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 SRTY 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/SRTY"
Use Arkolith to show who owns SRTY, 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 | $3.2M | 81K | ▼−29% Reduced · −33K sh | Q1 2026 | |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2.5M | 62K | ▲+37% Added · +17K sh | Q1 2026 | |
| 3 | UBS Group AG | $1.6M | 40K | ▲New +40K sh | Q1 2026 | |
| 4 | JPMORGAN CHASE & CO | $599K | 14K | ▲14× Added · +13K sh | Q1 2026 | |
| 5 | GTS SECURITIES LLC | $426K | 11K | ▲+58% Added · +4K sh | Q1 2026 | |
| 6 | Squarepoint Ops LLC | $368K | 9K | ▲New +9K sh | Q1 2026 | |
| 7 | JANE STREET GROUP, LLC | $332K | 8K | ▲New +8K sh | Q1 2026 | |
| 8 | Optiver Holding B.V. | $135K | 3K | ▲New +3K sh | Q1 2026 | |
| 9 | Tower Research Capital LLC (TRC) | $53K | 1K | ▲332× Added · +1K sh | Q1 2026 | |
| 10 | Qube Research & Technologies Ltd | $13K | 326 | ▼−96% Reduced · −9K sh | Q1 2026 | |
| 11 | MORGAN STANLEY | $2K | 50 | ▲New +50 sh | Q1 2026 | |
| 12 | DANSKE BANK A/S | $40 | 1 | —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.
| Class | 13F holders | Value held |
|---|---|---|
| SQQQULTRAPRO SHORT | 51 funds | $226.5M |
| SDSULTRASHRT S&P500 | 34 funds | $52.3M |
| SPXUULTRAPRO SHORT S | 30 funds | $45.2M |
| SRTYthis pageULTRAPRO SHRT RU | 12 funds | $9.2M |
| ETHDULTRASHORT ETHER | 6 funds | $6.0M |
| CRCAULTRA CRCL NEW | 6 funds | $3.6M |
| 74350P691GENIUS MONEY MRK | 5 funds | $20.0B |
| 74350P584ULTRASHORT SEMIC | 5 funds | $2.6M |
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 |
|---|---|---|
| NVIDIA CORPNVDA | 17 funds | $202.5B |
| MICROSOFT CORPMSFT | 17 funds | $147.3B |
| AMAZON.COM INCAMZN | 17 funds | $106.3B |
| ALPHABET INC-CL AGOOGL | 17 funds | $90.5B |
| BROADCOM INCAVGO | 17 funds | $85.9B |
| ALPHABET INC-CL CGOOG | 17 funds | $75.0B |
| META PLATFORMS INC-CLASS AMETA | 17 funds | $72.8B |
| JPMORGAN CHASE & COJPM | 17 funds | $51.6B |
| TESLA INCTSLA | 17 funds | $48.1B |
| ELI LILLY & COLLY | 17 funds | $43.9B |
| VISA INC-CLASS A SHARESV | 17 funds | $31.9B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 17 funds | $29.9B |
Ranked by how many of SRTY'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 SRTY. 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.