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Regulations

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17.01.2020

1.1. HSX Trading Regulations

Trading hours are from Monday to Friday, excluding the Public holidays.

1.1.  Stocks, closed-end fund certificates, ETF certificates, and covered warrants

SessionsTrading methodsTrading hoursTrading types
Morning SessionPeriodical Order Matching – At the opening09h00 - 09h15

Even lot: LO, ATO

Odd lot: LO

Continuous Order Matching session I    09h15 - 11h30

Even lot: LO, MTL

Odd lot: LO

Put through09h00 – 11h30

Intermission

11h30 - 13h00
Afternoon SessionContinuous Order Matching session II13h00 - 14h30

Even lot: LO, MTL

Odd lot: LO

Periodical Order Matching – At the closing14h30 – 14h45

Even lot: LO, ATC

Odd lot: LO

Put through13h00 – 15h00

Note: During the intermission session, the following actions are not allowed:

  • Taking, amending, or canceling orders.
  • Taking or canceling advertised put-through transactions.
  • Executing put-through transactions or canceling awaiting put-through transactions.
  • 1.2.  Restricted Stocks (PCA)

    Trading methodTrading hoursTrading types
    Periodical Order Matching – At the opening09h00 – 09h15LO, ATO
    Periodical Order Matching 109h15 – 09h30LO
    Periodical Order Matching 209h30 – 09h45LO
    Periodical Order Matching 309h45 – 10h00LO
    Periodical Order Matching 410h00 – 10h15LO
    Periodical Order Matching 510h15 – 10h30LO
    Periodical Order Matching 610h30 – 10h45LO
    Periodical Order Matching 710h45 – 11h00LO
    Periodical Order Matching 811h00 – 11h15LO
    Periodical Order Matching 911h15 – 11h30LO
    Intermission11h30 – 13h00
    Periodical Order Matching 1013h00 – 13h15LO
    Periodical Order Matching 1113h15 – 13h30LO
    Periodical Order Matching 1213h30 – 13h45LO
    Periodical Order Matching 1313h45 – 14h00LO
    Periodical Order Matching 1414h00 – 14h15LO
    Periodical Order Matching 1514h15 – 14h30LO
    Periodical Order Matching – At the closing14h30 – 14h45LO, ATC

    Note: 

    • Restricted stocks can only be traded in lot sizes through the periodic order matching method, including the opening periodic matching session, the subsequent periodic sessions (each lasting 15 minutes), and the closing periodic matching session.
    • During the opening and closing periodic matching sessions, investors are not permitted to amend or cancel orders. In periodic matching sessions 1 through 15, order amendments and cancellations are prohibited during the final 5 minutes of each session.
    ContentsDetails
    2.1. Trading Units
    Stocks, closed-end fund certificates, ETF certificates, and covered warrants100
    - Trading units for even lot transactions 100, maximum volume is 500.000
    - Trading units for odd lot transactions  1, maximum volume is 99
    - Trading units for block trade 1, minimum volume is 20.000
    2.2. Tick size
    Stocks, closed-end fund certificates 
    Price levelTicket size
    < 10.00010 dong
    10.000 – 49.95050 dong
    ≥ 50.000100 dong

    ETF certificates, covered warrantsapply a base unit of VND 10 for all prices
    Tick size for put-through transactions1 dong


    ContentsPrice limits
    Stocks, closed-end fund certificates, ETF certificates, and covered warrants± 7% relative to the reference price
    Stocks on the ex-rights date in cases of share offering to existing shareholders± 7% relative to the reference price
    First trading day of stocks, closed-end fund certificates, and ETF certificates± 20% relative to the reference price
    Stocks, closed-end fund certificates, and ETF certificates resuming trading after a trading halt or suspension lasting twenty-five (25) or more consecutive trading days
    Stocks, closed-end fund certificates, and ETF certificates on the ex-rights date in the following cases: listed company spin-offs, dividend/bonus share distributions to existing shareholders, cash dividends equal or greater than the closing price on the preceding trading day, and resumption of trading following listed company spin-offs not related to the ex-rights date

    Expiration of Covered Warrants

    • If investors hold covered warrants until expiration, they will be automatically settled if they are in-the-money.
    • Last trading day: as announced by the issuer (T)
    • Last registration date / Covered warrant expiration date: T+2 after the last trading day
    • Settlement date: T+7
    • Payment amount per covered warrant = (Covered warrant settlement price – Covered warrant exercise price) / (Conversion ratio)
    • Settlement price (for covered warrants with underlying assets being stocks): the average closing price of the underlying stock over the 5 trading days before the expiration date, excluding the expiration date
    • Payment method: Cash
    • Method: Direct allocation to the securities account

    Example: Calculation of Settlement Price and Payment Amount

    • Covered warrant exercise price: 20.000 VNĐ
    • Last trading day of the covered warrant: 10/12/2019
    • Covered warrant expiration date: 12/12/2019
    • Covered warrant settlement price calculation dates: 05/12, 06/12, 09/12, 10/12, 11/12
    • Closing prices of the underlying security on these dates:

      DateClosing price of the underlying security
      05/1220.500
      06/1221.000
      09/1221.800
      10/1221.400
      11/1221.200
      5-day average price21.180

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