9 tracked 13F filers disclose a position in IONZ as of the latest SEC 13F filings, a combined $2.9M 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 | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | StoneX Group Inc. | $1.7M | 655K | ▲59× Added · +644K sh | Q2 2026 | |
| 2 | TWO SIGMA SECURITIES, LLC | $149K | 58K | ▲New +58K sh | Q2 2026 | |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $807K | 32K | ▲New +32K sh | Q1 2026 | |
| 4 | Optiver Holding B.V. | $216K | 9K | ▼−59% Reduced · −13K sh | Q1 2026 | |
| 5 | UBS Group AG | $21K | 859 | ▼−2.3% Reduced · −20 sh | Q1 2026 | |
| 6 | GROUP ONE TRADING LLC | $5K | 219 | ▲New +219 sh | Q1 2026 | |
| 7 | OSAIC HOLDINGS, INC. | $1K | 50 | —Held | Q1 2026 | |
| 8 | SIMPLEX TRADING, LLC | $174 | 7 | ▼−97% Reduced · −193 sh | Q1 2026 | |
| 9 | CITIGROUP INC | $25 | 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.
Last quarter, 1 fund opened a new position in IONZ and 1 added to an existing one, while 0 reduced and 0 exited entirely — 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 | Combined value |
|---|---|---|
| VANGUARD S&P 500 ETFVOO | 2 funds | $158.2M |
| ISHARES CORE S&P 500 ETFIVV | 2 funds | $129.9M |
| ISHARES RUSSELL 1000 VALUE EIWD | 2 funds | $88.8M |
| INVESCO QQQ TRUST SERIES 1QQQ | 2 funds | $50.3M |
| NVIDIA CORPNVDA | 2 funds | $44.6M |
| ISHARES RUSSELL 1000 GROWTHIWF | 2 funds | $40.7M |
| INVESCO NASDAQ 100 ETFQQQM | 2 funds | $40.7M |
| SS SPDR S&P 500 ETF TRUST-USSPY | 2 funds | $40.1M |
| VANGUARD SMALL-CAP ETFVB | 2 funds | $38.3M |
| INVESCO S&P 500 EQUAL WEIGHTRSP | 2 funds | $37.8M |
| DIREX DAIL SEMI BU 3X ET-USDSOXL | 2 funds | $27.0M |
| APPLIED MATERIALS INCAMAT | 2 funds | $24.3M |
Ranked by how many of IONZ's institutional holders also hold each name, a cross-fund conviction signal.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
| Class | 13F holders | Value held |
|---|---|---|
| MSTXExchange Traded Fund | 23 funds | $7.6M |
| SMCXETF | 13 funds | $4.5M |
| NVOXETF | 10 funds | $3.9M |
| IONZthis pageDEFIANCE DAILY T | 9 funds | $2.9M |
| 88636W619DEFIANCE DAILY T | 9 funds | $1.6M |
| ORCXETF | 8 funds | $8.1M |
| SMCZDEFIANCE DAILY | 8 funds | $4.2M |
| PLTZmc | 6 funds | $2.2M |
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 IONZ
This stock 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/IONZ/capital-change-brief"
Use Arkolith's capital_change_brief for IONZ. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for IONZ. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.