% of shares outstanding is not shown for CHAU: 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 CHAU 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 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 342,352342,352 | $7M | — | ADD 332% |
| 2 | JANE STREET GROUP, LLC | 279,516279,516 | $6M | — | ADD 514% |
| 3 | CITADEL ADVISORS LLC | 107,469107,469 | $2M | — | ADD 941% |
| 4 | Optiver Holding B.V. | 37,86437,864 | $766,746 | — | NEW |
| 5 | Capital Investment Counsel, Inc | 32,45032,450 | $657,113 | — | — |
| 6 | UBS Group AG | 11,70611,706 | $237,047 | — | — |
| 7 | SBI Securities Co., Ltd. | 2,8512,851 | $57,733 | — | — |
| 8 | Elequin Capital, LP | 2,6672,667 | $54,007 | — | — |
| 9 | SIMPLEX TRADING, LLC | 1,9541,954 | $39,568 | — | TRIM -83% |
| 10 | MORGAN STANLEY | 782782 | $15,856 | — | — |
| 11 | BNP PARIBAS FINANCIAL MARKETS | 253253 | $5,123 | — | — |
| 12 | JPMORGAN CHASE & CO | 108108 | $2,130 | — | ADD 260% |
| 13 | HARBOUR INVESTMENTS, INC. | 6565 | $1,316 | — | 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 |
|---|---|---|---|---|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.1M | — | 220K | 315K | 79K | 342K | $7M |
| JANE STREET GROUP, LLC | 4.7M | 310K | 324K | 176K | 46K | 280K | $6M |
| CITADEL ADVISORS LLC | 274K | 298K | 260K | — | 10K | 107K | $2M |
| Optiver Holding B.V. | — | — | 9K | 52K | — | 38K | $766,746 |
| Capital Investment Counsel, Inc | 25K | 37K | 42K | 32K | 32K | 32K | $657,113 |
| UBS Group AG | 7K | 69K | 35K | 4 | 12K | 12K | $237,047 |
| SBI Securities Co., Ltd. | 15K | 5K | 4K | 3K | 3K | 3K | $57,733 |
| Elequin Capital, LP | — | 4K | 3K | 3K | 3K | 3K | $54,007 |
| SIMPLEX TRADING, LLC | 114K | — | — | 92K | 12K | 2K | $39,568 |
| MORGAN STANLEY | 12K | 15K | 599 | 782 | 781 | 782 | $15,856 |
| BNP PARIBAS FINANCIAL MARKETS | — | — | 36 | 13 | 250 | 253 | $5,123 |
| JPMORGAN CHASE & CO | — | 200 | 287 | — | 30 | 108 | $2,130 |
| HARBOUR INVESTMENTS, INC. | — | — | — | — | — | 65 | $1,316 |
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.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
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 | |
|---|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | +263,029 | $5M | ADD |
| JANE STREET GROUP, LLC | +233,971 | $5M | ADD |
| CITADEL ADVISORS LLC | +97,141 | $2M | ADD |
| Optiver Holding B.V. | +37,864 | $766,746 | OPEN |
| UBS Group AG | +85 | $1,721 | — |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| SIMPLEX TRADING, LLC | −9,781 | $198,065 | TRIM |
| GROUP ONE TRADING LLC | −887 | $17,962 | CLOSE |
| Tower Research Capital LLC (TRC) | −163 | $3,301 | CLOSE |
| Qube Research & Technologies Ltd | −9 | $182 | CLOSE |
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).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 13 | 820,037 | — | $17M |
| 2025-Q4 | 14 | 198,607 | — | $4M |
| 2025-Q3 | 14 | 895,606 | — | $19M |
| 2025-Q2 | 18 | 1,238,259 | — | $18M |
| 2025-Q1 | 14 | 1,151,745 | — | $16M |
| 2024-Q4 | 14 | 6,361,340 | — | $93M |
| 2024-Q3 | 8 | 183,015 | — | $3M |
| 2024-Q2 | 7 | 169,070 | — | $2M |
| 2024-Q1 | 8 | 375,934 | — | $5M |
| 2023-Q4 | 8 | 440,495 | — | $6M |
| 2023-Q3 | 8 | 73,481 | — | $1M |
| 2023-Q2 | 10 | 120,508 | — | $2M |
| 2023-Q1 | 9 | 86,630 | — | $2M |
| 2022-Q4 | 9 | 155,501 | — | $3M |
| 2022-Q3 | 9 | 68,291 | — | $1M |
| 2022-Q2 | 10 | 226,957 | — | $7M |
| 2022-Q1 | 9 | 137,351 | — | $4M |
| 2021-Q4 | 5 | 124,215 | — | $5M |
| 2021-Q3 | 6 | 187,370 | — | $7M |
| 2021-Q2 | 6 | 216,356 | — | $9M |
| 2021-Q1 | 6 | 452,647 | — | $18M |
| 2020-Q4 | 9 | 100,629 | — | $4M |
| 2020-Q3 | 6 | 124,434 | — | $4M |
| 2020-Q2 | 8 | 127,591 | — | $3M |
| 2020-Q1 | 6 | 283,446 | — | $5M |
| 2019-Q4 | 9 | 307,178 | — | $7M |
| 2019-Q3 | 6 | 309,269 | — | $6M |
| 2019-Q2 | 7 | 342,157 | — | $8M |
| 2019-Q1 | 9 | 437,557 | — | $11M |
| 2018-Q4 | 6 | 199,111 | — | $3M |
| 2018-Q3 | 6 | 205,458 | — | $4M |
| 2018-Q2 | 4 | 116,216 | — | $3M |
| 2018-Q1 | 6 | 95,593 | — | $3M |
| 2017-Q4 | 5 | 85,491 | — | $3M |
| 2017-Q3 | 7 | 103,789 | — | $3M |
| 2017-Q2 | 7 | 105,722 | — | $2M |
| 2017-Q1 | 7 | 122,399 | — | $2M |
| 2016-Q4 | 6 | 81,193 | — | $1M |
| 2016-Q3 | 9 | 126,633 | — | $2M |
| 2016-Q2 | 9 | 119,559 | — | $2M |
| 2016-Q1 | 9 | 211,186 | — | $4M |
| 2015-Q4 | 10 | 65,645 | — | $2M |
| 2015-Q3 | 9 | 331,886 | — | $6M |
| 2015-Q2 | 6 | 76,885 | — | $3M |
