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 MSTX 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/MSTX"
Use Arkolith to show who owns MSTX, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | StoneX Group Inc. | $909K | 46K | ▲New +46K sh | Q1 2026 | |
| 2 | GROUP ONE TRADING LLC | $491K | 25K | ▲+866% Added · +22K sh | Q1 2026 | |
| 3 | FOUNDATIONS INVESTMENT ADVISORS, LLC | $293K | 15K | ▲New +15K sh | Q1 2026 | |
| 4 | Clearstead Advisors, LLC | $607 | 31 | ▼−90% Reduced · −287 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 |
|---|---|---|
| MSTXthis pageExchange Traded Fund | 19 funds | $5.9M |
| SMCXETF | 11 funds | $3.9M |
| NVOXETF | 10 funds | $3.8M |
| IONZDEFIANCE DAILY T | 8 funds | $1.3M |
| SMCZDEFIANCE DAILY | 7 funds | $3.8M |
| CRCOYIELDMAX CRCL OP | 6 funds | $17.3M |
| PLTZETF | 6 funds | $2.5M |
| 88636W528DEFIANCE DAILY T | 6 funds | $1.7M |
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 |
|---|---|---|
| MICROSOFT CORPMSFT | 4 funds | $457.5M |
| AMAZON.COM INCAMZN | 4 funds | $283.3M |
| VANGUARD TOTAL STOCK MKT ETFVTI | 4 funds | $224.7M |
| ALPHABET INC-CL AGOOGL | 4 funds | $210.0M |
| JPMORGAN CHASE & COJPM | 4 funds | $166.0M |
| INVESCO S&P 500 EQUAL WEIGHTRSP | 4 funds | $163.9M |
| ISHARES MSCI USA QUALITY FACQUAL | 4 funds | $153.1M |
| ISHARES MSCI EAFE VALUE ETFEFV | 4 funds | $147.5M |
| ISHARES SEMICONDUCTOR ETFSOXX | 4 funds | $137.5M |
| ELI LILLY & COLLY | 4 funds | $116.0M |
| SPDR GOLD SHARESGLD | 4 funds | $111.5M |
| VANGUARD FTSE DEVELOPED ETFVEA | 4 funds | $110.0M |
Ranked by how many of MSTX'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 MSTX. 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.