1) Capital Efficient - Larger Potential Profit Buying options, the capital required will be at most the cost of the option contract, as owning an option can only go down to $0. Because option contracts have a time component and strike component (unlike stocks), it means only option contracts will always be cheaper than owning shares. Selling options, the capital required will be based on Margin Requirements set by the regulators and potentially adjusted by the broker. The main difference is that initial capital required to sell options is based on formulas trying to target a probabilistic move against the position and not based on the max value the shares could become. This generally leads to about 1/5 the capital and potentially less if the account qualifies for Portfolio Margin. These lower capital requirements mean that options can have risk that is leveraged to the corresponding stock, meaning less capital is required to taking similar risks of buying stock ...