{
      "metadata": {
        "symbol": "LE",
        "name": "Live Cattle",
        "exchange": "CME"
    },
    "data": [
        {
           "date": "2013-07-01",
           "symbol": "LE",
            "month": 7,
            "year": 22,
            "last": 108.42,
            "open": 106.01,
            "high": 109.34,
            "low": 104.56,
            "change": 1.11
            "change_p": 0.02515
        },
        ...
    ]
    ...
  }