US Market Data API

{
  "code": 0,
  "message": "ok",
  "data": {
    "symbol": "QQQ.US",
    "name": "纳斯达克100",
    "market": "US",
    "currency": "USD",
    "last": 717.67,
    "open": 710.85,
    "high": 718.915,
    "low": 709.69,
    "prev_close": 709.24,
    "change": 8.43,
    "change_pct": 1.1886,
    "volume": 29449781,
    "ts": "2026-09-03T16:00:00-04:00",
    "as_of": "2026-09-03",
    "delayed": true,
    "venue_mode": "consolidated",
    "venue_mode_label": "合并口径（全市场）",
    "timeliness": {
      "mode": "eod_only",
      "delayed": true,
      "delay_minutes": null,
      "label": "T+1 收盘数据",
      "max_date": "2026-09-03"
    },
    "source": "eod"
  }
}

Taken from a real call; arrays trimmed for readability.

{
  "code": 0,
  "message": "ok",
  "data": {
    "symbol": "QQQ.US",
    "name": "纳斯达克100",
    "market": "US",
    "currency": "USD",
    "period": "day",
    "adjust": "none",
    "adjust_applied": false,
    "venue_mode": "consolidated",
    "venue_mode_label": "合并口径（全市场）",
    "delayed": true,
    "as_of": "2026-09-03",
    "timeliness": { "mode": "eod_only", "delayed": true, "label": "T+1 收盘数据" },
    "start": "2026-07-24",
    "end": "2026-09-03",
    "count": 30,
    "bars": [
      { "ts": "2026-07-24", "open": 690.41, "high": 692.63, "low": 682.48, "close": 684.23, "volume": 42876658 },
      { "ts": "2026-07-27", "open": 691.68, "high": 692.3, "low": 675.945, "close": 682.12, "volume": 42681473 },
      { "...": "共 30 根，其余略" },
      { "ts": "2026-09-03", "open": 710.85, "high": 718.915, "low": 709.69, "close": 717.67, "volume": 29449781 }
    ]
  }
}

Taken from a real call; arrays trimmed for readability.

{
  "code": 403,
  "message": "分时数据暂不对外提供",
  "data": null
}

Taken from a real call; arrays trimmed for readability.

{
  "code": 0,
  "message": "ok",
  "data": {
    "symbol": "QQQ.US",
    "raw_symbol": "QQQ",
    "market": "US",
    "name": "纳斯达克100",
    "asset_type": "etf",
    "primary_venue": "XNAS",
    "currency": "USD",
    "listed_on": null,
    "delisted_on": null,
    "is_delisted": false,
    "is_popular": true,
    "lot_size": 40,
    "status": "active",
    "history_start": "2024-07-01",
    "history_end": "2026-09-03",
    "venue_mode": "consolidated",
    "note": null
  }
}

Taken from a real call; arrays trimmed for readability.

{
  "code": 0,
  "message": "ok",
  "data": {
    "type": "quote",
    "requested": 3,
    "succeeded": 2,
    "failed": 1,
    "distribution_mode": "eod_only",
    "results": {
      "QQQ.US": { "symbol": "QQQ.US", "last": 717.67, "change_pct": 1.1886, "as_of": "2026-09-03", "...": "字段与 /v1/quote 相同" },
      "SPY.US": { "...": "同上" }
    },
    "errors": [
      { "symbol": "NOPE.US", "code": 404, "message": "未找到标的 NOPE.US" }
    ]
  }
}

Taken from a real call; arrays trimmed for readability.

{
  "code": 0,
  "message": "ok",
  "data": {
    "query": "QQ",
    "market": "US",
    "total": 30,
    "count": 2,
    "items": [
      {
        "symbol": "QQQ.US",
        "raw_symbol": "QQQ",
        "market": "US",
        "name": "纳斯达克100",
        "asset_type": "etf",
        "primary_venue": "XNAS",
        "currency": "USD",
        "listed_on": null,
        "delisted_on": null,
        "is_delisted": false,
        "is_popular": true
      },
      { "...": "共 2 条，其余略" }
    ]
  }
}

Taken from a real call; arrays trimmed for readability.

{
  "code": 0,
  "message": "ok",
  "data": {
    "symbol": "QQQ.US",
    "time_range": "1Y",
    "strategy": "chandelier",
    "engine_version": "1.1.0",
    "venue_mode": "consolidated",
    "start_date": "2025-09-08",
    "end_date": "2026-09-04",
    "num_trades": 8,
    "win_rate": 50.0,
    "total_pnl_pct": 8.56,
    "annualized_pct": 8.66,
    "max_drawdown_pct": 11.12,
    "sharpe": 0.624,
    "profit_factor": 1.84,
    "buy_hold_pnl_pct": 24.2,
    "excess_return_pct": -15.64,
    "params": { "sma_period": 100, "atr_period": 14, "entry_mult": 2.0, "exit_mult": 3.0, "entry_mode": "chandelier", "trail_mode": "rolling", "...": "其余略" },
    "cost": {
      "commission_rate": 0.0,
      "min_commission": 0.0,
      "slippage_bps": 0.0,
      "initial_capital": 100000.0,
      "execute_on": "close"
    },
    "data_range": { "actual_start": "2025-09-08", "actual_end": "2026-09-04", "bars": 251, "truncated": false },
    "data_freshness": { "distribution_mode": "eod_only", "as_of": "2026-09-04", "delayed": true },
    "notes": [
      { "code": "no_cost_model", "level": "info", "message": "本次未计成本。实盘会有手续费与滑点…" }
    ],
    "trades": [{ "seq": 1, "entry_date": "2025-09-08", "entry_price": 578.87, "exit_date": "2025-10-10", "exit_price": 589.5, "pnl_pct": 1.8363363103978347, "exit_reason": "stop", "...": "其余略" }],
    "disclaimer": "数据与回测结果仅供研究参考，不构成任何投资建议。"
  }
}

Taken from a real call; arrays trimmed for readability.