Reading gold through the dollar

International gold prices are usually quoted in U.S. dollars per troy ounce. Because of that, a change in the dollar's value can show up in the gold price even when nothing else about gold has changed. Reading gold well starts with separating the two.

Why the dollar matters

When the dollar strengthens, the same ounce of gold costs more for someone paying in euros, yen or other currencies. That can soften demand from those buyers and put pressure on the dollar price. When the dollar weakens, the reverse can happen. This is why gold and the dollar often move in opposite directions.

Which dollar?

"The dollar" usually means an index. The widely quoted U.S. Dollar Index measures the dollar against a small basket of major currencies, with the euro carrying the largest weight. Broader trade-weighted indices include many more currencies. A move in one index may not match the other, so it helps to know which measure a commentary is using.

Before asking why gold moved, ask whether gold moved, or whether the measuring stick did.

When the relationship breaks

The opposite-direction tendency is common but not constant. In periods of financial or geopolitical stress, investors can buy both the dollar and gold as perceived safe havens, and the two can rise together. Central-bank purchases and physical demand can also move gold independently of the currency.

Local prices are a different question

Retail gold prices in a local market reflect the international dollar price plus factors such as the exchange rate, dealer premiums and workmanship. In many markets, including Lebanon, local gold prices are commonly quoted with reference to the international dollar price. A local price can therefore change even on a day when the international price does not, and the reverse is also true.

Questions we ask

• Which dollar measure moved, and by how much?
• Did gold move in other currencies too, or only in dollars?
• Was there a stress event that could lift both together?
• For local prices, what changed: the international price, the exchange rate or the premium?

The takeaway: the dollar is often part of the explanation for a gold move, but check the measure, check gold in other currencies, and keep room for periods when the usual relationship does not hold.

Educational content only. This article does not consider your objectives or financial situation and is not a recommendation to buy, sell or hold any asset. Trading involves a risk of loss.