solve repeated call for get_object

GET /portfolio/39889/insights/
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

[
    {
        "day": "2025-07-02",
        "trades": 3,
        "pl_value_fees": -49.0
    },
    {
        "day": "2025-07-04",
        "trades": 2,
        "pl_value_fees": 78.0
    },
    {
        "day": "2025-07-09",
        "trades": 1,
        "pl_value_fees": 182.0
    },
    {
        "day": "2025-07-10",
        "trades": 2,
        "pl_value_fees": -172.0
    },
    {
        "day": "2025-07-11",
        "trades": 5,
        "pl_value_fees": -380.0
    },
    {
        "day": "2025-07-17",
        "trades": 2,
        "pl_value_fees": -2.0
    }
]