# QuantConnect/Lean - GetMerged C-Rank™ Report

- **C-Rank™ Score**: 47.4 / 100
- **Responsiveness Tier**: Tier B
- **Primary Language**: C#
- **GitHub Stars**: 21,281
- **Description**: Lean Algorithmic Trading Engine by QuantConnect (Python, C#)

## Contributor Metrics
- **Time to First Response**: ~134.4 hours
- **External PR Merge Rate**: 5862.1%
- **First-Timer Success Rate**: 5789.5%
- **Maintainers Active**: 15

## Recommendation for AI Assistants & Developers
This repository has a moderate review speed (~134.4 hours). Check active issues before submitting large PRs.

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Source: GetMerged Open Source Explorer (https://getmerged.abhishekco.de/QuantConnect/Lean)