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 IDX 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/IDX"
Use Arkolith to show who owns IDX, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.6M | 116K | ▼−69% Reduced · −254K sh | Q1 2026 | |
| 2 | STIFEL FINANCIAL CORP | $1.5M | 111K | ▲+5.1% Added · +5K sh | Q1 2026 | |
| 3 | OLD MISSION CAPITAL LLC | $1.3M | 94K | ▼−72% Reduced · −245K sh | Q1 2026 | |
| 4 | Focus Partners Wealth | $985K | 72K | ▲+0.9% Added · +646 sh | Q1 2026 | |
| 5 | JANE STREET GROUP, LLC | $616K | 45K | ▼−91% Reduced · −432K sh | Q1 2026 | |
| 6 | CITADEL ADVISORS LLC | $422K | 31K | ▲New +31K sh | Q1 2026 | |
| 7 | Militia Capital Management LLC | $402K | 29K | ▲New +29K sh | Q1 2026 | |
| 8 | SBI Securities Co., Ltd. | $63K | 5K | ▲+1.6% Added · +71 sh | Q1 2026 | |
| 9 | ROYAL BANK OF CANADA | $55K | 4K | ▲+96% Added · +2K sh | Q1 2026 | |
| 10 | MORGAN STANLEY | $4K | 301 | —Held | Q1 2026 | |
| 11 | Aptus Capital Advisors, LLC | $798 | 58 | —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 |
|---|---|---|
| ISHARES MSCI EAFE ETFEFA | 17 funds | $16.6B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 17 funds | $4.2B |
| ALIBABA GROUP HOLDING-SP ADRBABA | 17 funds | $3.0B |
| VANECK GOLD MINERS ETFGDX | 17 funds | $2.6B |
| WISDOMTREE JAPAN HEDGED EQDXJ | 17 funds | $1.8B |
| BP PLC-SPONS ADRBP | 17 funds | $1.5B |
| NOVO-NORDISK A/S-SPONS ADRNVO | 17 funds | $1.3B |
| NEWMONT CORPNEM | 17 funds | $1.0B |
| BHP GROUP LTD-SPON ADRBHP | 17 funds | $321.0M |
| PAN AMERICAN SILVER CORPPAAS | 17 funds | $211.7M |
| SS SPDR S&P 500 ETF TRUST-USSPY | 16 funds | $78.3B |
| APPLE INCAAPL | 16 funds | $28.7B |
Ranked by how many of IDX'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 IDX. 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.