Skip to main content
Panic of 1907

The Copper Speculation That Started the 1907 Panic

Pomegra Learn

How Did a Failed Copper Corner Trigger the Panic of 1907?

The Panic of 1907 is a reminder that major financial crises often begin with small, specific failures rather than system-wide events. The trigger was a failed attempt by F. Augustus Heinze and his brothers to corner United Copper Company stock—to buy enough shares to force short sellers to pay inflated prices to return borrowed shares. The corner failed spectacularly when the expected short squeeze did not materialize. But the Heinze brothers' failure would have remained a private financial disaster if not for the web of financial relationships connecting them to the trust company sector that then transmitted their failure into a systemic banking crisis. Understanding this transmission—from commodity speculation to banking panic—is one of the classic case studies in how financial system interconnections convert isolated failures into systemic crises.

Quick definition: The copper corner of 1907 refers to F. Augustus Heinze's failed attempt to manipulate United Copper Company stock by purchasing enough shares to force short sellers into a short squeeze—the attempt's failure producing the Heinze brothers' financial ruin and, through their connections to New York trust companies, triggering the bank runs that became the Panic of 1907.

Key takeaways​

  • F. Augustus Heinze was a legitimate copper mining operator who attempted to use stock manipulation to generate additional profits.
  • The corner attempt required the Heinze brothers to believe they controlled enough United Copper Company shares to force short sellers to buy from them at inflated prices.
  • The corner failed because the Heinze brothers had miscounted available shares—more shares were available for lending than they had estimated.
  • The failure produced an immediate collapse in United Copper Company stock, financially ruining the Heinze brothers.
  • The transmission mechanism from copper speculation to banking crisis was the web of financial relationships connecting the Heinzes to New York trust companies.
  • The copper corner illustrates the general principle that market manipulation attempts contain specific vulnerabilities and often fail catastrophically for the manipulators.

Who Was F. Augustus Heinze?​

F. Augustus Heinze was a copper mining entrepreneur who had made a genuine fortune in the Butte, Montana copper fields. His mining operations were legitimately successful—Heinze had a real business producing real copper at real profits. He was not primarily a speculator; he was an industrialist who had expanded into financial speculation on the basis of his mining success.

Heinze had moved to New York in 1906 after selling his Montana mining operations to the Amalgamated Copper Company (controlled by Standard Oil interests) for what was reported to be a substantial sum. In New York, he acquired interest in Mercantile National Bank and became associated with Charles Morse, another financier with extensive banking connections. Their combined financial network included multiple banks and trust companies.

His brother Otto Heinze was more directly involved in the copper corner attempt, acting as the primary stock market operator while F. Augustus provided resources and connections. The distinction between the brothers' roles would matter somewhat in the subsequent crisis—F. Augustus's connections to banking were more direct and more damaging to institutional confidence.

The mechanics of the corner attempt​

The short corner strategy was well-established in American financial markets of the period: an operator identifies a stock in which substantial short selling has occurred (shares borrowed and sold in anticipation of price decline), then purchases enough shares to control the supply available for short sellers to borrow to cover their positions. When the short sellers need to return borrowed shares and find no shares available except from the corner operator, they must pay whatever price the corner operator demands.

The strategy's critical vulnerability is the share count: if the corner operator miscounts available shares and more shares are available than anticipated, the short sellers can cover their positions without paying inflated prices, and the corner operator is left holding a large position in stock whose price is now falling because the short squeeze never materialized.

The Heinze brothers' corner attempt on United Copper Company stock in October 1907 encountered exactly this failure mode. The brothers had invested heavily in the stock to build their position, expecting that their ownership of a controlling interest would enable them to demand high prices from short sellers. When they attempted to execute the corner, however, the expected short squeeze did not occur—more shares were available through channels the brothers had not anticipated—and the stock price collapsed rather than rising.

The transmission to banking crisis​

The Heinze brothers' financial ruin would have been their personal problem if their business had consisted solely of stock market speculation. What made their failure systemically dangerous was their connections to the banking sector.

F. Augustus Heinze was associated with Mercantile National Bank. When news of the copper failure spread on October 17-18, depositors at Mercantile National began withdrawing funds. Heinze and his associate Charles Morse had connections to several other banks and trust companies through interlocking directorships and financial relationships. Each institution associated with their names became suspect.

