Among active 13F managers last quarter, 1 added and none reduced or exited; the largest holder to move was Citadel Advisors LLC (added).
3 tracked 13F filers disclose a position in MSTW as of the latest SEC 13F filings, a combined $127K in reported value. 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.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Citadel Advisors LLC | 31K | $97K | ▲Added Added · +31K sh | Q2 2026 | |
| 2 | Group One Trading LLC | 5K | $17K | ▼−16% Reduced · −1K sh | Q2 2026 | |
| 3 | Simplex Trading, LLC | 2K | $13K | ▲+7.0% Added · +140 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.
Last quarter, 1 fund added to an existing position in MSTW, while none reduced or exited. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Ishares Core S&P 500 ETFIVV | 1 funds | $13.2B |
| Amazon.com IncAMZN | 1 funds | $2.6B |
| Nvidia CorpNVDA | 1 funds | $2.4B |
| Apple IncAAPL | 1 funds | $2.1B |
| Microsoft CorpMSFT | 1 funds | $1.4B |
| Electronic Arts IncEA | 1 funds | $1.2B |
| Warner Bros Discovery IncWBD | 1 funds | $1.2B |
| Eli Lilly & CoLLY | 1 funds | $1.1B |
| Broadcom IncAVGO | 1 funds | $1.1B |
| Alphabet Inc-CL AGOOGL | 1 funds | $1.1B |
| BlackRock IncBLK | 1 funds | $1.1B |
| Advanced Micro DevicesAMD | 1 funds | $929.1M |
Ranked by how many of MSTW's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in MSTW.
| Class | 13F holders | Value held |
|---|---|---|
| DRAMmc | 258 funds | $2.6B |
| QDTEmc | 35 funds | $30.7M |
| XDTEUIT EXCHANGE TRADED | 30 funds | $20.3M |
| OZEMMF Closed and MF Open | 28 funds | $12.3M |
| YBTCETF | 15 funds | $14.9M |
| RDTERUSSELL 2000 0DT | 15 funds | $12.9M |
| MAGYmc | 14 funds | $14.4M |
| MARSSTOK | 13 funds | $5.3M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
No filings captured for this ticker in the live stream yet.
Connected entities for MSTW
This ETF page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/MSTW/capital-change-brief"
Use Arkolith's capital_change_brief for MSTW. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + quarter-over-quarter ownership changes + end-of-day price history + the live filing stream, joined for MSTW. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.