In the past 15 years, we have seen that the dynamics of the exchange rate in Japan (JPY) has had a significant impact on equities; it has been described as a negative ‘Pavlovian’ relationship where a cheaper currency has usually been associated with higher equities. This chart shows the significant co-movement between Japanese equities – TOPIX – and the USDJPY exchange rate; hence, we are confident that policymakers in Japan are strongly aware of that relationship and therefore the BoJ is carefully and constantly watching the exchange rate.
It is interesting to see while the Japanese Yen has been constantly appreciating against the US Dollar amid the aggressive liquidity injections from the Fed (relative to BoJ), equities have strongly recovered from their March lows and are currently trading at their highest level since October 2018. However, we do not think that this relationship will persist in the medium term; as we previously mentioned, a strong Yen will not only dramatically impact the economic ‘recovery’ but also weigh on LT inflation expectations. The last time the relationship broke down between the two times series was in the beginning of 2018, with the TOPIX rising to nearly 1900 while the Yen was gradually strengthening against the USD, but it did not take long for equities to converge back to their ‘fair’ value.
We are not suggesting that trend in equities is about to revert, but investors should be careful as the ‘Short USD / Long The Rest’ trade has become very crowded.