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 RKLZ 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/RKLZ"
Use Arkolith to show who owns RKLZ, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Jump Financial, LLC | $3.3M | 137K | ▲New +137K sh | Q1 2026 | |
| 2 | CITADEL ADVISORS LLC | $416K | 17K | ▲New +17K sh | Q1 2026 | |
| 3 | StoneX Group Inc. | $200K | 8K | ▲New +8K sh | Q1 2026 | |
| 4 | Tower Research Capital LLC (TRC) | $2K | 100 | ▲+223% Added · +69 sh | 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 |
|---|---|---|
| NVIDIA CORPNVDA | 4 funds | $3.4B |
| AMAZON.COM INCAMZN | 4 funds | $1.7B |
| MICRON TECHNOLOGY INCMU | 4 funds | $1.7B |
| SS SPDR DOW JONES INDUS AVGDIA | 4 funds | $1.6B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 4 funds | $1.4B |
| MICROSOFT CORPMSFT | 4 funds | $1.1B |
| META PLATFORMS INC-CLASS AMETA | 4 funds | $1.1B |
| BROADCOM INCAVGO | 4 funds | $1.1B |
| ALPHABET INC-CL AGOOGL | 4 funds | $887.1M |
| TESLA INCTSLA | 4 funds | $880.2M |
| NORFOLK SOUTHERN CORPNSC | 4 funds | $781.4M |
| JPMORGAN CHASE & COJPM | 4 funds | $758.7M |
Ranked by how many of RKLZ'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 RKLZ. 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.