Options are traded in contracts, which are the standard trading units. Typically, one contract represents 100 shares of the underlying stock or 100 times the point value of the underlying index. Corporate actions, such as stock splits or dividends, can adjust the number of shares or the index point value in each contract.

moomoo is a low-cost options trading platform in Australia. On moomoo, users can trade US options with contract fee from $0.50.

Options support single-leg and multi-leg orders.
Single-leg orders: Traders can place single-leg options orders using market, limit, stop, stop-limit, market-if-touched, limit-if-touched, trailing stop, and trailing stop-limit types.
Multi-leg orders: A multi-leg order involves buying or selling two or more options simultaneously, potentially with different strike prices and expiration dates. Each leg is usually filled at the same time, but partial fills may occur based on leg ratios. Multi-leg orders help implement complex strategies and can benefit from market fluctuations. Currently, only limit orders are supported for multi-leg options.

U.S. Equity Options: Trading hours are 9:30–16:00 ET. Pre- and post-market trading is generally not supported, except some ETF and ETN options trade until 16:15 ET.
U.S. Index Options:
Regular trading: 9:30–16:15 ET
Last trading day:
• AM-settled: 9:30–16:15 ET
• PM-settled: 9:30–16:00 ET
Some index options may support pre- and post-market trading.
Explore all the US options you can trade with moomoo >

Options are a trading strategy using options contracts, which give buyers the right but not the obligation to buy or sell an underlying asset at a set price before a certain date. These derivative contracts derive their value from assets such as stocks, ETFs, currencies, indices, or commodities.

Option trading works through contracts that give traders the right to buy (call) or sell (put) an asset at a set strike price before a set expiration date. Traders can buy or sell these contracts and pay or receive a premium. Profits depend on how the asset's price moves. Key factors affecting option prices include the asset's price, time to expiration, and market volatility. Option trading can be used for speculation, hedging, or income generation, but it also involves significant risk.

Benefits of options trading:
Options trading offers flexibility, leverage, and hedging opportunities. With a small premium, traders can control larger positions and potentially earn higher returns. Buyers' losses are limited to the premium paid, while sellers can generate income from premiums. Options can also be used to hedge existing investments against market volatility.
Risks of options trading:
Options involve time decay, meaning their value decreases as expiration approaches. Volatility changes can also affect prices unpredictably. Sellers may face unlimited losses if the market moves sharply against them. The leverage that magnifies profits can also magnify losses, and complex strategies may lead to execution or liquidity risks.

Call and put options are financial contracts that offer strategic investment opportunities.
A call option gives the buyer the right to buy an asset at a specific strike price before a set expiration. Investors buy call options if they expect the asset price to rise, profiting from the difference.
A put option gives the buyer the right to sell an asset at a specific price if they anticipate a price decline, profiting from the drop.
Sellers of both call and put options collect a premium but may face losses if the market moves against them, requiring them to buy or sell at unfavorable prices.
For more information on call and put options >

Yes, moomoo is a legitimate trading platform in Australia. It is regulated in Australia by the Australian Securities and Investments Commission (ASIC). The Australian entity, moomoo Securities Australia Ltd, holds an Australian Financial Services License (AFSL No. 224663) and and the group of companies hold 52 global licences in major financial markets.