Silver traded at $69.32 per troy ounce on August 24, posting an 80% gain year over year and roughly 20% across August alone, as the U.S. Treasury’s expanded buybacks of longer-dated government debt sharpened questions about Washington’s ability to manage its own balance sheet.

The silver market is pressing toward $70 on a wave of fiscal anxiety and monetary-metal demand, yet the mine supply response remains structurally constrained by the metal’s unusual economics: most silver comes out of the ground as a byproduct of other metals, and the few primary producers cannot scale fast enough to matter.

The price briefly touched $70 intraday on August 21, retreating slightly before settling near $69 early the following week. That intraday print came just three days before the August 24 close, and it sits roughly 82% above the 52-week low of $38.09 recorded on August 27, 2025. A year ago, silver averaged $38 an ounce. The year before that, $28.37. The trajectory is steep, and the supply picture explains why the rally has room to persist even as the headline number looks stretched.

The Treasury Catalyst

The proximate trigger for silver’s August surge, as Crux Investor detailed, was the Treasury’s decision to increase buybacks of longer-dated government debt. The move intensified concerns over U.S. debt management and fiscal sustainability. When the government starts repurchasing its own long bonds more aggressively, markets read it as a signal that policymakers are worried about dysfunction at the long end of the curve. That anxiety flows directly into hard assets.

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Gold and silver have both benefited. As we noted in our coverage of gold and silver adding $5 trillion in market value during August, the buyback program has become a focal point for investors reassessing sovereign credit quality in real time.

Silver’s weekly gain of 5.36% and monthly gain of 19.07% as of August 24 tell the story of a market that found a bid and kept it. Year to date, the metal is actually down 2.79%, a quirk explained by the extraordinary January spike: silver hit an intraday high of $121.58 on January 29, 2026, before pulling back sharply. The current rally represents a recovery from that correction, not a fresh breakout from a quiet base.

Why Mine Supply Cannot Keep Up

The structural issue underneath the price action is simple but widely misunderstood. Silver is not primarily a silver-mining story. Only four mines in the United States operated as primary silver producers in 2025. Another 31 operations, mining lead, zinc, copper, and gold, recovered silver as a byproduct or coproduct. That means the vast majority of domestic silver supply is a side effect of other metals’ economics.

Globally, the picture is similar. Deposits containing multiple metals account for more than two-thirds of U.S. and global silver resources. World mine production rose just 2.8% in 2025 to an estimated 26,000 tons from 25,300 tons the prior year. U.S. output was approximately 1,100 tons, valued at an estimated $1.4 billion. Those are modest numbers for a metal trading near $70.

The byproduct dynamic creates a structural lag. When silver prices rise, primary silver miners benefit immediately. But the bulk of supply comes from copper, zinc, and lead mines whose production decisions hinge on those base metals, not on silver. A copper mine does not ramp output because silver is expensive. It ramps output because copper is expensive. Silver just comes along for the ride.

This mismatch between price signal and supply response is one reason silver tends to overshoot in both directions. The supply side cannot throttle up when prices scream higher, and it does not throttle down cleanly when prices fall, because the host metal’s economics dominate.

The Byproduct Credit Trap

Americas Gold and Silver Corporation’s first-quarter 2026 filing illustrates the mechanism in miniature. At its Galena Complex, cash costs fell 21.5% to $22.12 per ounce from $28.19 a year earlier, driven primarily by higher silver sales and byproduct credits. The operation was producing more and getting paid more for the silver it sold, while credits from other metals helped push reported costs lower.

At the same company’s Cosalá Operations, the opposite happened. Cash costs jumped 44.7% to $24.85 per ounce from $17.17 after zinc and lead production ceased, stripping away those byproduct credits entirely. Same company, same quarter, radically different cost trajectories, all because of what was happening with the non-silver metals.

This is the underappreciated fragility of silver supply economics. A mine’s cost competitiveness can swing by double digits in a single quarter based on zinc or lead prices, copper grades, or smelter terms. For investors evaluating silver miners, the headline cash cost number can be misleading without understanding what byproduct credits are doing underneath it.

