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 IONX 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/IONX"
Use Arkolith to show who owns IONX, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | UBS Group AG | $659K | 32K | ▲New +32K sh | Q1 2026 | |
| 2 | RENAISSANCE TECHNOLOGIES LLC | $624K | 30K | ▲New +30K sh | Q1 2026 | |
| 3 | Jump Financial, LLC | $549K | 26K | ▲New +26K sh | Q1 2026 | |
| 4 | GROUP ONE TRADING LLC | $365K | 18K | ▲New +18K sh | Q1 2026 | |
| 5 | StoneX Group Inc. | $235K | 11K | ▲New +11K sh | Q1 2026 | |
| 6 | JANE STREET GROUP, LLC | $214K | 10K | ▲New +10K sh | Q1 2026 | |
| 7 | Tower Research Capital LLC (TRC) | $4K | 175 | ▲New +175 sh | Q1 2026 | |
| 8 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | $2K | 100 | ▲New +100 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.
| Class | 13F holders | Value held |
|---|---|---|
| IREETF | 9 funds | $4.9M |
| IONXthis pageETF | 8 funds | $2.7M |
| HIMZETF | 6 funds | $1.8M |
| 88636Y102ETF | 6 funds | $1.7M |
| RIOXDEFIANCE DAILY T | 5 funds | $3.5M |
| 88636Y409DEFIANCE DAILY T | 5 funds | $744K |
| 88636Y201ETF | 2 funds | $634K |
| 88636Y706DEFIANCE DAILY | 2 funds | $263K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 8 funds | $12.5B |
| BROADCOM INCAVGO | 8 funds | $9.4B |
| AMAZON.COM INCAMZN | 8 funds | $8.1B |
| ALPHABET INC-CL AGOOGL | 8 funds | $7.7B |
| JPMORGAN CHASE & COJPM | 8 funds | $6.1B |
| META PLATFORMS INC-CLASS AMETA | 8 funds | $5.7B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 8 funds | $4.2B |
| VISA INC-CLASS A SHARESV | 8 funds | $4.0B |
| ELI LILLY & COLLY | 8 funds | $3.9B |
| MICRON TECHNOLOGY INCMU | 8 funds | $3.6B |
| PALANTIR TECHNOLOGIES INC-APLTR | 8 funds | $3.4B |
| SPDR GOLD SHARESGLD | 8 funds | $3.1B |
Ranked by how many of IONX'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 IONX. 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.