Is the dollar against emerging markets the best signal of its direction?
Core argument: The Dollar against emerging-market currencies has fallen since the Fed's December 10 rate cut and keeps making new lows, a measure the author calls the most reliable leading indicator of Dollar direction.
The Dollar versus emerging markets (EM) has proven itself to be the most reliable leading indicator of Dollar direction. This measure has been falling ever since the Fed cut rates on December 10, a sign Dollar weakness is about to assert itself again. The black line is the trade-weighted Dollar against other advanced economies (the G10). The blue line is the Dollar versus EM. The Dollar versus the G10 is incredibly noisy and - although it’s fallen in recent days - it hasn’t yet moved below the range it’s bounced around in since the middle of 2025. But the Dollar versus EM keeps making new lows. This is the signal to watch. Dollar debasement has begun.