The crisis's spread followed the network of financial relationships rather than any rational assessment of individual institutional solvency. Depositors withdrew from institutions connected to Heinze regardless of whether those institutions had any direct exposure to the copper speculation. The reputation contamination was the transmission mechanism: association with failed speculators was enough to trigger withdrawals even at sound institutions.

F. Augustus Heinze's forced resignation​

The New York Clearing House, recognizing that the panic was spreading through association with the Heinze name, required F. Augustus Heinze and Charles Morse to resign from their banking positions as a condition for the Clearing House's support. This enforced resignation was an attempt to break the association-based transmission: by removing the implicated individuals from their banking positions, the Clearing House hoped to separate the banking institutions from the speculative failure.

The strategy worked partially—the removal of Heinze and Morse did help stabilize some of the institutions directly associated with them. But the crisis had already spread to institutions (notably the Knickerbocker) that had more indirect connections, and the panic's momentum had built beyond what removing a few individuals could stop.

Real-world examples​

The copper corner's failure and its banking transmission parallels multiple modern examples of how specific speculative failures become systemic through interconnection. The LTCM collapse of 1998 began with the firm's specific long-short arbitrage positions failing when Russian sovereign default moved markets in unexpected directions; the crisis spread through LTCM's counterparty connections to major financial institutions. The Bear Stearns fund failures of 2007 began with specific mortgage securities positions failing; the crisis spread through the funds' connections to the broader Bear Stearns entity and through the broader signal about mortgage market health.

The specific triggering event in each case—copper corner, Russian default, mortgage securities—was less important than the transmission mechanism: the web of financial relationships that allowed a specific failure to spread to apparently unrelated institutions.

Common mistakes​

Treating the corner attempt as the cause of the panic. The copper corner was the trigger; the underlying vulnerabilities—trust company fragility, inadequate reserves, absence of a lender of last resort—were the cause. If those vulnerabilities had not existed, the copper failure would have been a private financial disaster with no systemic consequences.

Assuming Heinze was a fraudster. Heinze was an aggressive speculator who overestimated his ability to execute a market corner—a legally questionable but not unambiguously illegal activity in 1907—and made mistakes in assessing the available share supply. His behavior was more aggressive than prudent rather than straightforwardly fraudulent.

Underestimating the reputation-transmission mechanism. The speed with which Heinze's failure spread to institutions with only tangential connections illustrates how reputation contamination can spread faster than fundamental analysis in a panic. Institutions that were actually sound were threatened by association alone.

FAQ​

Market corners occupied a legal gray area in 1907. They were condemned by market authorities and the broader financial community as manipulative, but specific legal prohibitions on stock price manipulation were not firmly established. The manipulation regulations that would clearly prohibit such activities were developed gradually through the subsequent decades, with the Securities Exchange Act of 1934 providing the most comprehensive prohibitions.

How much money did the Heinze brothers lose?​

Precise figures are not fully documented, but the copper corner's failure produced losses that wiped out the gains from their stock position and, given the leverage likely involved, imposed substantial additional losses. The Heinze brothers were financially ruined by the corner's failure.

Were the Heinze brothers prosecuted?​

F. Augustus Heinze faced various legal proceedings related to his banking activities, including charges related to the misuse of bank funds. The specific criminal justice outcomes are complex and involve proceedings spread over several years. Charles Morse faced more serious prosecution and was eventually convicted of misappropriating bank funds.

Did any institution directly hold the losing copper position?​

The direct losses from the copper corner were primarily borne by the Heinze brothers personally and through their investment vehicles. Banks and trust companies associated with them suffered from the deposit runs triggered by association, not from direct exposure to the copper position.

Summary​

F. Augustus Heinze's failed attempt to corner United Copper Company stock in October 1907 was the specific trigger of the Panic of 1907, but it was the transmission mechanism—the web of financial relationships connecting the Heinzes to New York's trust company sector—that converted their private failure into a systemic banking crisis. The corner's failure followed the classic pattern of market manipulation: the operator had miscounted available shares, the expected short squeeze did not materialize, and the position collapsed. But the specific economic significance of the failure was entirely determined by the interconnections that made Heinze's ruin visible to trust company depositors and made those depositors' rational response to the uncertainty produce the irrational-looking cascade of runs that became the Panic of 1907.

Next​

→ Stock Market Collapse and Call Money