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 UCO 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/UCO"
Use Arkolith to show who owns UCO, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $10.8M | 274K | ▲+133% Added · +156K sh | Q1 2026 | |
| 2 | Quadrature Capital Ltd | $5.3M | 136K | ▲+685% Added · +118K sh | Q1 2026 | |
| 3 | Jump Financial, LLC | $3.0M | 76K | ▲+62% Added · +29K sh | Q1 2026 | |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.3M | 34K | ▲+212% Added · +23K sh | Q1 2026 | |
| 5 | GROUP ONE TRADING LLC | $1.0M | 26K | ▲+98% Added · +13K sh | Q1 2026 | |
| 6 | JANE STREET GROUP, LLC | $922K | 23K | ▲Added Added · +23K sh | Q1 2026 | |
| 7 | MORGAN STANLEY | $838K | 21K | ▲12× Added · +20K sh | Q1 2026 | |
| 8 | Spire Wealth Management | $704K | 18K | ▼−4.8% Reduced · −900 sh | Q1 2026 | |
| 9 | SIMPLEX TRADING, LLC | $596K | 15K | ▲+46% Added · +5K sh | Q1 2026 | |
| 10 | SIG BROKERAGE, LP | $515K | 13K | ▲+191% Added · +9K sh | Q1 2026 | |
| 11 | StoneX Group Inc. | $432K | 11K | ▼−82% Reduced · −49K sh | Q1 2026 | |
| 12 | HighTower Advisors, LLC | $294K | 7K | ▲New +7K sh | Q1 2026 | |
| 13 | XTX Topco Ltd | $233K | 6K | ▲New +6K sh | Q1 2026 | |
| 14 | SIGNATUREFD, LLC | $69K | 2K | —Held | Q1 2026 | |
| 15 | Blue Trust, Inc. | $47K | 1K | —Held | Q1 2026 | |
| 16 | ROYAL BANK OF CANADA | $39K | 1K | ▲+49% Added · +328 sh | Q1 2026 | |
| 17 | WELLS FARGO & COMPANY/MN | $29K | 733 | ▲New +733 sh | Q1 2026 | |
| 18 | Farther Finance Advisors, LLC | $24K | 640 | —Held | Q1 2026 | |
| 19 | ROTHSCHILD INVESTMENT LLC | $16K | 400 | —Held | Q1 2026 | |
| 20 | CITIGROUP INC | $12K | 300 | —Held | Q1 2026 | |
| 21 | UBS Group AG | $10K | 267 | ▼−81% Reduced · −1K sh | Q1 2026 | |
| 22 | Steward Partners Investment Advisory, LLC | $8K | 209 | ▲New +209 sh | Q1 2026 | |
| 23 | HARBOUR INVESTMENTS, INC. | $8K | 200 | ▼−55% Reduced · −240 sh | Q1 2026 | |
| 24 | Larson Financial Group LLC | $2K | 56 | —Held | Q1 2026 | |
| 25 | Root Financial Partners, LLC | $393 | 10 | —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 |
|---|---|---|
| SCOUSDULSHT BLOOMB OIL | 43 funds | $103.7M |
| UCOthis pageULTA BLMBG 2017 | 27 funds | $26.3M |
| VIXYVIX SHT TERM FUT | 25 funds | $22.8M |
| BOIL1EURULTRA BLOOMBERG | 22 funds | $10.0M |
| UVXYULTRA VIX SHORT | 17 funds | $74.8M |
| GLLULTRASHORT GOLD | 15 funds | $14.1M |
| ZSLULTRA SHORT SILV | 12 funds | $12.5M |
| KOLDULSHT BLOOMB GAS | 11 funds | $14.4M |
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 | 11 funds | $2.6B |
| MICRON TECHNOLOGY INCMU | 11 funds | $1.8B |
| MICROSOFT CORPMSFT | 11 funds | $1.8B |
| BROADCOM INCAVGO | 11 funds | $1.5B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 11 funds | $1.5B |
| JPMORGAN CHASE & COJPM | 11 funds | $1.2B |
| TESLA INCTSLA | 11 funds | $1.2B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 11 funds | $848.1M |
| COSTCO WHOLESALE CORPCOST | 11 funds | $790.3M |
| BLACKROCK INCBLK | 11 funds | $778.7M |
| MASTERCARD INC - AMA | 11 funds | $760.4M |
| UNITEDHEALTH GROUP INCUNH | 11 funds | $713.7M |
Ranked by how many of UCO'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 UCO. 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.