The Five Major Uses of Options:

- Risk Transfer: When investors hold the underlying stock and worry about losses from a price drop, they can buy put options for insurance, locking in a minimum future selling price. If the stock price falls, the investor can still sell the stock at the agreed-upon price.

- Big Results with Small Capital: Using a small amount of capital to leverage a long position on the US dollar and a short position on the Japanese yen, achieving the effect of "big results with small capital."

- Harnessing the Wind: During their holding period, investors can leverage the power of options by selling call options to enhance returns on their stock holdings.

- Multi-Dimensional Warfare: Whether the market surges, crashes, or moves sideways, as long as we have our own expectations, there are corresponding option strategies to help us achieve the desired returns.

- Precision Strike: The more precise and insightful your view of the market, the more money you can make through options. — "3-Hour Crash Course on Options"