% of shares outstanding is not shown for SBIL: 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 SBIL 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 | Simplify Asset Management Inc. | 46,038,77546.0M | $4.6B | — | ADD 5% |
| 2 | McIlrath & Eck, LLC | 17,98517,985 | $2M | — | ADD 247% |
| 3 | JANE STREET GROUP, LLC | 12,08812,088 | $1M | — | TRIM -72% |
| 4 | ABLES, IANNONE, MOORE & ASSOCIATES, INC. | 8,8848,884 | $888,933 | — | — |
| 5 | Wellington Shields & Co., LLC | 2,3452,345 | $234,641 | — | TRIM -53% |
| 6 | ROYAL BANK OF CANADA | 185185 | $19,000 | — | — |
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 |
|---|---|---|---|---|---|---|---|
| Simplify Asset Management Inc. | — | — | — | 33.2M | 43.6M | 46.0M | $4.6B |
| McIlrath & Eck, LLC | — | — | — | — | 5K | 18K | $2M |
| JANE STREET GROUP, LLC | — | — | — | 6K | 43K | 12K | $1M |
| ABLES, IANNONE, MOORE & ASSOCIATES, INC. | — | — | — | — | 9K | 9K | $888,933 |
| Wellington Shields & Co., LLC | — | — | — | 4K | 5K | 2K | $234,641 |
| ROYAL BANK OF CANADA | — | — | — | — | 185 | 185 | $19,000 |
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.
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 6 | 46,080,262 | — | $4.6B |
| 2025-Q4 | 10 | 43,730,708 | — | $4.4B |
| 2025-Q3 | 6 | 33,252,275 | — | $3.3B |
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 | |
|---|---|---|---|
| Simplify Asset Management Inc. | +2,389,735 | $239M | ADD |
| McIlrath & Eck, LLC | +12,798 | $1M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| JANE STREET GROUP, LLC | −30,649 | $3M | TRIM |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | −7,712 | $771,663 | CLOSE |
| CITADEL ADVISORS LLC | −5,791 | $579,447 | CLOSE |
| WEDBUSH SECURITIES INC | −4,666 | $466,880 | CLOSE |
| Wellington Shields & Co., LLC | −2,692 | $269,362 | TRIM |
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).
