September 7, 2026
Ten-Week Advance Edges Toward Record Highs
Copper extended its longest weekly winning streak in more than three decades, underscoring a run increasingly underpinned by a thin physical market. Benchmark contracts on the London Metal Exchange posted a 10th consecutive weekly gain through last Friday, trading near $14,300 a metric ton and within sight of the all-time high of $14,527.50 set in January. In the US, Comex futures topped $6.70 a pound in August, marking a fresh record there.
The simultaneous strength across LME and Comex underscores a broad repricing that has unfolded over the summer. Price action has accelerated even as visible availability has diminished, a combination that is concentrating attention on the physical layer beneath futures benchmarks.
Inventory Drawdown Highlights Tightness
The most immediate signal of strain is in exchange inventories. LME-registered warehouse stocks fell for 42 straight days through mid-August, the longest uninterrupted decline since 2014. Sustained draws at that cadence typically indicate robust offtake versus deliveries into the system, leaving a thinner buffer to absorb any supply or logistics interruption.
A narrowing cushion of exchange metal can increase the market’s sensitivity to routine disruptions along the supply chain, from mine output variability and smelter maintenance to port scheduling and freight availability. While exchange stocks represent only part of global inventories, their direction and duration of change are closely watched for indications of physical tightness.
Focus Points as Q3 Winds Down
With LME prices hovering just below January’s peak and Comex having printed a new high in August, attention remains on how quickly material replenishes into visible channels. The persistence of exchange draws through mid-August sets a high bar for any near-term easing in physical conditions. Market participants will be monitoring load-in versus load-out trends at warehouses and the pace of material moving from producers to fabricators as the quarter closes.
In an environment where price strength coincides with declining visible stocks, liquidity can become more uneven across time zones and venues, and short-term volatility may be amplified by modest shifts in available tonnage. For metals markets broadly, episodes of tightness are a reminder that futures benchmarks are ultimately anchored to deliverable material and the logistics that bring it to end users.
For precious metals, periods of constrained inventories similarly highlight the distinction between paper exposures and allocated ownership of specific bars held in secure vaults.
