Silver Thursday: The Hunt Brothers' Silver Squeeze

On March 27, 1980, the silver market experienced one of the most violent crashes in commodity history. The trigger was the forced liquidation of massive positions held by the Hunt brothers—Nelson, Bunker, and Lamar Hunt—who had spent two years attempting to corner the global silver market. Their scheme, built on borrowed money and physical silver hoarding, unraveled when leverage became unsustainable. The event, known as Silver Thursday, devastated speculators and forced permanent changes to commodity market regulation.

The Hunt Brothers’ Strategy

Bunker Hunt and his brother Nelson, heirs to an oil fortune, believed that inflation and monetary instability would eventually make precious metals essential. In the late 1970s, they began accumulating physical silver and silver futures contracts. Their goal was audacious: to accumulate enough silver—both physical and contractual—to control a significant portion of the global supply and force prices upward.

The brothers had capital but needed leverage to magnify their positions. They borrowed heavily from banks and brokers, using their accumulated silver and futures positions as collateral. This leverage allowed them to control vastly more silver than their own wealth could purchase outright. By late 1979, the Hunts had accumulated roughly 200 million ounces of physical silver—about one-third of the world’s annual production—plus another 100+ million ounces in futures contracts.

The strategy exploited a structural feature of commodity markets: unlike equities or bonds, which have large capitalization and continuous production, silver is a finite commodity. There is a fixed amount above ground. By controlling a large portion, the Hunts believed they could force prices higher and eventually force short sellers and desperate buyers to pay premium prices to obtain silver.

The Price Spike

For much of 1979 and early 1980, the strategy appeared to be working. Silver prices, which had been around $6 per ounce in mid-1979, began to rise. By January 1980, silver had reached $50.35 per ounce—a more than 800% gain in seven months. The Hunts’ positions were worth enormous sums. Media coverage celebrated their boldness. Smaller speculators piled in, betting that the Hunt brothers knew something and that prices would keep rising.

But the spike had created its own instability. At $50 per ounce, silver from other sources began flowing to market. Secondary supplies were refined and sold. Recycled silver from jewelry, coins, and industrial use accelerated. Substitution effects kicked in—industrial users found alternatives or reduced consumption. The very high price was undermining the scarcity that the Hunts were trying to exploit.

Simultaneously, the Hunts’ borrowed positions were becoming precarious. The leverage worked wonderfully on the way up, magnifying gains. But the higher they pyramided, the more vulnerable they were to any reversal. Rising interest rates in early 1980 also raised the cost of carrying their borrowed positions.

The Breakdown

By March 1980, the dynamic shifted. Banks and brokers, realizing that the Hunts’ position was overextended and at risk of forced liquidation, began tightening margin requirements. The Hunts faced demands for additional collateral or forced sales to meet margin calls. The brothers attempted to negotiate with creditors, but banks and brokers feared being left holding losses if the position continued to unwind. Credit tightened further.

On March 25, 1980—just days before the crash—the Chicago Board of Trade changed its position limits. New rules would cap the number of silver futures contracts a single trader could hold. This meant the Hunts could no longer increase their position; instead, they would eventually be forced to reduce it. The announcement spooked the market. If the Hunts had to sell, prices would fall.

The Crash: Silver Thursday

On March 27, 1980, the bottom fell out. The Hunts, facing margin calls and tightening credit, began liquidating their positions. They sold physical silver and, more importantly, closed out futures contracts. But the market could not absorb such a massive sale smoothly. Prices collapsed. Silver fell from around $34 per ounce at the week’s open to below $20 within days. By summer 1980, silver had fallen below $10 per ounce.

The crash was so severe that several large commodity trading firms failed, including Minpea Inc. and A.G. Benson Ltd., both major silver traders. Hundreds of smaller speculators who had leveraged themselves buying silver were wiped out. The contagion threatened other commodity markets and even some banks.

The Hunts themselves, despite their vast wealth, suffered enormous losses. Estimates put their personal losses at over $1 billion. They were forced to liquidate assets and negotiate with creditors to avoid bankruptcy. The episode became a symbol of the perils of leverage and attempted market cornering.

Regulatory Response

Silver Thursday triggered a major rethinking of commodity market regulation. The Commodity Futures Trading Commission (CFTC) and exchanges moved to prevent future corners and similar leverage-driven crashes:

1. Position limits: Strict caps on how many contracts a single trader can hold, reducing the ability to corner a market
2. Daily mark-to-market: All futures must be repriced daily, and losses deducted immediately, rather than allowing positions to drift
3. Margin requirements: Sharply higher margin requirements, especially for large positions, to reduce leverage
4. Transparency rules: Enhanced disclosure of large positions, allowing regulators to monitor potential corners earlier
5. Circuit breakers: Trading halts or price limits if silver (or other commodities) move too far in a single day, preventing panic selling

These reforms reduced the risk that any single trader or group could corner a major commodity market. Position limits, in particular, became a cornerstone of commodity regulation globally.

Long-Term Lessons

Silver Thursday demonstrated that even extremely wealthy actors cannot reliably corner a major commodity. The global market is too deep, substitution effects are powerful, and the incentives for external suppliers to increase output or for users to economize are too strong. Any attempt to squeeze prices relies on leverage—borrowed money—and leverage is the killer. As soon as the credit market recognizes the danger, margin calls force liquidation, and the cascade begins.

The episode also highlighted the systemic risk posed by commodity markets. A crash in silver threatened the solvency of trading firms and brokers who had extended credit. This threatened banks that had lent to those firms. The contagion could have spread to the broader financial system. Regulatory authorities recognized that commodity markets, while smaller than equity or bond markets, could pose systemic risks if left uncontrolled.

Modern commodity traders, regulators, and risk managers all reference Silver Thursday as a foundational lesson in the dangers of leverage, the illusion of control over commodity supply, and the need for position limits and circuit breakers. The reforms that emerged have prevented a repeat of such an extreme event, though periodic commodity volatility and smaller corners (in agricultural futures, for example) continue to test the regulatory framework.

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