The spot price is updated daily and calculated using the Chicago Mercantile Exchange (CME) futures pricing and adding the exchange for physical (EFP) transaction.
- We typically use the futures contract with the highest volume. Please see the following link on the CME for the most actively traded gold futures contracts: https://www.cmegroup.com/markets/metals/precious/gold.html
Spot prices among different dealers may vary, based on whether they are displaying ask and bid pricing, what types of feeds/refresh rates are being used, and other variables.