Trading in US Market
- Pattern Day Trading Rules
  - Pattern Day Trading
  - Steps To Take If Marked as PDT
  - Day Trade Buying Power
  - Cash Sweep and Pattern Day Trading
  - Removal of PDT Flag
  - Failed PDT Reset Request
  - PDT Protection
  - Day Trading Counter
  - More Information
  - Day-Trading Multi-Leg Option Orders
- Trading Rules
  - What are the trading hours for US stocks
  - How to place an order for US stocks
  - How to modify or cancel an order
  - What are time in force and pre-market & after-hours trading
  - Whether use the pre and post-market price to calculate the market value and profit or loss of your position
  - Why should the placement of market orders be restricted
  - What is penny stock
  - Can US stocks trade intraday/Can I sell US stocks the same day I bought them
  - Why was my sell order with an order price lower than the best ask price not filled
  - US stock market holidays
  - Why use pre- and post-market prices to calculate market capitalization and profit & loss of stocks during the respective session
  - Withholding Tax on Publicly Traded Partnerships (PTP) Securities and Trading Arrangements
  - Fractional shares trading in the US stock market
  - Information about US Stock Moving to T+1 Settlement
- Order Type
  - What are advanced orders
  - What is limit order
  - The difference between conditional orders and advanced orders
  - What is a market order
  - What is stop order
  - What is stop limit order
  - What is a market if touched order
  - What is limit if touched order
  - What is a trailing stop order
  - What is trailing stop limit order
  - What is an attached order
  - Market-on-Close order
  - What is Algorithmic Trading for US Stocks
- Dividend Reinvestment Plan

Options
- US Stock Option
  - Option basics
  - Trading & margin
  - Option exercise & settlement
  - Why should the placement of market orders be restricted
  - Option Level
  - US Stock Multi-Leg Options Order
  - Margin Requirements for Option Strategies
  - What is an attached order
  - Unique Features of Index Options
  - What's options rolling
- US Index Option
  - What are Index Options
  - Trade Index Options
  - Index Options Margin requirements
  - Index Options Exercise and Settlement

Trading in HK Market
- Trading Rules
  - What are the trading hours for HK stocks
  - How to trade odd lot
  - What is off market order (place orders during non-trading hours)
  - FAQs about odd lots
  - Is the minimum price change of all HK stocks HK$0.01
  - Is there a limit on HK stock price volatility
  - The difference between order cancellation and invalidation
  - What is penny stock trading
- Order Types
  - What is the time-in-force
  - What are advanced orders
  - At-auction market order
  - The difference between conditional orders and advanced orders
  - At-auction limit order
  - What is limit order
  - What is market order
  - What is a stop order
  - What is stop limit order
  - What is a market if touched order
  - What is limit if touched order
  - What is a trailing stop order
  - What is trailing stop limit order
  - What is an attached order
- Warrants/CBBC
  - What is a warrant?
  - What is a callable bull/bear contract (CBBC)?
  - How to trade warrants/CBBC?
  - What are the fees for trading warrants/CBBC?
  - How to calculate the residual value of my CBBC after it is called
  - How does the residual value of my CBBC settle after it expires or is called?
  - What happens to my CBBC if its underlying asset is suspended from trading

Trading in A-shares Market
- Trading Rules
  - What is A-shares
  - What is the time-in-force
  - FAQ about A-shares
  - A-shares trading rules
  - Changes to China Connect Trading for Mainland Investors
- Order Types
  - What are advanced orders
  - The difference between conditional orders and advanced orders
  - Stop limit order
  - Trailing stop limit order

Margin Trading
- Introduction
  - What are margin trading and short selling
  - What is margin trading or short selling for
  - How can I do margin trading or short selling
  - How do I know whether a stock supports margin trading or short selling
  - Where can I find the margins for margin trading and short selling / What is the meaning of each term
  - How many funds or shares can I borrow at most for margin trading or short selling
  - Is there any fee for margin trading and short selling
  - What is dividend payment for borrowed stocks
  - Trade preview (estimated)
- About Margin Calls
  - What is the meaning of each term on my account page
  - How to review the risk status of my account
  - When will I be at risk of forced liquidation
  - Will part of my positions be closed in case of forced liquidation?
  - How to avoid forced liquidation
  - If I receive a margin call while my deposit is in transit, will my position be liquidated
- Disclosures
  - Disclosures

IPOs Subscription
- US IPOs
  - US IPO subscription process
  - Concept of US IPO subscription
  - IPO subscription account (Moomoo Financial Inc. account)
  - IPO P/L
  - Subscription analysis
  - Subscription details explanation
  - FAQ about IPO

Corporate Action
- ADR conversions
  - Instruction of ADR conversions
- Moomoo Financial Inc. account

Paper Trading
- How to create a paper trading account
- Rules of paper trading
- How to place a paper order
- Paper Trading Rules：US Margin Paper Trading Account
- Option Paper Trading Rules
- Futures Paper Trading Rules
- Stock Paper Trading Rules
- Portfolio Introduction

What is penny stock

A penny stock typically refers to a stock that trades for less than $5 per share. This type of stock normally has high price fluctuation, low liquidity, and a higher chance of delisting. Normally we do not suggest public investors trade penny stocks.

1. How to trade penny stocks in the US

Penny stock is a type of stock, and its trading process, trading hours, and order types are the same as those of common stock.

Warm reminder: Because of the high risk, if it is your first time to trade penny stocks, you need to confirm the risk disclosure before you can trade them.

2. If a stock’s price falls below $5, can it be traded

When the price of US stocks falls below $5, they are considered penny stocks. If you open new positions in these US stocks, you need to confirm the risk, but there are no restrictions on closing positions.

3. Do penny stocks support short selling

Generally, short selling of penny stocks is not restricted. Please note that, from the perspective of risk management, Moomoo Financial Inc.may adjust the short-selling limits and short margin rates of some penny stocks from time to time.

4. What are the risks of penny stocks

Since there is no daily price limit on US stocks, prices of penny stocks may fluctuate greatly within a day.

Penny stocks lack a liquid market with low trading volume, and thus have high liquidity risk.

The delisting risk of penny stocks is greater than that of common stocks.

Moomoo is a professional trading app offered by Moomoo Technologies Inc. In the U.S., investment products and services on moomoo are offered by Moomoo Financial Inc., Member FINRA/SIPC.
Any illustrations, scenarios, or specific securities referenced herein are strictly for illustrative purposes. Past investment performance does not guarantee future results. Investing involves risk and the potential to lose principal.

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