Spot gold climbed 2.5 percent to $4,368.91 per ounce on Sept. 17, briefly touching $4,380 intraday—the same day the Federal Reserve unanimously voted to raise interest rates to 3.75-4.00 percent.
The rally inverted the standard relationship between gold and monetary tightening. Gold's value depends on real Treasury yields—the nominal rate adjusted for inflation expectations—not the Fed's policy rate alone.
Three factors aligned on Sept. 17 to suppress real yields despite the rate hike. Treasury yields spiked immediately after the Fed's announcement, then reversed sharply downward. Crude oil prices fell more than 4 percent, reducing near-term inflation expectations. And gold ETFs recorded eight consecutive sessions of inflows, signaling institutional accumulation ahead of the decision.
Christopher Wong, a strategist at Oversea-Chinese Banking Corp, attributed the gold move to the yield reversal—a correction from the prior day's overreaction. A pullback in nominal Treasury yields, if inflation expectations remain sticky, can push real yields lower even as the Fed tightens policy.
The oil decline amplified this effect. Falling crude prices ease inflation fears and reduce the Fed's implicit case for aggressive rate increases, relieving upward pressure on real yields and improving gold's relative appeal.
Yet headwinds remain. Wong noted that elevated absolute yields and a stronger dollar could constrain further rallies. The Bloomberg Dollar Spot Index was flat on Sept. 17, after gaining 0.5 percent the prior session.
The session exposed the asymmetry that can dominate gold price discovery: real yield direction outweighs headline policy decisions when market pricing diverges from Fed action.
