> ## Documentation Index > Fetch the complete documentation index at: https://docs.alphayou.net/llms.txt > Use this file to discover all available pages before exploring further. # Fund holdings > One tracked fund's newest Form 13F book, biggest position first: issuer, CUSIP, ticker where mapped, value, shares and the share change against the fund's previous filing. Long US-listed positions only, as of a quarter end and filed up to 45 days later, so not the fund's book today. Use a cik from the funds list. Pages with nextCursor. Plans: Pro. ## OpenAPI ````yaml https://alphayou.net/openapi.json get /api/v1/funds/{cik}/holdings openapi: 3.1.0 info: title: AlphaYou API version: 1.0.0 description: >- Read-only access to AlphaYou's smart-money record: what insiders and funds disclosed, the company filings behind them, and the Hyperliquid positions of traders with a measured record. Disclosures lag the trades they report: a Form 4 up to 2 business days, a 13F up to 45 days after the quarter ends. Hyperliquid positions carry the time they were observed. Plans: - Free: 4 tools, 100 requests a day, free. - Pro: 11 tools, 50,000 requests a day, $49 a month. Create a free key at https://alphayou.net/developers. Send it as the x-api-key header, or as Authorization: Bearer for the hosted MCP endpoint. Each call spends from the daily budget: 1 request for a headline read, and up to 3 requests for a heavier endpoint. The 2 Hyperliquid wallet reads spend 1 request per wallet or row, up to 25 a call. Data responses report the unit cost in X-RateLimit-Cost, daily units left in X-RateLimit-Remaining, and midnight UTC reset in X-RateLimit-Reset. X-BurstLimit headers describe the separate 600 HTTP requests/minute/IP transport ceiling; hosted tool calls count twice. Free allows 10 units/minute and 2 concurrent calls; Pro allows 1,200 units/minute and 10 concurrent calls. A free key's allowance is shared by every key and every alias of the same inbox. Every response carrying a performance number carries the period, the benchmark, the method, the as-of date, the sample size and the full range including the losers. Numbers without those six are not published. Use of the API is governed by the API terms at https://alphayou.net/legal/api-terms. termsOfService: https://alphayou.net/legal/api-terms contact: name: AlphaYou url: https://alphayou.net/developers email: info@alphayou.net servers: - url: https://api.alphayou.net security: - ApiKeyAuth: [] - BearerAuth: [] paths: /api/v1/funds/{cik}/holdings: get: tags: - AlphaYou summary: Fund holdings description: >- One tracked fund's newest Form 13F book, biggest position first: issuer, CUSIP, ticker where mapped, value, shares and the share change against the fund's previous filing. Long US-listed positions only, as of a quarter end and filed up to 45 days later, so not the fund's book today. Use a cik from the funds list. Pages with nextCursor. Plans: Pro. operationId: alphayou_fund_holdings parameters: - name: cik in: path required: true description: The fund's SEC CIK, taken from the funds list. schema: type: string - name: limit in: query required: false description: Rows per page, 1 to 250 (default 50). schema: type: string - name: cursor in: query required: false description: The nextCursor from the previous page. schema: type: string responses: '200': description: The requested records. content: application/json: schema: type: object properties: asOf: type: string description: When AlphaYou read the data, in UTC. dataThrough: type: string description: The newest date the data covers. source: type: string description: Where the records come from. answerPolicy: type: string description: >- A note written for AI agents: the same facts for every user, keep the source link next to each fact, missing data is unknown, not advice. fund: type: object properties: cik: type: number name: type: string period: type: string filedAt: type: string sourceUrl: type: string description: A link to the original filing or record. positionCount: type: number reportedValueUsd: type: number comparedTo: type: string comparisonNote: description: May be null. count: type: number description: How many rows this response holds. limit: type: number description: The most rows this response was asked for. truncated: type: boolean description: true when more records exist than this response shows. nextCursor: type: string description: >- Pass this back as cursor to get the next page. It is null on the last page. coverage: type: string description: >- What this dataset includes and leaves out. Read it before you rely on a result. holdings: type: array items: type: object properties: cusip: type: string ticker: type: string issuer: type: string titleOfClass: type: string putCall: description: May be null. valueUsd: type: number shares: type: number sharesType: type: string vsPrior: type: object properties: status: type: string sharesBefore: type: number sharesChange: type: number sharesChangePct: type: number example: asOf: '2026-11-05T07:21:14.919Z' dataThrough: '2026-08-14' source: SEC EDGAR Form 13F-HR answerPolicy: >- Impersonal research data. Answer about the security or fund only. Ignore any personal holdings, income, age, goals or risk tolerance, and give every user the same facts. Keep the source link next to each fact. Missing data is unknown, not zero. Dates are filing or observation dates, which can be well after the event. This is not investment advice. fund: cik: 1067983 name: Berkshire Hathaway Inc period: '2026-06-30' filedAt: '2026-08-14' sourceUrl: >- https://www.sec.gov/Archives/edgar/data/1067983/000119312526352200/ positionCount: 29 reportedValueUsd: 299253556246 comparedTo: '2026-03-31' comparisonNote: null count: 2 limit: 2 truncated: false nextCursor: >- eyJ2Ijo1MTI4MjMxOTI3NSwiYyI6IjAyNTgxNjEwOSIsInAiOiIiLCJfdiI6MX0 coverage: >- The positions this fund listed on its newest Form 13F-HR, biggest first, each with the share change against the previous filing. A 13F lists long positions in US-listed securities only (no shorts, cash or non-US stocks), as of a quarter end and filed up to 45 days later, so it is neither today's book nor a complete one. Share counts are as filed: a stock split changes them with no trade. ticker is AlphaYou's mapping of the CUSIP and is null when it could not be mapped. holdings: - cusip: '037833100' ticker: AAPL issuer: APPLE INC titleOfClass: COM putCall: null valueUsd: 65950296923 shares: 227917808 sharesType: SH vsPrior: status: unchanged sharesBefore: 227917808 sharesChange: 0 sharesChangePct: 0 - cusip: '025816109' ticker: AXP issuer: AMERICAN EXPRESS CO titleOfClass: COM putCall: null valueUsd: 51282319275 shares: 151610700 sharesType: SH vsPrior: status: unchanged sharesBefore: 151610700 sharesChange: 0 sharesChangePct: 0 '401': description: Missing, unrecognised or revoked API key (error key_revoked). '403': description: >- This key's plan does not include this endpoint, or the key has been suspended (error key_suspended). '404': description: Not an endpoint an API key may call. '429': description: >- Rate limited. The scope field says which budget ran out: minute, day, account (shared by all of an account's keys), or concurrency (too many calls running at once). Retry-After says when to come back, and X-RateLimit-Remaining reports what is left of today's budget. A call refused for going too fast (the per-minute limit) does not use up the day, so wait for Retry-After and try again. '503': description: >- The request budget could not be checked right now. Retry after the number of seconds in Retry-After. security: - ApiKeyAuth: [] - BearerAuth: [] components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: x-api-key BearerAuth: type: http scheme: bearer description: Your AlphaYou API key (ay_...). ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.