Populate dynamic field on strapi

existing data:
{
“data”: {
“id”: 1,
“attributes”: {
“createdAt”: “2024-06-10T09:55:50.754Z”,
“updatedAt”: “2024-06-13T07:15:30.094Z”,
“publishedAt”: “2024-06-10T09:55:53.325Z”,
“locale”: “en”,
“regular”: [
{
“id”: 5,
“date”: “2024-06-12”,
“last_price”: 4000,
“target_price”: 4500,
“buy_cons_today”: “0.9%”,
“buy_cons_last_trd_day”: “1.8%”,
“buy_cons_last_5_trd_days”: “3.0%”,
“total_of_recs”: 39,
“return_potential”: “48.32%”,
“status”: “downgrade”
}
],
}
},
}

expected:
{
“data”: {
“id”: 1,
“attributes”: {
“createdAt”: “2024-06-10T09:55:50.754Z”,
“updatedAt”: “2024-06-13T07:15:30.094Z”,
“publishedAt”: “2024-06-10T09:55:53.325Z”,
“locale”: “en”,
“regular”: [
{
“id”: 5,
“date”: “2024-06-12”,
“last_price”: 4000,
“target_price”: 4500,
“buy_cons_today”: “0.9%”,
“buy_cons_last_trd_day”: “1.8%”,
“buy_cons_last_5_trd_days”: “3.0%”,
“total_of_recs”: 39,
“return_potential”: “48.32%”,
“status”: “downgrade”,
“stock_list”: { name: “AAPL” }
}

],
}
},
}

i’m still using this param:
{{host}}/api/stock?populate=deep,4
what param should i use to achieved desired data?

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