Quota Control Mechanism

  Northbound Southbound
Aggregate Quota Abolished in August 2016  
Daily Quota RMB 52 bn RMB 42 bn
Calculation
  • Real-time calculation during trading hours
  • Daily quota balance = Daily quota – buy orders + sell trades + adjustments
  • Daily quota will be reset every day. Unused daily quota will not be carried over to next day’s daily quota.
Key Principles
  • Quota is calculated on a “net buy” basis. Based on that principle, quota control only applies to buy orders, i.e. sell orders are always allowed regardless of quota balance
  • Quota is used on a first-come, first-served basis


If the Northbound Daily Quota Balance drops to zero or the Daily Quota is exceeded during the opening call auction session, new buy orders will be rejected. However, as order cancellation is common during opening call auction, the Northbound Daily Quota Balance may resume to a positive level before the end of the opening call auction. When that happens, SEHK will again accept Northbound buy orders.

If the Northbound Daily Quota Balance drops to zero or the Daily Quota is exceeded during a continuous auction session, no further buy orders will be accepted for the remainder of the day. It should be noted that buy orders already accepted will not be affected by the Daily Quota being used up and will remain on the order book of SSE and SZSE respectively unless otherwise cancelled by relevant SEHK Participants.