recently adapted to expectations of at least one 25-basis-point interest rate hike from the Fed, causing a stronger dollar, which in turn affects both Bitcoin and the yen.

What to Watch Next

As the situation unfolds, traders should monitor developments concerning the BOJ's responses to the yen's valuation and how these relate to Bitcoin's price fluctuations. While the correlation indicates a potential shift in how currency movements might influence Bitcoin, it is crucial to approach with caution given that correlation does not equal causation. Observing promises of monetary easing or tightening will be essential to understanding future market responses.