Dollar strength
Updated
What it is
Dollar strength measures the US dollar's value against a basket of other major currencies, commonly tracked via the DXY index, reflecting relative monetary policy, growth, and safe-haven dynamics between the US and its trading partners. A stronger dollar makes US exports costlier abroad and imports cheaper, while easing or tightening global dollar-funding pressures on foreign borrowers.
Why it matters lately
The dollar strengthened following the Fed's September 16, 2026 rate hike, as the move widened the US's interest-rate advantage over peers including the BOJ, even as the BOJ's own tightening cycle (reaching 1.25% by September) partially offset dollar strength against the yen specifically. The dollar had earlier weakened during the acute phase of the Iran war in early 2026 amid broader risk-off dynamics, before recovering as the conflict stabilized and the Fed signaled a more hawkish rate path.
Asymmetric Analytics view
Inference (AA): ELSI treats dollar strength as a composite output of the Fed-vs-BOJ policy divergence and episodic Iran-war risk sentiment, rather than a standalone driver.