The classic "stocks down, dollar up" correlation is weakening. A J.P. Morgan model shows that relative US equity underperformance (dollar-negative) is currently offsetting the effect of an outright global equity decline (dollar-positive). This dynamic leads to only modest moves in the dollar despite stock market stress.
Analysts expect a continued dollar-centric market where most G10 currencies move in tandem against the dollar, keeping dollar correlations high. However, they are bearish on cross-correlations (e.g., involving Sterling and Euro), anticipating greater divergence between non-dollar currencies, which presents an opportunity for investors.
The dollar's decline, particularly in April, was not driven by investors divesting from US assets. Instead, it was caused by investors with large, unhedged dollar exposures belatedly adding hedges. This involves selling dollars in the spot or forward markets, creating downward pressure without actual asset sales.
Current market chatter about reduced demand for U.S. assets is not a sign of a sudden de-dollarization crisis. Instead, it reflects a slow, rational diversification by global investors who are finding better relative value in other developed markets as their local interest rates rise.
Despite a popular bearish narrative, the U.S. Dollar has a strong bullish case. The U.S. economy is accelerating while Europe and Japan face stagflation, and record short positioning creates fuel for a squeeze. The argument is that U.S. stocks are essentially levered U.S. dollars, and relative strength will attract capital.
While a major sell-off in AI stocks would likely cause an initial "knee-jerk" strengthening of the US dollar due to risk aversion, the subsequent focus would shift to the US's twin deficits, leading to a multi-year dollar weakening trend once volatility subsides.
J.P. Morgan's 2026 outlook is "Bearish Dollar, Bullish Beta," favoring pro-cyclical and high-yield currencies. They expect the dollar's decline to be smaller and narrower than in 2025 unless US economic data significantly weakens, shifting from the more aggressive bearishness of the previous year.
Contrary to the historical norm where volatility rises with a strengthening dollar (risk-off), the market is now experiencing higher volatility as the dollar falls. This unusual 'dollar down, vol up' dynamic suggests a pro-cyclical market backdrop and has major ramifications for how FX options and risk reversals are priced.
The U.S. dollar's decline is forecast to persist into H1 2026, driven by more than just policy shifts. As U.S. interest rate advantages narrow relative to the rest of the world, hedging costs for foreign investors decrease. This provides a greater incentive for investors to hedge their currency exposure, leading to increased dollar selling.
The negative economic impact of tariffs was weaker than forecast because key transmission channels failed to materialize. A lack of foreign retaliation, a depreciating dollar that boosted exports, and a surprisingly strong stock market prevented the anticipated tightening of financial conditions.
According to Keith McCullough, historical backtesting reveals the rate of change of the U.S. dollar index is the most critical macro factor for predicting performance across asset classes. Getting the dollar right provides a significant edge in forecasting moves in commodities, equities, and other global markets.