Spot gold vs gold futures price: what are you comparing?

First identify the spot reference and the futures contract

“Spot gold” and “gold futures” do not identify one universal pair of prices. This guide compares the labels behind two named records: the LBMA Gold Price AM or PM, an auction-derived reference for spot, unallocated loco-London gold, and a specific delivery month of COMEX Gold Futures, referred to here as GC.

A final auction benchmark, a futures observation for a particular contract month and a retail gold-bar offer are different records. Check their dates, observation types, units and delivery basis before interpreting a difference. This guide explains those labels; it does not display live gold prices.

The LBMA Gold Price is a named auction reference

ICE Benchmark Administration operates electronic auctions for spot, unallocated loco-London gold. Their final auction prices are published as the LBMA Gold Price AM and PM.^[2] The London location and unallocated basis are part of that reference’s description. It is not a definition of every dealer’s spot quotation or a retail-bar transaction.

The January 2026 methodology gives expected gold-auction starts of 10:30 and 15:00 London time. Those are start times, not guaranteed publication timestamps. The final benchmark comes from the auction’s final round, so the methodology does not assign it a fixed publication time.^[3]

Record the pricing date and whether the value is AM or PM. Keep the scheduled start, the final benchmark and the time a data provider shows it as separate fields. Seeing “10:30” beside a benchmark does not establish that its final value was already available at that instant.

The futures side needs a delivery month and observation type

For the futures side, this guide selects COMEX Gold Futures under Chapter 113. The chapter sets a contract trading unit of 100 troy ounces and quotes prices in dollars and cents per troy ounce.^[1] CME’s 2019 fact card also identifies the GC symbol and these units; that historical card is not a source for current trading hours or margin requirements.^[5]

Write down the delivery month and year. “GC” alone does not specify them. A continuous-chart label also does not identify one fixed delivery month: check which underlying contract the provider is displaying rather than assuming the label is a particular expiry.

Then read the price type. Is the record a last-trade price, a bid or ask, or an official settlement value? Keep its observation date, time and time zone. Different types and timestamps should not be silently substituted for one another.

Chapter 113 also specifies deliverable quality and delivery conditions. The contract quotation is therefore not merely a promise that some universal spot-gold screen will show that same price in the delivery month.

Compare the records before comparing their numbers

Use the fields below to identify the two objects. A missing field is a reason to limit the comparison, not a detail to fill in from a familiar chart.

The LBMA guide describes the gold benchmark in US dollars per fine troy ounce.^[4] Chapter 113 states the futures quotation unit and separately specifies the gold’s deliverable quality. A shared shorthand such as “USD/oz” does not establish identical fine weight, location or delivery terms.

In particular, do not silently turn the 100-troy-ounce GC trading unit into 100 London fine troy ounces. This guide makes no conversion between those bases and no calculation of a cross-instrument price gap. The records have to be understood before any proposed normalization or executable comparison.

A fictional GC quote gives notional, not a required payment

For arithmetic only, invent a GC record for December delivery in model year Y. Its observation date is a fictional date D before that December, its timestamp is model time t in UTC, and its type is a stipulated last-trade quote. The input price is USD 2,030 per contract-quoted troy ounce. These labels describe an invented record, not an actual listing, trade or current price.

Using Chapter 113’s 100-troy-ounce trading unit, the contract-side calculation is:

USD 2,030 per GC-quoted troy ounce × 100 troy ounces per contract = USD 203,000 quoted notional per contract.

The USD 203,000 result is price times contract unit. It is not a margin requirement, an initial cash payment, a profit estimate or a statement that someone owns physical bars. No LBMA benchmark value is supplied in this example, so it does not produce a spot-versus-futures difference.

The model date, time and delivery year are labels for the exercise, not a claim about exchange hours or a listed contract calendar. The arithmetic uses only the stipulated quotation and the named contract’s trading unit.

A price difference is not a forecast or an arbitrage result

A futures price for a named delivery month is not a guarantee of what a future spot quotation will be. Nor does subtracting two screen values by itself establish a tradable profit: their observation times, units, quality, location and contractual terms may differ.

Likewise, closing or offsetting a position is a different statement from saying that its contract is cash-settled. Read the governing contract specification rather than inferring a settlement method from how a participant exits a position. Chapter 113’s delivery provisions cannot be replaced with a blanket rule that all gold futures are cash-settled or that holding a quote automatically gives ownership of gold.

For this comparison, the useful first step is a complete record: reference or contract name, date and session or delivery month, observation type, time zone, and unit and delivery basis. The base-and-quote guide explains why reading the units comes before arithmetic. It does not supply a gold-delivery conversion.

Frequently asked questions

Is the LBMA Gold Price the same as every spot-gold quote?

No. This guide’s spot reference is the named AM or PM auction benchmark for unallocated loco-London gold. Do not substitute a dealer quotation or retail-bar offer without checking what that separate record represents.

Is the final LBMA Gold Price published exactly at 10:30 or 15:00?

Those London times are expected auction starts. The final benchmark follows the final auction round; the January 2026 methodology says it has no set publication time. Keep the pricing date and session separate from the time the final result becomes available.

Does a continuous GC chart identify a particular delivery month?

Not by that label alone. Read the provider’s contract identification, delivery month and year, and observation type. A continuous-chart value should not be silently presented as a quote for a specified December contract.

Does the fictional USD 203,000 notional tell me the margin or payment?

No. It is USD 2,030 per contract-quoted troy ounce multiplied by the 100-troy-ounce trading unit. The calculation contains no margin schedule, initial-payment instruction, profit or physical-ownership determination.

Does a futures quote tell me what spot gold will cost at delivery?

It is not a guaranteed future spot price. You first need to identify the exact futures contract and spot reference, with their different time and delivery bases. A quoted difference alone also does not establish an executable arbitrage or a return.

Sources and scope

This guide compares the labels of a named LBMA Gold Price reference and COMEX Chapter 113 Gold Futures. It reports no live prices. Only the fictional contract-side USD2,030 ×100 =USD203,000 notional is calculated; no cross-instrument gap, fine-weight conversion, margin, payment or arbitrage result is implied. Sources checked on 21 October 2026.

1. COMEX Rulebook Chapter 113: Gold Futures — contract unit, quotation and quality/delivery terms.
2. ICE Benchmark Administration: LBMA Precious Metals — the named auction-derived reference.
3. ICE: LBMA Gold Price and LBMA Silver Price Calculation Methodology — January 2026; gold auction starts and final-benchmark publication.
4. LBMA OTC Guide: Precious Metal Benchmarks — fine-troy-ounce quotation convention; used alongside the January 2026 ICE methodology.
5. CME: Gold Futures and Options fact card — copyright 2019; historical GC-symbol and unit corroboration only, not current hours, margins or listing schedules.