You may refer to the below table for opening auction orders for HK stocks and futures.
SEHK Opening Auctions - Order types and Time-in-Force
| Time (HKT) | Exchange Order Type | IBKR Order Type | IBKR Time-in-Force |
| 09:00-09:22 | Limit order (at-auction limit) | LMT | OPG/DAY/GTC |
| 09:00-09:22 | Market order (at-auction) | MKT | OPG |
SEHK Opening Sessions Overview
| Time (HKT) | Session | Characteristics |
| 09:00-09:15 | Order Input Period | During this time the exchange only accepts at-auction and at-auction limit orders. Orders can be modified and cancelled during this period. Short Selling orders with a price at or above the Previous Closing Price is allowed. The Stage 1 Price Limit is +/-15% of the reference price of the POS security and orders with price outside Stage 1 price limit will be rejected. |
| 09:15-09:20 | No-cancellation Period | At auction limit orders can be placed with Stage 2 price limit. Orders cannot be modified or cancelled. The Stage 2 Price Limit has an upper limit and lower limit. The Final IEP will be formed within Stage 2 Upper and Lower Limit and orders at a price point that exceeds the Stat 2 upper or lower price limit will not be executed in the POS. |
| 09:20-09:22 | Random Matching Period | No orders can be modified or cancelled. Auction orders will be matched based on order type, price and time priority. At auction orders carry a higher matching priority. Orders will be matched at the final Indicative Equilibrium Price (IEP). At-auction limit orders which are not matched will be converted to limit orders and carried forward into the continuous Trading session. The Final IEP will be formed within Stage 2 Upper and Lower Limit. |
| 09:22-09:30 | Blocking Period | No input, modification or cancellation of orders is accepted |
HKFE Opening Auctions - Order types and Time-in-Force
| Time (HKT) | Exchange Order Type | IBKR Order Type | IBKR Time-in-Force |
| 08:45-09:10:59 / 12:30-12:55:59 | Limit order | LMT | DAY/GTC |
| 08:45-09:12:59 / 12:30-12:57:59 | Market order | MTL | AUC |
HKFE Opening Sessions Overview
| Time (HKT) | Session | Characteristics |
| 08:45-09:10-59 / 12:30-12:55:59 | Pre-Opening | Limit orders and auction orders can be entered, changed and deleted. Based on the prices and quantities of the orders entered, a ‘Calculated Opening Price’ (COP) will be continuously updated and displayed |
| 09:11-09:12:59 / 12:56-12:57:59 | Pre-Open Allocation | Only auction orders can be entered. Orders cannot be amended or cancelled |
| 09:13-09:14:59 / 12:58-12:59:59 | Open Allocation | No input, modification or cancellation of orders is accepted. Orders will be matched according to order type, price and time priority at the Calculated Opening Price (COP) |