Knowledge

Knowledge

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

Sessions   Trading methods  Trading hours Trading types
Morning Session Periodical Order Matching – At the opening 09h00 - 09h15 Even lot: LO, ATO
Odd lot: LO
  Continuous Order Matching session I     09h15 - 11h30 Even lot: LO, MTL
Odd lot: LO
  Put through 09h00 – 11h30  
Intermission 11h30 - 13h00  
Afternoon Session Continuous Order Matching session II 13h00 - 14h30 Even lot: LO, MTL
Odd lot: LO
  Periodical Order Matching – At the closing 14h30 – 14h45 Even lot: LO, ATC
Odd lot: LO
  Put through 13h00 – 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 method Trading hours Trading types
Periodical Order Matching – At the opening 09h00 – 09h15 LO, ATO
Periodical Order Matching 1 09h15 – 09h30 LO
Periodical Order Matching 2 09h30 – 09h45 LO
Periodical Order Matching 3 09h45 – 10h00 LO
Periodical Order Matching 4 10h00 – 10h15 LO
Periodical Order Matching 5 10h15 – 10h30 LO
Periodical Order Matching 6 10h30 – 10h45 LO
Periodical Order Matching 7 10h45 – 11h00 LO
Periodical Order Matching 8 11h00 – 11h15 LO
Periodical Order Matching 9 11h15 – 11h30 LO
Intermission 11h30 – 13h00  
Periodical Order Matching 10 13h00 – 13h15 LO
Periodical Order Matching 11 13h15 – 13h30 LO
Periodical Order Matching 12 13h30 – 13h45 LO
Periodical Order Matching 13 13h45 – 14h00 LO
Periodical Order Matching 14 14h00 – 14h15 LO
Periodical Order Matching 15 14h15 – 14h30 LO
Periodical Order Matching – At the closing 14h30 – 14h45 LO, 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.

Contents Details
2.1 Trading Units  
Stocks, closed-end fund certificates, ETF certificates, and covered warrants 100
- 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 level Ticket size
< 10.000 10 dong
10.000 – 49.950 50 dong
≥ 50.000 100 dong

 

ETF certificates, covered warrants apply a base unit of VND 10 for all prices
Tick size for put-through transactions 1 dong


 

Contents Price 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:
    Date Closing price of the underlying security
    05/12 20.500
    06/12 21.000
    09/12 21.800
    10/12 21.400
    11/12 21.200
    5-day average price 21.180