QuantConnect / QuantConnect/Lean

Add Support for Market To Limit Order

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feature live-trading
Dominant language
C#
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Avg merge
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Merged PRs (30d)
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Description

Expected Behavior

A Market-to-Limit (MTL) order is submitted as a market order to execute at the current best market price. If the order is only partially filled, the remainder of the order is canceled and re-submitted as a limit order with the limit price equal to the price at which the filled portion of the order executed. (source: https://www.interactivebrokers.com/en/index.php?f=597)

Checklist
  • I have completely filled out this template
  • I have confirmed that this issue exists on the current master branch
  • I have confirmed that this is not a duplicate issue by searching issues
  • I have provided detailed steps to reproduce the issue

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No files, tests, or entry points are named. Start by locating the engine's order submission and order-type handling, then trace partial-fill and cancellation behavior; done means a market-to-limit order follows the described fill, cancellation, and limit re-submission sequence with coverage for partial and full fills.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
fintech-quant
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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