📈 SigmaTrader Blog

 When markets turn bearish, one asset often surprises people by strengthening: the U.S. Dollar Index (DXY). At first glance, this looks counterintuitive. After all, when the Fed cuts rates during downturns, the dollar should weaken. So why does DXY frequently rise instead? 1. The Dollar as the World’s Safe Haven Global reserve currency → Most global trade, debt, and commodities are priced in USD. Liquidity demand → In times of stress, investors and institutions scramble for cash. The deepest, most liquid market is the U.S. dollar. Treasuries as collateral → U.S. bonds are considered the safest asset, and buying them requires dollars. 2. Crisis Dynamics Overrule Rate Cuts In “normal” conditions, interest rate differentials drive currencies. Fed cuts rates → interest rate differential falls → USD should weaken. But that logic is more dominant in “normal times” when carry trades and yield differentials drive FX. However, in a crisis, demand for safety and liquidity d...