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 BTCL 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/BTCL"
Use Arkolith to show who owns BTCL, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | SIGNATUREFD, LLC | $313K | 21K | ▲New +21K sh | Q1 2026 | |
| 2 | GTS SECURITIES LLC | $194K | 13K | ▲+76% Added · +5K sh | Q1 2026 | |
| 3 | CREATIVE FINANCIAL DESIGNS INC /ADV | $12K | 813 | —Held | Q1 2026 | |
| 4 | GROUP ONE TRADING LLC | $8K | 550 | ▲New +550 sh | Q1 2026 | |
| 5 | SIMPLEX TRADING, LLC | $8K | 507 | ▼−82% Reduced · −2K sh | Q1 2026 | |
| 6 | CBIZ Investment Advisory Services, LLC | $230 | 15 | ▲+200% Added · +10 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 |
|---|---|---|
| BTCLthis pageT REX TARGET ETF | 6 funds | $536K |
| ETUT REX 2X LONG ET | 4 funds | $96K |
| BTCZT REX TARGET ETF | 3 funds | $1.4M |
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 |
|---|---|---|
| AMAZON.COM INCAMZN | 4 funds | $1.7B |
| MICRON TECHNOLOGY INCMU | 4 funds | $1.6B |
| META PLATFORMS INC-CLASS AMETA | 4 funds | $1.0B |
| BROADCOM INCAVGO | 4 funds | $1.0B |
| MICROSOFT CORPMSFT | 4 funds | $993.9M |
| ALPHABET INC-CL AGOOGL | 4 funds | $826.1M |
| WARNER BROS DISCOVERY INCWBD | 4 funds | $812.2M |
| TESLA INCTSLA | 4 funds | $783.6M |
| NORFOLK SOUTHERN CORPNSC | 4 funds | $752.1M |
| JPMORGAN CHASE & COJPM | 4 funds | $725.5M |
| BLACKROCK INCBLK | 4 funds | $676.3M |
| INTUITIVE SURGICAL INCISRG | 4 funds | $626.3M |
Ranked by how many of BTCL'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 BTCL. 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.