1990.
After five years of rapid growth, the Nikkei index reached a historical peak of 38915 points. On January 12, 1990, the beautiful country that had been preparing for five years finally used its killer weapon.
On that day, a new financial product called "Nikkei Index Put Warrants" suddenly appeared in the New York Stock Exchange. The equity certificates purchased by Goldman Sachs from the foot basin chicken insurance industry were resold to the Kingdom of Denmark, which sold them to the purchasers of warrants, and promised to pay the income to the owners of "Nikkei Index Put Warrants" when the Nikkei Index declined.
This warrant is established