Joinquant

JoinQuant (聚宽量化)

JoinQuant is a leading Chinese online quantitative trading platform offering free data queries, strategy backtesting, and paper trading. It supports A-shares, futures, funds, indices, and more, using an event-driven Python strategy framework.

⚠️ Registration at https://www.joinquant.com is required. Strategies run on JoinQuant's cloud, but you can also retrieve data locally via JQData.

Installation (Local Data SDK)

pip install jqdatasdk

Local Data Authentication

import jqdatasdk as jq

# Log in with your JoinQuant account (free daily data quota)
jq.auth('your_username', 'your_password')

# Check remaining data quota
print(jq.get_query_count())

Strategy Program Structure (Online Backtesting)

JoinQuant strategies use an event-driven architecture, written and run on the platform's web interface:

def initialize(context):
    """Initialization function — called once when the strategy starts"""
    # Set benchmark index (CSI 300)
    set_benchmark('000300.XSHG')
    # Set commission and slippage
    set_order_cost(OrderCost(open_tax=0, close_tax=0.001,
                              open_commission=0.0003, close_commission=0.0003,
                              min_commission=5), type='stock')
    set_slippage(FixedSlippage(0.02))
    # Set stock pool
    g.security = '000001.XSHE'

def handle_data(context, data):
    """Intraday event — triggered once per trading frequency"""
    security = g.security
    # Get the last 20 days of closing prices
    close_data = attribute_history(security, 20, '1d', ['close'])
    ma5 = close_data['close'][-5:].mean()
    ma20 = close_data['close'].mean()

    # Golden cross — buy
    if ma5 > ma20:
        order_target_value(security, context.portfolio.total_value * 0.9)
    # Death cross — sell
    elif ma5 < ma20:
        order_target(security, 0)

Stock Code Format

Data Query Functions (JQData)

Market Data

import jqdatasdk as jq

# Get daily candlestick data
df = jq.get_price(
    '000001.XSHE',              # Stock code
    start_date='2024-01-01',    # Start date
    end_date='2024-06-30',      # End date
    frequency='daily',          # Frequency: daily, minute, 1m, 5m, 15m, 30m, 60m, 120m
    fields=['open', 'close', 'high', 'low', 'volume', 'money'],
    skip_paused=True,           # Skip suspended trading days
    fq='pre',                   # Adjustment: None (unadjusted), 'pre' (forward-adjusted), 'post' (backward-adjusted)
    panel=False                 # False returns DataFrame
)

# Get data for multiple stocks
df = jq.get_price(['000001.XSHE', '600000.XSHG'],
                   start_date='2024-01-01', end_date='2024-06-30',
                   frequency='daily', fields=['close'], panel=False)

# Get minute-level data
df = jq.get_price('000001.XSHE', start_date='2024-06-01 09:30:00',
                   end_date='2024-06-01 15:00:00', frequency='1m')

Get Last N Data Points

# Get closing prices for the last 20 trading days
df = jq.get_bars('000001.XSHE', count=20, unit='1d', fields=['close', 'volume'])

Financial Data

# Query financial indicators
df = jq.get_fundamentals(
    jq.query(
        jq.valuation.code,
        jq.valuation.market_cap,          # Total market cap (100M CNY)
        jq.valuation.pe_ratio,            # Price-to-earnings ratio
        jq.valuation.pb_ratio,            # Price-to-book ratio
        jq.valuation.turnover_ratio,      # Turnover rate
        jq.indicator.roe,                 # Return on equity (ROE)
        jq.indicator.eps,                 # Earnings per share
        jq.indicator.revenue,             # Revenue
        jq.indicator.net_profit,          # Net profit
    ).filter(
        jq.valuation.pe_ratio > 0,        # Filter out loss-making stocks
        jq.valuation.pe_ratio < 30,       # PE less than 30
        jq.valuation.market_cap > 100     # Market cap greater than 10B CNY
    ).order_by(
        jq.valuation.market_cap.desc()    # Sort by market cap descending
    ).limit(50),                          # Take top 50
    date='2024-06-30'
)
print(df)

Index Constituents

# Get CSI 300 constituents
stocks = jq.get_index_stocks('000300.XSHG')
print(f'CSI 300 has {len(stocks)} constituent stocks')

