---
license: apache-2.0
---

> **Languages:** [简体中文](README_ZH.md) · [English](README.md)

# dojo_sector_symbol_relations — Stock–Sector Mapping

## Overview

Maps each stock to L1/L2/L3 sector paths with primary and secondary assignments. One row per `(ticker, market)` pair.

## Files

| File | Description |
|------|-------------|
| `data.parquet` | Full stock ↔ sector relations |

## Key Fields

| Field | Description |
|-------|-------------|
| `ticker` | Stock symbol |
| `market` | `us`, `cn`, or `hk` |
| `primary` | JSON object — primary sector path |
| `secondary` | JSON array — secondary paths (may be empty) |
| `symbol` | Internal join key |

### primary / secondary Path Format

```json
{
  "level_1": {"zh": "工业", "en": "Industrials"},
  "level_2": {"zh": "交通运输与物流", "en": "Transportation and Logistics"},
  "level_3": {"zh": "海运与港口", "en": "Maritime and Ports"}
}
```

L3 Chinese/English labels are matched to IDs in [dojo_sector_info](https://huggingface.co/datasets/AlphaDojo/dojo_sector_info).

## Scale (reference)

~**21.5k** rows (more assignments after expanding primary + secondary).

## Assignment Rules

- `primary`: main sector membership.
- `secondary`: cross-sector membership; deduplicated by L3 in downstream precompute.

## Related Datasets

- [dojo_sector_info](https://huggingface.co/datasets/AlphaDojo/dojo_sector_info) — taxonomy definitions
- [dojo_stock_info](https://huggingface.co/datasets/AlphaDojo/dojo_stock_info) — ticker profiles
- [dojo_sector_precomputed](https://huggingface.co/datasets/AlphaDojo/dojo_sector_precomputed) — derived sector indices