The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query XYF owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/XYF"
Use Arkolith to show who owns XYF, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $543K | 132K | ▼−9.3% Reduced · −13K sh | Q1 2026 | |
| 2 | Trexquant Investment LP | $466K | 113K | ▲+62% Added · +43K sh | Q1 2026 | |
| 3 | STATE STREET CORP | $96K | 23K | ▼−6.4% Reduced · −2K sh | Q1 2026 | |
| 4 | Quadrature Capital Ltd | $83K | 20K | ▼−81% Reduced · −84K sh | Q1 2026 | |
| 5 | CITADEL ADVISORS LLC | $58K | 14K | ▼−90% Reduced · −128K sh | Q1 2026 | |
| 6 | QRG CAPITAL MANAGEMENT, INC. | $44K | 11K | ▲New +11K sh | Q1 2026 | |
| 7 | SBI Securities Co., Ltd. | $140 | 34 | —Held | Q1 2026 | |
| 8 | Smartleaf Asset Management LLC | $8 | 2 | —Held | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
No Form 4 insider transactions on file yet.
| Company | Co-held by | Combined value |
|---|---|---|
| APPLE INCAAPL | 10 funds | $5.6B |
| AMAZON.COM INCAMZN | 10 funds | $4.0B |
| MICROSOFT CORPMSFT | 10 funds | $4.0B |
| BROADCOM INCAVGO | 10 funds | $2.7B |
| MICRON TECHNOLOGY INCMU | 10 funds | $2.3B |
| ALPHABET INC-CL CGOOG | 10 funds | $2.3B |
| TESLA INCTSLA | 10 funds | $2.2B |
| JPMORGAN CHASE & COJPM | 10 funds | $1.8B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 10 funds | $1.5B |
| ELI LILLY & COLLY | 10 funds | $1.2B |
| COSTCO WHOLESALE CORPCOST | 10 funds | $1.1B |
| EXXON MOBIL CORPXOM | 10 funds | $1.0B |
Ranked by how many of XYF's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
No filings captured for this ticker in the live stream yet.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for XYF. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.