1. Hong Kong Stocks Trading Hours

Monday to Friday:

[Pre-opening Session]

At-auction Session:

   HKT 9:00am-9:20am  At-auction orders can be entered and amended

   HKT 9:20am  At-auction orders get processed by HKEX

   HKT 9:30am  Pending at-auction orders are cancelled automatically

   Note: At-auction market orders during this session will be cancelled.

At-auction Limit Session:

   HKT 9:00am-9:15am  At-auction limit orders can be entered and amended

   HKT 9:15am-9:20am  At-auction limit orders entered will be cancelled automatically at 9:30am

   HKT 9:20am   At-auction limit orders get processed by HKEX

   HKT 9:30am  Pending at-auction limit orders continue to be listed on HKEX

   Note: Some at-auction limit orders entered during the pre-opening session, are automatically extended to the continuous trading period. Some at-auction limit orders will be automatically cancelled after amendation, depending on whether the order is accepted by HKEX during the pre-opening session.

[Continuous trading period]

Also called regular trading period: HKT 9:30am – 12:00pm and HKT 1:00pm – 4:00pm

2. Minimum trading unit and stock price rules for HK stocks

The minimum trading unit for HK stocks is “1 lot”, which may equal to 100 shares, 500 shares, 1,000 shares, 2,000 shares, etc., depending on stock price. For example, 1 lot equals to 100 shares for Tencent Holdings Ltd and 500 shares for BYD AUTO. Where share holdings are less than 1 lot, it is called “odd lot”. For instance, in Tencent Holdings Ltd, 1 lot equals to 100 shares, so if one holds 150 shares of Tencent, then 50 shares thereof become odd lot. Odd lot usually occurs when a company carries out bonus issue or rights issue.

Correspondence between stock price and minimum bid size:

Stock price

Minimum Bid Size

Stock price range

Minimum Bid Size

























3. Fluctuation of HK stock price

Like US stock market, HK stock market is not subject to 10% limit up/down system.

4. Intraday trading

Day trading is allowed. HK stocks are subject to the T+0 trading system, that is, stocks can be brought and sold on the same day. There is unlimited T+0 trading frequency both for HK stocks and US stocks.

5. Margin trading

Margin trading of Hong Kong stocks is available.

6. Short Selling

Short selling of Hong Kong stocks is available for most stocks with relatively high liquidity.

7. HK stock settlement arrangement

HK stocks trading is subject to the T+2 delivery system, that is, for shares traded today, the securities company and clearing house will carry out the settlement and delivery of funds and shares on the second workday after clearing. 

8. HK stock derivatives trading

Tiger Account supports warrant, callable bull/bear contract and other derivatives trading.

9. Introduction to corporate action

Actions of listed company refer to events that are published by the issuer of listed securities and will directly or indirectly influence changes of such listed securities, which will influence interests of stockholders of such listed securities.

Common corporate actions include cash dividend, bonus issue, rights issue, privatization, stock split / merger, etc.

1) Cash dividend 

Cash dividends refers to dividends and bonus payments made in the form of cash. Cash paid to shareholders by a company are often provided by current earnings or accumulated profits of the company

2) Bonus issue

Bonus Issue refers to dividend and bonus payment made in the form of security. For the listed companies, it is a method of Capitalization Issue, which means further allocation of securities to existing shareholders as per their respective security holding ratio.

3) Rights issue

Rights Issue, a fundraising way for the listed companies, refers to existing security holders provide offers to subscribe securities as per their respective current security holding ratio. When a company announces rights issue, its existing shareholders will receive the rights. Any shareholder who objects to rights issue may waive the rights by selling the rights on the market.

4) Privatization

Privatization is often proposed by the controlling shareholder in order to buy all shares of minority shareholder in the form of cash or security with cash option. The listed companies may complete privatization through “acquisition” or “scheme of arrangement”. Upon completion of privatization, the listed companies can apply to stock exchanges for cancelation of their respective listing status.

5) Stock split, merger and conversion

Stock split, merger and conversion mean exchanging the existing listed securities for new securities. Among them, stock split refers to splitting the existing eligible securities into “new” shares with lower par value; stock merger refers to merging several existing eligible securities into a “new” share with higher par value.

6) Stock warrant conversion

A stock warrant holder has the right to subscribe a specified quantity of securities at a specified “subscription” price or exercise the stock warrant at a specified “exercise” price and receive the corresponding proceeds during the exercise period or on a specified exercise date. Stock warrant conversion refers to exchanging the stock warrant for a specified quantity of securities at a specified “subscription” price.   

10. Statement of order handling using price capping

In accordance with regulatory obligations that the brokers are expected to have certain controls in place to prevent orders with market disruption risks (such as sudden price fluctuations) from being submitted to the market, the executing brokers may set price caps on buy orders and price floors on sell orders.
Please note that while such price limits are set to maximize order execution while minimizing price risk, there exists a possibility that a trade will be delayed or may not take place.


1. Q: Does Tiger provide support for AGM for the HK market?

    A: Due to the limitation of support from Tiger Brokers' overseas brokers, Tiger Brokers is currently unable to provide proxy support for AGM for the HK market.

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