Many investors are familiar with the rules for trading U.S. stocks, but not the rules for options. Do you know, for example, what is the minimum number of shares to trade in U.S. stock options? Can you buy and sell only one share? Let’s do a quick overview.
Although U.S. stock trading rules have no limit on the number of shares you can buy or sell, you can trade as little as one share, or 1,000 shares or more. But with options, the rules are different. When trading options, the unit is the contract, the minimum transaction is 1 contract, and 1 contract contains 100 option shares. So exactly, the minimum number of options to trade is 100 shares.
A simple example: If I bought a Bank of America (BAC) put contract due in July with its latest offer of $0.64, the total amount required to buy the contract would be $0.64*100= $64.
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