# Get industry constituents
stocks = jq.get_industry_stocks('I64')  # Banking

Industry Classification

# Get the industry a stock belongs to
industry = jq.get_industry('000001.XSHE')
print(industry)

# Get Shenwan Level-1 industry list
industries = jq.get_industries(name='sw_l1')
print(industries)

Trading Calendar

# Get list of trading days
days = jq.get_trade_days(start_date='2024-01-01', end_date='2024-06-30')

# Get all trading days
all_days = jq.get_all_trade_days()

Stock Basic Information

# Get all A-share listings
stocks = jq.get_all_securities(types=['stock'], date='2024-06-30')
print(f'Total A-shares: {len(stocks)}')

# Get info for a single stock
info = jq.get_security_info('000001.XSHE')
print(f'Name: {info.display_name}, Listing date: {info.start_date}')

# Get ST stocks
st_stocks = jq.get_extras('is_st', ['000001.XSHE'], start_date='2024-01-01', end_date='2024-06-30')

Top Trader (Dragon & Tiger) List Data

# Get Dragon & Tiger list data
df = jq.get_billboard_list(stock_list=None, start_date='2024-06-01', end_date='2024-06-30')
print(df.head())

Margin Trading Data

# Get margin trading summary data
df = jq.get_mtss('000001.XSHE', start_date='2024-01-01', end_date='2024-06-30')
print(df.head())

Trading Functions (Online Strategy)

Order by Quantity

# Buy 100 shares
order('000001.XSHE', 100)

# Sell 200 shares
order('000001.XSHE', -200)

# Limit price buy
order('000001.XSHE', 100, LimitOrderStyle(11.50))

# Market price buy
order('000001.XSHE', 100, MarketOrderStyle())

Rebalance to Target

# Rebalance to target quantity
order_target('000001.XSHE', 1000)     # Adjust to hold 1000 shares
order_target('000001.XSHE', 0)        # Liquidate position

# Rebalance to target value
order_target_value('000001.XSHE', 100000)  # Adjust to 100,000 CNY market value

# Rebalance to target percentage (of total assets)
order_target_percent('000001.XSHE', 0.3)   # Adjust to 30% of total assets

Cancel Order

# Get unfilled orders
open_orders = get_open_orders()
# Cancel a specific order
cancel_order(order_id)

Account & Position Queries

def handle_data(context, data):
    # Account information
    cash = context.portfolio.available_cash       # Available cash
    total = context.portfolio.total_value          # Total assets
    positions_value = context.portfolio.positions_value  # Position market value

    # Query positions
    for stock, pos in context.portfolio.positions.items():
        print(f'{stock}: Quantity={pos.total_amount}, '
              f'Sellable={pos.closeable_amount}, '
              f'Cost={pos.avg_cost:.2f}, '
              f'Current price={pos.price:.2f}, '
              f'Market value={pos.value:.2f}')

Scheduled Tasks

def initialize(context):
    # Execute before market open each day
    run_daily(before_market_open, time='before_open')
    # Execute at specified time each day
    run_daily(market_open, time='09:35')
    run_daily(afternoon_check, time='14:50')
    # Execute weekly
    run_weekly(weekly_rebalance, weekday=1, time='09:35')  # Every Monday
    # Execute monthly
    run_monthly(monthly_rebalance, monthday=1, time='09:35')  # 1st of each month

def before_market_open(context):
    log.info('Pre-market preparation')

def market_open(context):
    log.info('Market open trading')

Risk Management

def initialize(context):
    g.security = '000001.XSHE'
    set_benchmark('000300.XSHG')

def handle_data(context, data):
    security = g.security
    # Get current price
    current_price = data[security].close

    # Check position P&L
    if security in context.portfolio.positions:
        pos = context.portfolio.positions[security]
        cost = pos.avg_cost
        pnl_ratio = (current_price - cost) / cost

        # Take profit at 10%
        if pnl_ratio >= 0.10:
            order_target(security, 0)
            log.info(f'Take profit: {security} gain {pnl_ratio:.2%}')
        # Stop loss at 5%
        elif pnl_ratio <= -0.05:
            order_target(security, 0)
            log.info(f'Stop loss: {security} loss {pnl_ratio:.2%}')

