Trading In US Market
- Trading Rules
  - Trading session
  - What are time-in-force and trading sessions?
  - US Stock MV and P/L Calculation
  - Why should the placement of market orders be restricted
  - Other limits for placing U.S. stocks orders
  - How to edit or cancel an order
  - How to place an order
  - Withholding Tax on Publicly Traded Partnerships (PTP) Securities
  - Fractional shares trading in the US stock market
  - US Stock Trades Settlement Cycle Shorten to T+1
  - What is 24-hour trading
  - OTC
- Order Types
  - What is a Market Order
  - Market-on-Close order
  - What is a Limit Order
  - What are advanced orders
  - Stop order
  - Stop limit order
  - Trailing stop order
  - Trailing stop limit order
  - Market If Touched (MIT)
  - Limit If Touched (LIT)
  - What is an attached order
  - What is a Conditional Order
  - Algo Trading for US Stocks
  - What are order trigger times
  - OCO Order
- Dividend Reinvestment Plan (DRIP)
  - Dividend Reinvestment Plan (DRIP)

US Options Trading
- US Stock Options
  - Option basics
  - Option trading FAQ
  - Exercise & settlement
  - Multi-Leg Options Order
  - US stock options rolling
  - Margin Requirements for Option Strategies
  - US Stock Multi-Leg Options Fees
  - Corporate Actions & Special Situations
  - Why should the placement of market orders be restricted
  - What is an attached order
- US Index Options
  - What are index options
  - Trade Index Options
  - Index Options Margin Requirements
  - Index Options Exercise and Settlement
- How do we value your options positions?
- 390 Professional Orders Rule

Trading In A-Shares Market
- Trading Rules
  - What is China A-shares
  - Common Questions
  - Operation guide to China A-shares account
  - A-share trading rules
  - What is the Time-in-force
  - Changes to China Connect Trading for Mainland Investors
- Order Types
  - What are advanced orders
  - Stop Limit Order
  - Trailing Stop Limit Order
  - What is a Conditional Order
  - Algorithmic Trading for A-shares Market
  - What are order trigger times

Margin Trading
- Introduction
  - What is margin trading and short selling
  - Why use margin trading and short selling
  - How can I do margin trading or short selling
  - Cross-currency trading
  - How do I know whether a stock supports margin trading or short selling
  - Where can I find the margin requirement for margin trading and short selling, and what is the meaning of each term
  - What is the maximum number of funds or shares I can borrow for margin trading or short selling
  - Is there any fee for margin trading and short selling
- About Margin Calls
  - What is the meaning of each term on my account page
  - How do I know the current risks in my account
  - When will I be at risk of forced liquidation
  - How to avoid forced liquidation
  - Will only part of my positions be closed if forced liquidation occurs

Cross-Currency Trading
- How to use cross-currency trading

Regular Savings Plan (RSP)
- RSP For US Stock
  - Regular Savings Plan (RSP) Introduction
  - How to Start a Regular Savings Plan
  - Regular Savings Plan FAQs
  - RSP Calculator
  - Popular RSP Section
- RSP For Funds
  - Regular Savings Plan

Moomoo Wealth
- Funds
  - Moomoo Wealth
  - Buying power
  - Quoted details
  - Trading
  - Fund Dividend
- Moomoo Cash Plus
  - Cash Plus Trading Rules
  - Redemption Amount Adjustment
  - Cash Plus Estimated Yield
- SmartSave
  - SmartSave

IPO Subscription
- How to open a CDS Account-IPO
- Malaysia IPO Shares T&C

Corporate Action
- Instruction of ADR conversions
- Dividend & Estimated Time To Receive Dividends

Paper Trading
- Stock Paper Trading Rules
- How to place a paper order?
- US Margin Paper Trading Account

How do we value your options positions?

The value and profit or loss (P/L) of your options positions are all calculated based on the mark price. The mark price is a reference price used to determine the fair value of an option.

There are two ways to find the mark price of an option:

Go to the option's quotes page.
Check the options chain.

Mark price calculation by options type:

Options Type	Mark Price Calculation
US stock options and index options	Mark Price = (Best Bid + Best Ask) / 2

Helpful？

Options OI Increase Ranking (Weekly)

No. Symbol Weekly OI Increase

GLD 260116 400.00C

GLD260116C400000

GLD 260116 415.00C

GLD260116C415000

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