13F.chat — 13F Holdings Chat and AI Portfolio Research
13F.chat turns SEC 13F filings into decisions: track what top managers bought, at what estimated cost, and follow smart money with AI explanations.
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llms.txt Content
# 13F.chat
> AI research terminal for SEC 13F filings, hedge fund portfolio tracking, holdings discovery, and portfolio optimization.
13F.chat helps investors analyze public SEC 13F filings with AI-assisted research, fund comparison, holdings change detection, portfolio insights, and optimization workflows.
## Primary Use Cases
- Track hedge fund and institutional 13F holdings.
- Compare managers, funds, sectors, stocks, and quarterly filing changes.
- Ask an AI assistant questions about public 13F data and portfolio ideas.
- Run portfolio optimization and research workflows.
## Key Pages
- [Home](https://13f.chat/)
- [13F Discovery Radar](https://13f.chat/13f-discovery-radar)
- [13F Holdings](https://13f.chat/13f-holdings)
- [Insights](https://13f.chat/insights)
- [Optimization](https://13f.chat/optimization)
- [Compare Funds](https://13f.chat/compare)
- [Articles](https://13f.chat/articles)
- [Warren Buffett Portfolio](https://13f.chat/warren-buffett-portfolio)
- [Fundsmith holdings and Terry Smith portfolio research](https://13f.chat/terry-smith-fundsmith)
- [Oakmark Fund holdings and Bill Nygren portfolio research](https://13f.chat/bill-nygren-oakmark-fund)
- [Dodge and Cox Stock Fund holdings and portfolio changes](https://13f.chat/dodge-and-cox-stock-fund)
- [Berkshire Hathaway 13F holdings and portfolio](https://13f.chat/berkshire-hathaway)
- [First Eagle Investment Management holdings and 13F research](https://13f.chat/first-eagle-investment-management)
- [Warren Buffett investment lineage across four 13F portfolios](https://13f.chat/warren-buffett-investment-lineage)
- [13F consensus holdings across five quality-value managers](https://13f.chat/smart-money-quality-value-consensus)
- [Berkshire Hathaway B Stock Context](https://13f.chat/stocks/BRK.B)
- [Berkshire Hathaway Class A Stock Context](https://13f.chat/stocks/BRK.A)
- [Portfolio at Risk](https://13f.chat/portfolio-at-risk)
- [Tariff Impact Portfolio](https://13f.chat/tariff-impact-portfolio)
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OpenAPI Spec (preview)
{
"openapi": "3.1.0",
"info": {
"title": "13F.chat Public Discovery API",
"version": "1.34.98",
"description": "Public discovery metadata for 13F.chat pages, sitemap, LLM guidance, and selected public configuration endpoints."
},
"servers": [
{
"url": "https://13f.chat"
}
],
"paths": {
"/llms.txt": {
"get": {
"summary": "Short LLM guidance for 13F.chat",
"responses": {
"200": {
"description": "Markdown guidance