--- title: "Trading Rules" description: "Hong Kong Stock Trading HoursExcept for public holidays and the market closure due to bad weather, the Hong Kong stock market generally trades from Monday to Friday. The trading hours are as follows:1. Pre-opening SessionPeriodsFull Day Trading & Half Day Trading*Trading RulesOrder Input Period9:00am - 9:15amOrders can be entered, amended, or canceled.No-cancellation Period9:15am - 9:20amOnly at-auction limit orders " slug: "4gdrk7d" locale: "en" region: "nz" region_label: "New Zealand" url: "https://longbridge.com/nz/en/support/topics/hkmarket/4gdrk7d.md" updated_at: "2026-04-30T05:48:32.000Z" category: "hkmarket" category_title: "HK market" references: related: - title: "港股市场收费标准" url: "https://longbridge.com/nz/en/support/topics/hkmarket/11l3e82.md" - title: "碎股（不足一手），如何交易" url: "https://longbridge.com/nz/en/support/topics/hkmarket/3k3lj06.md" - title: "港股订单类型" url: "https://longbridge.com/nz/en/support/topics/hkmarket/2yo904n.md" - title: "暗盘交易" url: "https://longbridge.com/nz/en/support/topics/hkmarket/1xzph52.md" - title: "港股下单被拒原因" url: "https://longbridge.com/nz/en/support/topics/hkmarket/322tgyq.md" --- # Trading Rules [Table of Contents](https://longbridge.com/nz/en/support/toc.md) ## Hong Kong Stock Trading Hours Except for public holidays and the market closure due to bad weather, the Hong Kong stock market generally trades from Monday to Friday. The trading hours are as follows: #### 1\. Pre-opening Session Periods Full Day Trading & Half Day Trading\* Trading Rules Order Input Period 9:00am - 9:15am Orders can be entered, amended, or canceled. No-cancellation Period 9:15am - 9:20am Only at-auction limit orders (ALO) and at-auction orders (AO) can be entered, and no orders can be amended or canceled. Random Matching Period 9:20am - up to 9:22am Matching orders during the auction period. (orders can be entered, but cannot be canceled or amended) Blocking Period After matching - 9:30am Oders can no longer be entered, amended, or canceled. \*Eves of Christmas, New Year, and Lunar New Year. #### 2\. Continuous Trading Session Periods Full Day Trading Half Day Trading\* Trading Rules Morning Session 9:30 - 12:00 9:30 - 12:00 Orders can be entered, amended, or canceled. Enhanced limit orders (ELO) are supported. Lunch Break 12:00 - 13:00   Orders entered during the Lunch Break can be canceled or amended; orders that have not been executed during the Morning Session cannot be amended during the Lunch Break, order cancel is available to submit after 12:30. Afternoon Session 13:00 - 16:00   Orders can be entered, amended, or canceled. Enhanced limit orders (ELO) are supported. \*Eves of Christmas, New Year, and Lunar New Year. #### 3\. Closing Auction Session Periods Full Day Trading Half Day Trading\* Trading Rules Reference Price Fixing Period 16:00 - 16:01 12:00-12:01 The Reference Price is calculated and set; no orders can be entered. Order Input Period 16:01 - 16:06 12:01-12:06 At-auction limit orders (ALO) and at-auction orders (AO) within the ±5 percent price limit can be entered, amended, or canceled. No-cancellation Period 16:06-16:08 12:06-12:08 At-auction limit orders (ALO) and at-auction orders (AO) can be entered but cannot be canceled or amended; the prices must be between the lowest ask and highest bid. Random Closing Period 16:08-16:10 12:08-12:10 At-auction limit orders (ALO) and at-auction orders (AO) can still be entered but cannot be canceled or amended; the prices must be between the lowest ask and highest bid. \*Eves of Christmas, New Year, and Lunar New Year. ## **Hong Kong Stock Trading and Settlement Mechanism** #### **1\. Day trading** Day trading is a mode of trading where a client buys or sells a certain stock or stock option position on the same trading day. Day trading is often referred to as T+0 trading. Longbridge accounts can engage in unlimited day trading. #### 2\. Short-Selling Rules Short-selling of Hong Kong stocks is currently not supported #### 3\. Clearing Rules Hong Kong stocks are subject to a T+2 closing system under which the clearing and closing process is not completed until the second business day after the transaction. #### **4\. Minimum Board Lot Size and Price Limits for Hong Kong Stocks** The minimum board lot size for Hong Kong stocks is 1 lot, while stocks with less than one lot are odd lots, and there is no single-day price limit. #### **5\. Minimum Stock Tick Size** - Minimum stock tick size: Stock price (HKD) Tick size (HKD) 0.01 - 0.25 0.001 0.25 - 0.50 0.005 0.50 - 10.00 0.01 10.00 - 20.00 0.01 20.00 - 50.00 0.02 50.00 - 100.00 0.05 100.00 - 200.00 0.1 200.00 - 500.00 0.2 500.00 - 1,000.00 0.5 1,000.00 - 2,000.00 1 2,000.00 - 5,000.00 2 5,000.00 - 9,995.00 5 - Minimum ETF tick size: Stock price (HKD) Tick size (HKD) 0.01 - 1.00 0.001 1.00 - 5.00 0.002 5.00 - 10.00 0.005 10.00 - 20.00 0.01 20.00 - 100.00 0.02 100.00 - 200.00 0.05 200.00 - 500.00 0.1 500.00 - 1,000.00 0.2 1,000.00 - 2,000.00 0.5 2,000.00 - 9,999.00 1 --- > **Disclaimer**: This article is for reference only and does not constitute any investment advice. Content provided by [Longbridge](https://longbridge.com).