The COMEX silver market is operating at the edge of physical deliverability. Registered stocks — metal that is available and warrantied for delivery against futures contracts — now cover just 13.4% of open interest. (FACT: FinanceMagnates, JMBullion, May 2026) This ratio has been below the 15% stress threshold for six consecutive months, a duration without modern precedent. In a healthy market, registered stocks cover 25-30% of open interest, providing a comfortable buffer against delivery demands. The current ratio implies that the exchange's deliverable pool is stretched thin.
The numbers behind the ratio tell a dramatic story. COMEX registered inventories peaked at 531 million ounces in October 2025. By mid-May 2026, that figure had fallen to approximately 315 million ounces — a 40% decline in just seven months. (FACT: FinanceMagnates) In January 2026 alone, 33.45 million ounces were withdrawn from COMEX registered inventory in a single week, representing 26% of the deliverable pool at the time. The withdrawal pace has moderated since, but the level has not recovered.
The mechanics of a potential squeeze are well understood. When open interest significantly exceeds registered inventory, the potential for a "delivery squeeze" emerges — holders of short futures positions may be unable to source physical metal to deliver against expiring contracts, forcing them to cover at increasingly higher prices. The current 13.4% ratio means that for every ounce of deliverable silver in COMEX warehouses, there are more than seven ounces of open interest that could theoretically demand delivery. (FACT: JMBullion, May 2026)
The risk is amplified by silver's uniquely inelastic supply structure. With approximately 70% of global output produced as a byproduct of base and precious metal mining, higher prices do not quickly bring new supply to market. (FACT: Silver Institute) Even if spot prices were to spike on a delivery squeeze, mine output would take years to respond materially. Recycling flows would increase, but not fast enough to meet a sudden surge in delivery demand. The combination of a critically low coverage ratio, an inelastic supply base, and six consecutive years of structural deficit creates conditions that are historically associated with violent price dislocations.
The critical question is what triggers the squeeze. It could be a large institutional buyer deciding to take delivery, a tariff-driven arbitrage that pulls metal to another region, or simply the cumulative effect of ongoing withdrawals as physical holders prefer to hold metal off-exchange. Whatever the catalyst, the setup is unambiguous: the COMEX silver market has never been this physically tight, and the margin for error has never been thinner. (FACT: FinanceMagnates, JMBullion, May 2026)
For silver buyers and investors, the COMEX inventory data is the single most important tactical metric to monitor. A coverage ratio at 13.4% implies that any spike in delivery demand — from a large hedger, a tariff event, or a geopolitical shock — could produce a rapid and severe price dislocation. Those holding short futures positions face material delivery risk. Physical buyers should be aware that COMEX premiums could widen sharply in a squeeze scenario, making warehouse-delivered metal significantly more expensive than paper prices suggest. The appropriate response is not to panic, but to ensure that physical silver procurement is secured through reliable channels ahead of potential disruptions. For long-term holders, a COMEX squeeze event would likely be violent but temporary — the structural deficit and inelastic supply are what matter for multi-year positioning, while the coverage ratio is the near-term powder keg.