The Japanese yen's traditional safe-haven status is being questioned as it weakens during market volatility instead of strengthening.
Policy divergence is the core driver: the Bank of Japan has been slow to tighten monetary policy while other major economies aggressively fought inflation.
This has kept Japanese yields structurally low, especially relative to the United States, making the yen a funding currency for carry trades.
Investors borrow yen at low rates, sell it for higher-yielding currencies, and deploy capital elsewhere, creating steady downward pressure on the yen.
The yen has depreciated approximately 50% against the U.S. dollar since 2012, with an acceleration from 2020, driven by rate differentials and capital flows.
The yen's behavior is now more influenced by yield spreads and capital movements than by risk aversion or fear-driven flight to safety.
Until yield differentials narrow or Bank of Japan policy shifts, the yen may not act as a reliable safe-haven asset.
This shift forces investors to reconsider allocation strategies that previously assumed the yen would strengthen during stress periods.