Korea's First Futures Market: The Rise and Fall of the Incheon Midujang

About 170 years after the world's first futures market was established in Osaka, Japan, a similar market appeared on the Korean peninsula. It was the Incheon Midujang (米豆取引所), founded in 1896. Trading rice and beans, as its name suggests, it remains one of the most forgotten scenes in Korea's modern financial history.

Korea's capital markets today are world-class, yet few know that the Midujang stood at their starting point. Why was this market created, what did it trade, and how did it end. Following that arc reveals the roots of Korean finance.

As someone who has long followed both finance and history, I spent time tracing the rise and fall of this market. The record is short, but never light.

Why the Midujang Appeared

In the late 19th century, Korea's grain markets swung sharply with the opening of its ports. Rice and beans were both major exports and daily necessities, and their prices moved with seasons and global events.

Yet the purpose of the Midujang was not to protect Korean farmers. It was financial infrastructure built by Japanese rice merchants who had failed at Osaka's Dojima market — a channel to dismantle the commercial networks of Korean brokers and to move rice smoothly to Japan. In May 1896, fourteen Japanese rice merchants led the opening of the market in Incheon.

To Koreans, it was a tool for managing risk. To Japan, it was a channel of extraction. The same market meant entirely different things to each side.

"A market is never neutral. Who built it and whom it was designed for decides its character."

What It Traded, and How

The Midujang followed much of Dojima's structure.

First, the physical good and the document were separated. Trading was based on warehouse receipts for grain. Rights could be traded without moving the actual goods.

Second, there was a settlement system. The exchange guaranteed payment and settled differences through offsetting trades before maturity. Margin stood at around 10 percent of the trade value.

Third, price information was published. Quotes formed at the Midujang were transmitted nationwide — a rare piece of modern information infrastructure in Korea at the time.

With these three elements in place, the Midujang functioned not as a simple grain market but as Korea's first modern derivatives market.

The Age of Speculation and Ruin

The Midujang did not disappear in the early 20th century. It entered its prime in the 1920s and 1930s. During this period, Midujang trading became a speculative frenzy that shook Korean society.

The most famous figure was Ban Bok-chang. He made 400,000 won through Midujang trades — enough to buy hundreds of large tiled houses in central Seoul — and was called the "Rice Futures King." In the end, he went bankrupt. His fall symbolizes the danger of Midujang speculation at the time.

Yi Kwang-su's novel Regeneration (1924) and Chae Man-sik's Turbid Waters (1937) captured this era in the Korean literature. Both were written by leading Korean novelists of the colonial period, and their scenes of characters ruined by Midujang speculation reflect the social reality of the time.

"Speculation is not a byproduct of markets. It is the inevitable outcome when institutions are immature."

How It Ended

In 1932, under Japan's Joseon Exchange Act, the Midujang was merged into the Gyeongseong Stock and Spot Exchange. It was reorganized into the Incheon branch of the Joseon Exchange and continued until 1939.

The market did not fade naturally. It was absorbed and reorganized within Japan's financial integration policy under Imperial Japanese occupation. The autonomy of Korea's modern finance was fully lost in that process.

What It Means for Us Today

The lessons of the Midujang come down to three points.

First, a derivatives market takes on the character of whoever designs it. The same futures trade becomes risk management for one side, and a tool of extraction for another.

Second, institutions matter more than techniques. Transplanting trading methods without clearing, oversight, and accounting systems turns a market into a casino.

Third, finance is shaped by history. The end of the Midujang was not a simple market failure. It was the product of an era in upheaval.

This is why finance and history belong together. Behind the numbers are people; behind the institutions, an age.

As I wrote, I found myself recalling the words of Morgan Housel, author of The Psychology of Money. He observed that "the hardest financial skill is getting the goalpost to stop moving," and that human greed never ends. The speculators of the 1896 Midujang and the investors who rushed into the 2026 Korean stock market's leverage frenzy moved with the same desire. Markets change, but human mistakes repeat.

A Practical Note

If you are interested in derivatives or futures, look first at the history and the designers of that market. Who built it, for whom was it designed, and what risk was it meant to manage. Understanding that structure changes how today's market moves appear to you.

*This content is for informational purposes only and is not a recommendation to invest in any specific product. All investment decisions and their consequences are the responsibility of the investor.

This content is provided for informational purposes only and does not constitute investment advice. The author is not a licensed investment advisor.