Stock Function

Options are rights to buy or sell specific commodities at specific prices at specific future times. Options trading features flexibility, cost efficiency, and risk management.

Options can be classified by rights into call and put options, by delivery time into American and European options, and by underlying assets into stock options, index options, etc.

Important option terms include: strike price (exercise price), expiration date (exercise date), open interest, contract unit, settlement type, etc.

Zero-Days-to-Expiration (0DTE) options expire the same day, with high liquidity and active trading. Time decay is rapid, with out-of-the-money options becoming worthless and in-the-money options losing extrinsic value. There’s a risk of early exercise, requiring proper position management.

Common options indicators, including break-even point, premium rate, implied volatility, intrinsic value, time value, Delta, Gamma, Theta, Vega, and Rho, measure option price, volatility, time decay, sensitivity, and risk management.

On both the App and Web platforms, users can search for a stock via the 【Market】 page, go to the chart, select the option, and click buy or sell to trade.

U.S. stock options trade only from 09:30–16:00 ET. Trading hours can be viewed on the Trade page.

Hong Kong stock options trading hours: Trading is only supported from 09:30–12:00 and 13:00–16:00.

U.S. stock options fees can be viewed on the Trade page.

Hong Kong stock options fees can be viewed on the Trade page.