Trump Takes Aim at King Dollar and It Threatens U.S. Equities

The greenback stands alone as the world's risk-on currency.

Is Trump Torn Between a Strong and Weak U.S. Dollar?

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The S&P 500 has a friend and a foe in King Dollar.

The greenback is the only major currency whose current strength has coincided with rallies in its domestic equity market, according to Goldman Sachs Group Inc., underscoring the risk for stocks if the dollar's poor start to the year gathers more steam.