June 14, 2019
Coal miners used to carry caged canaries down into the mines on the theory that any presence of dangerous gases would kill the birds before the humans and serve as a warning for workers to exit the tunnels.
Over the years the term has evolved as a metaphor for early signs of trouble in the financial markets.
The Australian dollar (AUD)/Japanese yen(JPY) FX pair is probably the best-known benchmark of risk sentiment, with a well-deserved reputation as a leading directional indicator for markets in general.
On one side is the Aussie dollar, a liquid high-beta currency that is reflective of prevailing global macroeconomic trends, and on the other is the yen, best known as a reliable safe harbor destination in uncertain times. If that pair is rising (AUD outperforming the yen,) it most likely means economies are expanding, markets are happy and the outlook for asset prices favorable. If it’s falling (JPY outperforming,) the opposite. Simply, AUD/JPY is the ultimate canary in the Wall St. coal mine.
International trade and supply chain disruptions have taken a big bite out of global growth. Despite the slowing economy, expectations of even more central bank stimulus have kept financial asset prices elevated. But that fundamental divergence can’t go on forever. The Fed has some room to cut rates but in most other countries yields are already at historic lows while world-wide debt stands at record highs. Investors appear to be slowly coming to the conclusion that more of the same policies aren’t the answer. Either growth needs to accelerate or there has to be a reset lower in the financial markets. The breakdown underway in AUD/JPY is a sign that the canary is keeling over and that the latter outcome may be unfolding.
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