An unprecedented two-day surge in Taiwan's currency is the latest leg of a scramble out of the U.S. dollar and signal of disquiet in markets as U.S. President Donald Trump's trade war rattles confidence and disrupts trade relationships.

The Taiwan dollar jumped 8% against the U.S. dollar in two days, an unprecedented surge and another sign that investor demand for the U.S. dollar is weakening amid trade turmoil.

The Taiwanese dollar is on the move against the U.S. dollar, appreciating nearly 10% in recent trading sessions. Why is that relevant to U.S. investors, few of whom have probably ever even considered trading the island republic’s currency?