COMEX Copper

As of April 28, 2026, COMEX Copper registered inventory stands at 412.8K st — stocks have increased 9.8% over the past 30 days. Track daily updates, delivery flows, and positioning data on The Vault Report.

What this means

COMEX copper registered inventory tracks deliverable copper in Grade-1 warehouses. Copper serves double duty as an industrial bellwether and a financial metal, meaning inventory levels respond to both manufacturing demand shifts and speculative positioning.

Inventory chart

View the 30-day chart with daily data points: COMEX Copper inventory chart →

Live dashboard

The interactive COMEX dashboard shows registered and eligible inventory by warehouse, delivery flows, and Commitment of Traders positioning: Open COMEX dashboard →

Related metals

• Gold registered inventory →
• Silver registered inventory →
• Platinum registered inventory →
• Palladium registered inventory →

Glossary

Registered inventory

Metal in COMEX-approved vaults that has been certified (warranted) for delivery against a futures contract. This is the headline deliverable number.

Eligible inventory

Metal meeting COMEX purity/bar standards stored in approved vaults but not yet warranted. Can be converted to registered with paperwork.

Delivery squeeze

When open interest (futures contracts outstanding) approaches or exceeds registered inventory, holders of longs can force physical delivery — driving sharp price spikes.

Stop/issue

A stop is taking delivery of metal; an issue is making delivery. The daily stop/issue report tracks who is delivering and receiving.