% of shares outstanding is not shown for SNXX: this is a fund line, and we hold no cover-page share count for it at any quarter — a fund's shares outstanding move with creations and redemptions rather than with issuance and buybacks, and it is not the SEC cover-page count this percentage is defined against. The figure is withheld rather than computed against a count that does not exist. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for SNXX in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | MORGAN STANLEY | 239,374239,374 | $9M | — | NEW |
| 2 | CITADEL ADVISORS LLC | 118,432118,432 | $4M | — | NEW |
| 3 | MIRAE ASSET SECURITIES (USA) INC. | 105,000105,000 | $4M | — | NEW |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 64,73064,730 | $2M | — | NEW |
| 5 | Jump Financial, LLC | 55,87555,875 | $2M | — | NEW |
| 6 | BARCLAYS PLC | 45,70845,708 | $2M | — | NEW |
| 7 | IMC-Chicago, LLC | 37,67237,672 | $1M | — | NEW |
| 8 | Belvedere Trading LLC | 26,78926,789 | $975,655 | — | NEW |
| 9 | JANE STREET GROUP, LLC | 19,72819,728 | $718,493 | — | NEW |
| 10 | GOLDMAN SACHS GROUP INC | 11,70111,701 | $426,150 | — | NEW |
| 11 | Marex Group plc | 9,0019,001 | $327,816 | — | NEW |
| 12 | FLAGSTAR ADVISORS INC | 7,5057,505 | $273,332 | — | NEW |
| 13 | JPMORGAN CHASE & CO | 5,0005,000 | $149,600 | — | NEW |
| 14 | OSAIC HOLDINGS, INC. | 3,8003,800 | $138,396 | — | NEW |
| 15 | GROUP ONE TRADING LLC | 2,6562,656 | $96,732 | — | NEW |
| 16 | CREATIVE FINANCIAL DESIGNS INC /ADV | 200200 | $7,284 | — | NEW |
| 17 | Tower Research Capital LLC (TRC) | 100100 | $3,642 | — | NEW |
| 18 | HOLLENCREST CAPITAL MANAGEMENT | 1010 | $364 | — | NEW |
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| MORGAN STANLEY | — | — | — | — | — | 239K | $9M |
| CITADEL ADVISORS LLC | — | — | — | — | — | 118K | $4M |
| MIRAE ASSET SECURITIES (USA) INC. | — | — | — | — | — | 105K | $4M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | — | — | — | — | — | 65K | $2M |
| Jump Financial, LLC | — | — | — | — | — | 56K | $2M |
| BARCLAYS PLC | — | — | — | — | — | 46K | $2M |
| IMC-Chicago, LLC | — | — | — | — | — | 38K | $1M |
| Belvedere Trading LLC | — | — | — | — | — | 27K | $975,655 |
| JANE STREET GROUP, LLC | — | — | — | — | — | 20K | $718,493 |
| GOLDMAN SACHS GROUP INC | — | — | — | — | — | 12K | $426,150 |
| Marex Group plc | — | — | — | — | — | 9K | $327,816 |
| FLAGSTAR ADVISORS INC | — | — | — | — | — | 8K | $273,332 |
| JPMORGAN CHASE & CO | — | — | — | — | — | 5K | $149,600 |
| OSAIC HOLDINGS, INC. | — | — | — | — | — | 4K | $138,396 |
| GROUP ONE TRADING LLC | — | — | — | — | — | 3K | $96,732 |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| MORGAN STANLEY | +239,374 | $1M | OPEN |
| CITADEL ADVISORS LLC | +118,432 | $539,162 | OPEN |
| MIRAE ASSET SECURITIES (USA) INC. | +105,000 | $478,013 | OPEN |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | +64,730 | $294,683 | OPEN |
| Jump Financial, LLC | +55,875 | $254,371 | OPEN |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| No filer reduced its position this quarter. | |||
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