The employment picture reinforces the supply constraint. U.S. mine and mill employment at primary silver operations fell 12.5% in 2025, dropping to 1,300 from 1,485 the prior year. Even as prices surged, the workforce shrank. That is not a sector gearing up for expansion.

China’s Refining Chokepoint

The supply question extends well beyond the mine gate. National Review reported that China controls approximately 60 to 70 percent of the world’s refined silver production, a figure that may actually understate Beijing’s dominance. Since only 20 to 30 percent of silver comes directly from silver mines, with the rest requiring processing after extraction as a byproduct, the refining bottleneck matters as much as the mining bottleneck.

China has already implemented export restrictions on silver. Andrew Stuttaford wrote that “if it came to a squeeze, the Chinese supply would not be easily replaced.” That concentration risk adds a geopolitical dimension to the supply story that pure mine-output figures do not capture.

Supply disruptions in adjacent metals markets compound the problem. As our reporting on Chilean storm damage and the copper supply crunch showed, when copper mines go offline, the silver byproduct disappears with them.

The Gold-Silver Ratio and What It Signals

The gold-to-silver ratio stood at roughly 67.5 on August 24, up slightly from 66.7 on August 21 when silver touched $70 intraday. In late January, when silver spiked to $121.58, the ratio had compressed below 45. The current reading sits well above that extreme, suggesting silver has room to outperform gold on a relative basis if the rally extends.

Bank of America and BMO Capital Markets have both referenced above-$100 scenarios for silver, though the specific report details and verbatim price targets were not disclosed in the Crux Investor analysis. The fact that major sell-side desks are modeling triple-digit silver tells you something about how far consensus has shifted from the $28 average of 2024.

Gold itself has been pressing higher on similar catalysts. Our coverage of gold hitting three-month highs on dollar weakness and ETF inflows confirms that the bid for monetary metals is broad-based, not a silver-specific phenomenon.

What the Supply Gap Means for Investors

The practical question for metals investors is whether silver’s supply inelasticity translates into a durable price premium or just sharper volatility. The answer is probably both.

When demand rises and supply cannot respond, prices overshoot. Silver’s January spike to $121.58 and subsequent collapse back toward $38 by late August 2025 demonstrates the pattern. The current rally from that low has been more measured, but the underlying supply constraint has not changed. Four primary U.S. silver mines and a shrinking workforce are not the foundation for a supply-led correction.

For investors in silver miners and royalty companies, the byproduct credit dynamic is critical to monitor. A miner reporting $22 cash costs today could report $35 next quarter if base-metal prices soften or a coproduct stream goes offline, as the Cosalá example showed. The royalty model sidesteps some of this operating volatility, which is one reason royalty stocks tend to hold up better across metals cycles.

The fiscal backdrop adds a layer that pure supply-demand analysis misses. Treasury buybacks of long-dated debt are not a one-off event. They reflect an ongoing challenge in managing a debt stock that requires constant refinancing. Every time Washington signals discomfort with its own yield curve, it reinforces the case for assets that sit outside the credit system.

  • Silver’s 80% year-over-year gain reflects both monetary demand and industrial tightness
  • Only four U.S. primary silver mines operated in 2025, with employment falling 12.5%
  • Global mine production grew just 2.8%, far below the pace of price appreciation
  • China controls 60 to 70 percent of refined silver production, creating a geopolitical chokepoint
  • Byproduct economics mean silver supply responds to copper and zinc incentives, not silver incentives

The tension between rate-hike fears and fiscal sustainability concerns will likely define the next leg. If Treasury continues expanding buybacks, the signal to precious-metals markets is clear: the system’s managers are intervening to keep the bond market functional. That is not a backdrop that punishes gold and silver. It is the backdrop that created the rally in the first place.

Silver at $70 asks a question the supply side cannot answer quickly. And the longer the answer takes, the more the price does the talking.