{
  "city": "shanghai",
  "city_name": "Shanghai",
  "date": "2026-04-18",
  "unit": "C",
  "station": "ZSPD",
  "event_end_date": "2026-04-18T12:00:00Z",
  "hours_at_discovery": 5.4,
  "status": "open",
  "position": null,
  "actual_temp": null,
  "resolved_outcome": null,
  "pnl": null,
  "forecast_snapshots": [
    {
      "ts": "2026-04-18T06:34:25.740032+00:00",
      "horizon": "D+0",
      "hours_left": 5.4,
      "ecmwf": 19.3,
      "hrrr": null,
      "metar": 21.0,
      "best": 19.3,
      "best_source": "ecmwf"
    },
    {
      "ts": "2026-04-18T07:36:11.273578+00:00",
      "horizon": "D+0",
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      "ecmwf": 19.3,
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      "best_source": "ecmwf"
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  "market_snapshots": [
    {
      "ts": "2026-04-18T06:34:25.740032+00:00",
      "top_bucket": "21.0-21.0C",
      "top_price": 0.962
    },
    {
      "ts": "2026-04-18T07:36:11.273578+00:00",
      "top_bucket": "21.0-21.0C",
      "top_price": 0.996
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  ],
  "all_outcomes": [
    {
      "question": "Will the highest temperature in Shanghai be 15°C or below on April 18?",
      "market_id": "1996499",
      "range": [
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    },
    {
      "question": "Will the highest temperature in Shanghai be 16°C on April 18?",
      "market_id": "1996500",
      "range": [
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      "bid": 0.0,
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      "volume": 7946.0
    },
    {
      "question": "Will the highest temperature in Shanghai be 17°C on April 18?",
      "market_id": "1996501",
      "range": [
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        17.0
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      "bid": 0.0,
      "ask": 1.0,
      "price": 0.0,
      "spread": 1.0,
      "volume": 15455.0
    },
    {
      "question": "Will the highest temperature in Shanghai be 18°C on April 18?",
      "market_id": "1996502",
      "range": [
        18.0,
        18.0
      ],
      "bid": 0.0,
      "ask": 1.0,
      "price": 0.0,
      "spread": 1.0,
      "volume": 41739.0
    },
    {
      "question": "Will the highest temperature in Shanghai be 19°C on April 18?",
      "market_id": "1996503",
      "range": [
        19.0,
        19.0
      ],
      "bid": 0.0,
      "ask": 1.0,
      "price": 0.0,
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      "volume": 40119.0
    },
    {
      "question": "Will the highest temperature in Shanghai be 20°C on April 18?",
      "market_id": "1996504",
      "range": [
        20.0,
        20.0
      ],
      "bid": 0.0005,
      "ask": 0.9995,
      "price": 0.0005,
      "spread": 0.999,
      "volume": 45988.0
    },
    {
      "question": "Will the highest temperature in Shanghai be 21°C on April 18?",
      "market_id": "1996505",
      "range": [
        21.0,
        21.0
      ],
      "bid": 0.996,
      "ask": 0.004,
      "price": 0.996,
      "spread": -0.992,
      "volume": 45982.0
    },
    {
      "question": "Will the highest temperature in Shanghai be 22°C on April 18?",
      "market_id": "1996506",
      "range": [
        22.0,
        22.0
      ],
      "bid": 0.0035,
      "ask": 0.9965,
      "price": 0.0035,
      "spread": 0.993,
      "volume": 22381.0
    },
    {
      "question": "Will the highest temperature in Shanghai be 23°C on April 18?",
      "market_id": "1996507",
      "range": [
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        23.0
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      "bid": 0.0035,
      "ask": 0.9965,
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      "volume": 14356.0
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    {
      "question": "Will the highest temperature in Shanghai be 24°C on April 18?",
      "market_id": "1996508",
      "range": [
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      "bid": 0.0005,
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    {
      "question": "Will the highest temperature in Shanghai be 25°C or higher on April 18?",
      "market_id": "1996509",
      "range": [
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  "created_at": "2026-04-18T06:34:27.575987+00:00"
}