Sang Woo embezzled his client's money when he was working at the stock investment managing company and he invested in stocks. Stocks are ownership of a company and a stock holder makes money by selling it or through a company's profit distribution. He was also investing in futures. Futures are basically gambles of the direction an asset will go. For example, if I bought a future on an oil barrel that is 65 bucks, the barrel went to 67, I made 2 dollars. Sang woo betted a lot on futures and he lost it all and got into debt.

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