---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/42429459.md"
description: "$XL2CSOPHYNIX(07709.HK)1. 9:00-9:15 Order Modification PeriodOnly accepts auction limit orders, price limit: ±15% of yesterday's closing price; orders can be placed, modified, or cancelled freely, and the system displays the Indicative Equilibrium Price (IEP) in real-time.​2. 9:15-9:20 Order Lock-in PeriodNew orders can still be placed, but all existing orders cannot be modified or cancelled; the price range narrows, limited between the current highest bid and lowest ask.​3. 9:20-9:22 Random Matching Period (Core)The exchange system randomly selects a single point in time within these two minutes to perform a one-off, centralized order matching, calculating the unique opening transaction price; trades are executed following price priority and, for equal prices, time priority.​4. 9:22-9:30 Silent Waiting PeriodNo further order processing; unmatched auction orders are automatically converted to regular limit orders and carried over into the continuous auction trading session starting at 9:30.I see many people still don't know the auction rules. Basically, you can consider prices before 9:15 to have little reference value, no need to pay attention."
datetime: "2026-07-06T01:16:15.000Z"
locales:
  - [en](https://longbridge.com/en/topics/42429459.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/42429459.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/42429459.md)
author: "[JasonR](https://longbridge.com/en/profiles/20451053.md)"
---

# $XL2CSOPHYNIX(07709.HK)1. 9:00-9:15 Order Modifica…


### Related Stocks

- [07709.HK](https://longbridge.com/en/quote/07709.HK.md)

## Comments (5)

- **山竹旺旺 · 2026-07-06T01:32:46.000Z**: How much does the order need to be to get executed? Does it have to be exactly the same as the opening price to get executed?
  - **JasonR** (2026-07-09T06:34:32.000Z): No, the opening auction will start matching orders at random based on the price at 20 minutes, depending on the buy and sell orders at that time. Orders that have already entered the auction after 15 
- **W时空 · 2026-07-06T01:32:39.000Z**: That's not right, the 15 points from last Friday weren't given. Today the underlying stock is also in the red, and they only gave 1 point?
- **W时空 · 2026-07-06T01:22:40.000Z**: Became professional
  - **JasonR** (2026-07-09T06:36:28.000Z): For this double Hynix stock, check the discount/premium rate at 9 a.m. every day, then look at the underlying stock price on the Korean side, and you can calculate the normal tracking price. During th