{
    "type": "object",
    "properties": {
        "date": {
            "type": "string"
        },
        "exchange": {
            "type": "string"
        },
        "split_factor": {
            "type": "integer"
        },
        "symbol": {
            "type": "string"
        },
        "volume": {
            "type": "integer"
        }
    },
    "version": 4
}