Full Example — Multi-Factor Stock Selection Strategy

def initialize(context):
    set_benchmark('000300.XSHG')
    set_order_cost(OrderCost(open_tax=0, close_tax=0.001,
                              open_commission=0.0003, close_commission=0.0003,
                              min_commission=5), type='stock')
    g.hold_num = 10  # Number of holdings
    # Rebalance on the 1st trading day of each month
    run_monthly(rebalance, monthday=1, time='09:35')

def rebalance(context):
    # Multi-factor stock selection
    df = get_fundamentals(
        query(
            valuation.code,
            valuation.pe_ratio,
            valuation.pb_ratio,
            valuation.market_cap,
            indicator.roe,
        ).filter(
            valuation.pe_ratio > 5,
            valuation.pe_ratio < 25,
            valuation.pb_ratio > 0.5,
            valuation.pb_ratio < 5,
            indicator.roe > 10,
            valuation.market_cap > 100,
        ).order_by(
            valuation.pe_ratio.asc()
        ).limit(g.hold_num)
    )

    target_stocks = list(df['code'])
    log.info(f'Selected {len(target_stocks)} stocks')

    # Sell stocks not in the target list
    for stock in context.portfolio.positions:
        if stock not in target_stocks:
            order_target(stock, 0)

    # Equal-weight buy target stocks
    if target_stocks:
        per_value = context.portfolio.total_value * 0.95 / len(target_stocks)
        for stock in target_stocks:
            order_target_value(stock, per_value)

def handle_data(context, data):
    pass

Advanced Examples

Sector Rotation Strategy

def initialize(context):
    set_benchmark('000300.XSHG')
    g.hold_num = 5
    g.industry_etfs = {
        '512010.XSHG': '医药ETF',
        '512880.XSHG': '证券ETF',
        '512800.XSHG': '银行ETF',
        '515030.XSHG': '新能源车ETF',
        '159995.XSHE': '芯片ETF',
        '512690.XSHG': '白酒ETF',
        '510300.XSHG': '沪深300ETF',
        '159915.XSHE': '创业板ETF',
    }
    run_monthly(rebalance, monthday=1, time='09:35')

def rebalance(context):
    """Sort by 20-day momentum, select the top N strongest ETFs"""
    momentum = {}
    for etf, name in g.industry_etfs.items():
        df = attribute_history(etf, 20, '1d', ['close'])
        if len(df) >= 20:
            ret = (df['close'].iloc[-1] / df['close'].iloc[0]) - 1
            momentum[etf] = ret

    # Sort by momentum
    sorted_etfs = sorted(momentum.items(), key=lambda x: x[1], reverse=True)
    targets = [etf for etf, _ in sorted_etfs[:g.hold_num]]
    log.info(f'This month selected: {[g.industry_etfs[e] for e in targets]}')

    # Sell positions not in the target list
    for stock in context.portfolio.positions:
        if stock not in targets:
            order_target(stock, 0)

    # Equal-weight buy
    per_value = context.portfolio.total_value * 0.95 / len(targets)
    for etf in targets:
        order_target_value(etf, per_value)

def handle_data(context, data):
    pass

Data Research — Market-Wide Financial Screening

import jqdatasdk as jq
import pandas as pd

jq.auth('your_username', 'your_password')

# Market-wide financial screening: Low PE + High ROE + High growth
df = jq.get_fundamentals(
    jq.query(
        jq.valuation.code,
        jq.valuation.pe_ratio,
        jq.valuation.pb_ratio,
        jq.valuation.market_cap,
        jq.indicator.roe,
        jq.indicator.inc_revenue_year_on_year,    # YoY revenue growth rate
        jq.indicator.inc_net_profit_year_on_year,  # YoY net profit growth rate
    ).filter(
        jq.valuation.pe_ratio > 5,
        jq.valuation.pe_ratio < 20,
        jq.indicator.roe > 15,
        jq.indicator.inc_revenue_year_on_year > 10,
        jq.indicator.inc_net_profit_year_on_year > 10,
        jq.valuation.market_cap > 50,
    ).order_by(
        jq.indicator.roe.desc()
    ).limit(30),
    date='2024-06-30'
)

print(f'Screened {len(df)} stocks:')
print(df.to_string(index=False))

# Export to CSV
df.to_csv('selected_stocks.csv', index=False)

Usage Tips

• JoinQuant strategies run on the cloud — no local trading environment installation needed.
• The JQData local SDK has a free daily data quota, suitable for data research.
• Use attribute_history to get historical data within strategies; use get_price in the research environment.
• Use set_order_cost to set realistic commissions during backtesting — the default commission is 0.
• The g object is used for persisting variables across functions (similar to Ptrade).
• Documentation: https://www.joinquant.com/help/api/help

社区与支持

由 大佬量化 (Boss Quant) 维护 — 量化交易教学与策略研发团队。

微信客服: bossquant1 · Bilibili · 搜索 大佬量化 on 微信公众号 / Bilibili / 抖音