Fund Letters

List fund-letter investors

Lists every investment firm with published fund letters, with coverage stats (letters, funds, companies, theses, period range) and the firm's style/sector/geography profile from its most recent letters.

Sorted by coverage (letterCount) descending. Use investorId with /v1/fund-letters/investors/{investorId} for the full profile and letter feed, or as a filter on /v1/fund-letters.

Free-trial keys receive the investors included in the trial rather than the full list.

get/v1/fund-letters/investors

Query parameters

apiKeystring

API Key (alternatively send via X-Api-Key header)

pageNumberinteger

Optional. Page number (1-indexed). Defaults to 1.

Example:1

pageSizeinteger

Optional. Rows per page. Defaults to 250, max 1000.

Example:250

Response

Paginated investors, most-covered first.

Example response

{
  "pagination": {
    "page": 1,
    "pageSize": 250,
    "totalCount": 512,
    "totalPages": 3,
    "hasNextPage": true
  },
  "data": [
    {
      "investorId": "fscl_investor_4SZX6KKJ822",
      "investorName": "Harris Associates / Oakmark",
      "investorType": "asset_manager",
      "fundCount": 12,
      "letterCount": 128,
      "companyCount": 210,
      "thesisCount": 940,
      "firstPeriod": "2020Q1",
      "latestPeriod": "2026Q1",
      "styleTags": [
        "growth"
      ],
      "sectorFocus": [
        "information_technology"
      ],
      "geographicFocus": [
        "united_states"
      ],
      "principalNames": [
        "Bill Nygren"
      ]
    }
  ]
}

Changes

No recorded changes to this endpoint across all 6 revisions of this API.