Convertible Bond Grid Trading Record 2026

PortfolioAlert · 2026-03-06T09:03:39+00:00

The article introduces a convertible bond grid trading strategy based on the Guojin PTrade program, primarily achieved through broker server hosting for automated trading. This strategy utilizes market price fluctuations to buy and sell within a set grid, with an initial position of 10 lots and a grid interval of 1 yuan. The article also analyzes existing issues, such as the inability to automatically adjust grid prices, and lists the advantages of automated trading, including modifying positions via JSON scripts and responding to changes in trading volume. Overall, this strategy has been in operation for over three years, achieving basic automation.

PortfolioAlert

2026-03-06 09:03:39

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Convertible Bond Grid Trading, using Guojin’s PTrade program, hosted on the broker’s server, no need to run on personal computers. Buy at bid price, sell at ask price (preferably at prices favorable to oneself). If not executed within a certain period and still outside the grid, cancel the order and place a new one at the corresponding price. For Shenzhen market convertible bonds, after placing an order, unless the price moves to the other side of the grid, the order will not be canceled and re-placed (since placing an order in the Shenzhen market costs a small fee even if not executed, unlike listing, so try to minimize orders; this reduces flexibility but, based on experience, the chance of not executing all day is quite low). The grid adjusts based on actual trades (if the price reaches the order but is not executed, the grid remains unchanged). Usually, an initial purchase of 10 lots (100 shares) is made to build the position, with grid points at 1 yuan. When the price drops, buy up to the maximum position limit at the grid; if it rises and the position is sold out at the grid, the task stops automatically. Development completed in August 2022, with periodic optimizations. Has been running for over 3 years (with a break in between), running automatically daily. Trade records are checked via a computer program.

Existing issues:

When convertible bonds pay dividends, the grid prices are not automatically adjusted. Related code exists but is not ideal, so it has been disabled. Since dividends only affect the price by a few cents, adjustment is optional. Will optimize later if time permits.

Main advantages of automatic trading:

Other software like Tonghuashun can automatically start tasks when buying a specific amount (10, 15, or 20 lots).
Through JSON scripts, it is possible to start or stop trading a specific convertible bond and modify maximum holdings without stopping the service.
If trading volume of a certain convertible bond suddenly surges, it automatically switches to a 1% retracement within the grid for trading.
When the price jumps to two grid levels, the order quantity automatically adjusts by 2 lots to reduce trading fees.
After 3 PM close, it automatically uses unused funds to buy Shanghai reverse repurchase agreements, increasing capital returns.

The current features are fully automated. Just need to occasionally check if unused funds are too high and need to add positions. To add, simply buy the corresponding amount of convertible bonds, and the system will run automatically.

2025 Record https://www.jisilu.cn/question/510498

Now available for download via Baidu Cloud Link: https://pan.baidu.com/s/1iEotTyQrXxqpkAwBxdFdJQ Access code: 7wvf

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