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Data Sources

Exchange figures on MetalCharts, such as COMEX warehouse stocks, LBMA vault holdings and CFTC positioning, are taken from the reports the exchanges and regulators publish. Live spot prices come from commercial market data feeds, and prices in other currencies use the European Central Bank’s reference rates. This page lists every source we use, what we take from it, and how often it updates.

Published · Updated

Why this page exists

Financial data sites routinely re-aggregate and re-package other sites’ data, sometimes with quiet transformations along the way (currency conversion, smoothing, deduplication) that introduce drift over time. The best defence against drift is transparency: tell readers exactly where the numbers come from, how often you pull, and what you do to them.

If you want to dig into how a specific metric is computed, every source on this page that has a dedicated methodology page is linked at the bottom of its entry.

Global

Live Spot Prices

Real-time

The live prices on the price pages, charts and ticker come from commercial market data feeds that track the main global exchanges and over-the-counter markets. A second feed takes over if the first one stops updating.

What we pull
  • Gold, silver, platinum and palladium spot prices
  • Copper and base metal prices (aluminum, nickel, zinc, lead, tin)
  • 24-hour change, high and low
  • Intraday and daily price history

ICE Benchmark Administration

Daily

Operates the electronic auction that sets the LBMA Gold Price (10:30 AM and 3:00 PM London time) and the LBMA Silver Price (noon London time). We pull both fixings directly from ICE's published feed.

What we pull
  • LBMA Gold Price fix
  • LBMA Silver Price fix

License: ICE publishes the benchmark fixings under terms of use. We display the published values with attribution.

Spot Foreign Exchange Rates

Daily

The European Central Bank's reference exchange rates, published once each working day. Used to show metal prices in other currencies and to convert MCX (INR), GFEX (CNY) and the Shanghai Gold Exchange's daily closing prices into US dollars. The UAE dirham and Saudi riyal are pegged to the dollar, so those two use their fixed rates. Live Shanghai Gold Exchange and Shanghai Futures Exchange quotes are converted with a live dollar/yuan rate that arrives with the Shanghai price data.

What we pull
  • USD/CNY
  • USD/INR
  • USD/GBP
  • USD/EUR
  • USD/JPY
  • Other major pairs
  • AED and SAR at their fixed dollar pegs

License: The ECB publishes its reference rates for information purposes.

Bullion Dealer Prices

Hourly

Coin and bar prices on the bullion comparison are collected from the public product pages of online bullion dealers, then set against the live spot price to work out each product's premium. Quotes more than a week old are left out.

What we pull
  • Coin and bar prices by dealer
  • Premium over spot per product
  • Stock status where the dealer shows it

United States

CME Group (COMEX)

Daily

The Commodity Exchange (COMEX), part of CME Group, is the world's primary venue for precious-metals futures. We pull daily warehouse stock reports (registered, eligible, total) per depository, plus settlement prices and open interest.

What we pull
  • Warehouse inventory (gold, silver, copper, platinum, palladium)
  • Futures settlement prices
  • Delivery notices
  • Open interest

License: CME Group data is published for public reporting. We show the daily figures as CME reports them.

Commodity Futures Trading Commission (CFTC)

Weekly

The US futures market regulator publishes the weekly Commitment of Traders (COT) report breaking down futures positioning by trader category. We pull the disaggregated report for all major COMEX metals.

What we pull
  • Weekly COT positioning (managed money, swap dealers, producer/merchant)
  • Open interest by trader category

License: CFTC COT data is a public US-government data product released every Friday for Tuesday positions.

United Kingdom

London Bullion Market Association (LBMA)

Monthly

The principal global trade body for OTC gold and silver. We pull monthly London vault holdings (commercial + Bank of England), the twice-daily LBMA Gold Price auction, and daily London clearing statistics.

What we pull
  • Monthly London vault holdings (gold + silver)
  • LBMA Gold Price (AM + PM fixings)
  • LBMA Silver Price
  • Daily clearing volume and value

License: LBMA vault and clearing data are published as monthly and daily reports. We pull within hours of LBMA publication and surface the position date alongside the publication date.

China

Shanghai Gold Exchange (SGE)

Hourly

The world's largest physical gold spot market by volume. We track Au99.99 (24-karat 1kg benchmark), Au(T+D) (deferred-delivery gold), and Ag(T+D) (deferred-delivery silver) prices, plus weekly gold withdrawal data.

What we pull
  • Gold spot price (Au99.99, Au(T+D))
  • Silver spot price (Ag(T+D))
  • Platinum / palladium physical contracts
  • Weekly gold withdrawals

License: SGE publishes intraday and closing prices to its market data feed. We pull during SGE trading hours and surface a clear last-updated timestamp on every page.

Shanghai Futures Exchange (SHFE)

Daily

China's primary venue for base-metals futures trading. We pull weekly warehouse warrant stocks per metal per warehouse, plus daily futures settlement prices, open interest, and trading volume.

What we pull
  • Warehouse warrant stocks (copper, aluminum, zinc, lead, nickel, tin)
  • Gold and silver inventory
  • Daily settlement prices
  • Open interest

License: SHFE publishes daily settlement and weekly warrant stock reports. We mirror the per-warehouse breakdown rather than collapsing to a single network-wide total.

Guangzhou Futures Exchange (GFEX)

Daily

China's newest commodity futures exchange and the leading global venue for battery-grade lithium carbonate futures, plus industrial silicon and polysilicon contracts. We pull daily settlement prices and open interest.

What we pull
  • Lithium carbonate (battery-grade) futures
  • Industrial silicon futures
  • Polysilicon futures

License: GFEX publishes daily settlement prices to its market data feed. We pull and normalize for the global EV battery materials view.

India

Multi Commodity Exchange of India (MCX)

Real-time

India's largest commodity futures exchange. We pull gold and silver futures settlement prices alongside spot equivalents, surfaced as INR per 10 grams (gold) and INR per kilogram (silver), the local convention.

What we pull
  • MCX gold futures
  • MCX silver futures
  • Local Indian gold and silver pricing

License: MCX publishes intraday and end-of-day data via market data partners. We pull and convert to INR per 10g (gold) / INR per kg (silver) for the Indian market.

Citing MetalCharts data

If you cite a chart or figure from MetalCharts in research, a blog post, or an article, please attribute the underlying source rather than us, e.g. “COMEX warehouse stocks via CME Group” rather than “MetalCharts”. We are an aggregator; the data itself belongs to the exchanges and regulators listed above.

If you do want to credit MetalCharts (much appreciated, helps us keep the lights on), “Chart: MetalCharts.org” with a link to the specific page is the format we prefer.