# Aquamarine Financial (Cayman) Ltd 13F holdings

> Latest reported SEC 13F equity book. Teaser: top 10 of 17 long-equity positions.
> CIK 2104187. Latest filing Q1 2026, as of quarter end 2026-03-31. Long-equity book $1.4B.

## Top holdings (teaser)

| # | Ticker | Issuer | Value | % of book | Change |
|---|--------|--------|-------|-----------|--------|
| 1 | n/a | Banco Bradesco S A | $588.7M | 43.1% | Added |
| 2 | YPF | Ypf Sociedad Anonima | $417.2M | 30.6% | Reduced |
| 3 | n/a | Grupo Financiero Galicia S.a | $110.7M | 8.1% | Added |
| 4 | GGB | Gerdau Sa | $60.4M | 4.4% | Reduced |
| 5 | n/a | Banco Santander Brasil S A | $58.2M | 4.3% | Added |
| 6 | n/a | Banco Macro Sa | $41.2M | 3.0% | Reduced |
| 7 | SCOUSD | Proshares TR II | $28.3M | 2.1% | New |
| 8 | n/a | Banco Bbva Argentina S A | $19.8M | 1.5% | Added |
| 9 | n/a | Nu Hldgs Ltd | $14.4M | 1.1% | New |
| 10 | n/a | Cosan S A | $8.6M | 0.6% | Held |

## Latest moves

Bought: SCOUSD, Nu Hldgs Ltd, Alpha Tau Medical Ltd
Sold: YPF, GGB, Banco Macro Sa

Counts and totals reflect the 13F filers and securities Arkolith tracks, not the entire institutional universe. Option legs are excluded from the book above.

## Full data via the API and MCP

This page is a teaser. The complete book, full quarter-over-quarter history, and per-datapoint
provenance are available through the metered REST API and MCP server.

- Endpoint: https://arkolith.com/api/mcp (transport: streamable-http)
- Auth: Bearer API key. Mint one and copy a ready-to-paste command at https://arkolith.com/connect
- Claude Code: `claude mcp add --transport http arkolith https://arkolith.com/api/mcp --header "Authorization: Bearer YOUR_API_KEY"`
- Discovery: `tools/list` is free; `tools/call` is metered by credits.

### Machine-readable
- Tool catalog JSON: https://arkolith.com/api/mcp/catalog
- MCP descriptor: https://arkolith.com/.well-known/mcp.json
- OpenAPI 3.1 REST spec: https://arkolith.com/openapi.json
- Full LLM guide: https://arkolith.com/llms-full.txt
- Human docs: https://arkolith.com/docs

## Source and method

- Source: SEC EDGAR 13F-HR (public domain). Long-equity positions only (option legs excluded). Filed quarterly, about a 45-day lag.
- Primary source: https://www.sec.gov/Archives/edgar/data/2104187/000149315226023398/
- Human page: https://arkolith.com/fund/aquamarine-financial-cayman-ltd-2104187
- Per-datapoint lineage: call the `provenance.get` MCP tool for the source URL and fetch history behind any figure.

Paid product with a one-time evaluation grant at signup (no card to evaluate). Most calls cost 1 credit (~$0.01); heavier point-in-time / cross-source tools cost more.

_Latest disclosed public filings. Data, not investment advice._