curl --request GET \
  --url https://api.ivory.finance/v1/companies/{cik}/sentiment/trend \
  --header 'X-API-Key: <api-key>'

{
  "cik": "<string>",
  "granularity": "<string>",
  "series": [
    {
      "period": "2023-11-07T05:31:56Z",
      "filings_count": 123,
      "avg_v_negative": 123,
      "avg_negative": 123,
      "avg_neutral": 123,
      "avg_positive": 123,
      "avg_v_positive": 123,
      "avg_sentiment_score": 123,
      "dominant_label": "<string>"
    }
  ],
  "company_name": "<string>",
  "ticker": "<string>"
}