cedwyh/jinjing-shared-data
JinJing Shared Data - Unified OHLCV Datasets Version: 2.0.0 | Updated: 2026-04-13 Dataset Overview File Market Rows Period Notes cn_unified.parquet CN (A-shares) 8,502,401 2018-2026 Full coverage, 4987 stocks cn_2010_2017_lite.parquet CN (A-shares) 19,440 2010-2017 LIMITED: only 10 stocks us_unified.parquet US 905,803 2010-2026 US stocks hk_unified.parquet HK 499,076 2010-2026 OHLC/zero-vol filtered delisted_unified.parquet Delisted 1,207,970… See the full description on the dataset page: https://huggingface.co/datasets/cedwyh/jinjing-shared-data.
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JinJing Shared Data - Unified OHLCV Datasets
Version: 2.0.0 | Updated: 2026-04-13
Dataset Overview
Schema (All Files)
date, symbol, open, high, low, close, adj_close, volume, market⚠️ Data Quality Notes
adj_close Risk (US/HK)
- US/HK `adj_close`: For recent data,
adj_close≈close(dividend/adjustment factors may be stale or unavailable) - If you need accurate adjusted close, recalculate using dividend data from a financial API
- CN `adj_close`: Set equal to
close(no adjustment applied)
CN 2010-2017 Lite Data
- Only 10 Shanghai stocks (sh.600000-sh.600015 range)
- Not representative of full market - use for historical research only
- Full A-share coverage starts 2018
HK Data
- OHLC consistency filter applied: removed rows where
high < loworhigh < max(open,close)orlow > min(open,close) - Zero-volume rows removed (were 9.6% of raw data)
Fixes Applied (v2.0.0)
Usage
import pandas as pd
# Load any unified dataset
df = pd.read_parquet("cn_unified.parquet")
df['date'] = pd.to_datetime(df['date'])