Who owns SPXS (SPXS)
Which tracked institutional funds hold SPXS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SPXS company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
12 tracked funds added or opened SPXS while 9 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
SPXS’s largest tracked holder by dollar value, IMC-Chicago, LLC, sizes it at 0.7% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.7pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SPXS divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 31 tracked filers holding SPXS, 21 increased or opened the position and 19 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in SPXS between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 6
- Hamilton Wealth, LLC$19M
- Revere Asset Management, Inc$9M
- Gainplan LLC$2M
- GROUP ONE TRADING LLC$2M
- SIMPLEX TRADING, LLC$2M
- GOLDMAN SACHS GROUP INC$2M
Full exits 7
- Jump Financial, LLC$4M
- FLOW TRADERS U.S. LLC$1M
- GTS SECURITIES LLC$1M
- Quadrature Capital Ltd$1M
- Virtu Financial LLC$946K
- Bank of New York Mellon Corp$887K
Largest adds
- IMC-Chicago, LLC$34M
- CITADEL ADVISORS LLC$14M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$3M
- XTX Topco Ltd$2M
- UBS Group AG$1M
- JPMORGAN CHASE & CO$320K
Largest trims
- Tower Research Capital LLC (TRC)$754K
- Belvedere Trading LLC$443K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| IMC-Chicago, LLC added | 1,069,475 | $43M | 32.4% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 485,370 | $20M | 14.7% | 2026-Q1 |
| Hamilton Wealth, LLC added | 471,924 | $19M | 14.3% | 2026-Q1 |
| Revere Asset Management, Inc new | 232,731 | $9M | 7.0% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 122,517 | $5M | 3.7% | 2026-Q1 |
| Gainplan LLC new | 55,500 | $2M | 1.7% | 2026-Q1 |
| XTX Topco Ltd added | 54,253 | $2M | 1.6% | 2026-Q1 |
| GROUP ONE TRADING LLC new | 53,644 | $2M | 1.6% | 2026-Q1 |
| SIMPLEX TRADING, LLC new | 46,469 | $2M | 1.4% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC new | 41,790 | $2M | 1.3% | 2026-Q1 |
| UBS Group AG added | 36,488 | $1M | 1.1% | 2026-Q1 |
| SBI Securities Co., Ltd. trimmed | 30,766 | $1M | 0.9% | 2026-Q1 |
| LAZARI CAPITAL MANAGEMENT, INC. | 19,300 | $781K | 0.6% | 2026-Q1 |
| HighTower Advisors, LLC new | 10,789 | $437K | 0.3% | 2026-Q1 |
| MORGAN STANLEY trimmed | 10,023 | $406K | 0.3% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 8,812 | $390K | 0.3% | 2026-Q1 |
| Daytona Street Capital LLC | 38,800 | $381K | 0.3% | 2026-Q1 |
| Belvedere Trading LLC trimmed | 9,129 | $370K | 0.3% | 2026-Q1 |
| Kiker Wealth Management, LLC | 6,000 | $243K | 0.2% | 2026-Q1 |
| MOULTON WEALTH MANAGEMENT, INC new | 22,705 | $225K | 0.2% | 2026-Q1 |
| Guardian Partners Inc. new | 5,001 | $203K | 0.2% | 2026-Q1 |
| Orion Porfolio Solutions, LLC new | 5,000 | $202K | 0.2% | 2026-Q1 |
| Game Plan Financial Advisors, LLC new | 4,750 | $192K | 0.1% | 2026-Q1 |
| ROYAL BANK OF CANADA new | 2,000 | $81K | 0.1% | 2026-Q1 |
| PayPay Securities Corp trimmed | 1,413 | $45K | 0.0% | 2026-Q1 |
| CITIGROUP INC new | 993 | $40K | 0.0% | 2026-Q1 |
| Westend Capital Management, LLC | 313 | $13K | 0.0% | 2026-Q1 |
| OSAIC HOLDINGS, INC. added | 250 | $10K | 0.0% | 2026-Q1 |
| Tower Research Capital LLC (TRC) trimmed | 120 | $5K | 0.0% | 2026-Q1 |
| Cullen/Frost Bankers, Inc. | 1 | $40 | 0.0% | 2026-Q1 |
| Federation des caisses Desjardins du Quebec trimmed | 1 | $40 | 0.0% | 2026-Q1 |
| JANE STREET GROUP, LLC new | 146,521 | $6M | 4.2% | 2025-Q3 stale |
| Jump Financial, LLC trimmed | 111,344 | $4M | 3.0% | 2025-Q4 stale |
| FLOW TRADERS U.S. LLC new | 41,534 | $1M | 1.1% | 2025-Q4 stale |
| GTS SECURITIES LLC added | 36,164 | $1M | 1.0% | 2025-Q4 stale |
| SIGNATUREFD, LLC new | 30,072 | $1M | 0.9% | 2025-Q3 stale |
| Quadrature Capital Ltd new | 29,976 | $1M | 0.8% | 2025-Q4 stale |
| Virtu Financial LLC trimmed | 26,677 | $946K | 0.7% | 2025-Q4 stale |
| Bank of New York Mellon Corp added | 25,001 | $887K | 0.7% | 2025-Q4 stale |
| Massar Capital Management, LP new | 23,056 | $818K | 0.6% | 2025-Q4 stale |
| HRT FINANCIAL LP new | 13,226 | $502K | 0.4% | 2025-Q3 stale |
| Squarepoint Ops LLC new | 11,864 | $421K | 0.3% | 2025-Q4 stale |
| TWO SIGMA SECURITIES, LLC new | 9,531 | $362K | 0.3% | 2025-Q3 stale |
| Corient Private Wealth LLC new | 10,115 | $359K | 0.3% | 2025-Q4 stale |
| UNITED CAPITAL FINANCIAL ADVISORS, LLC new | 8,950 | $340K | 0.3% | 2025-Q3 stale |
| Triton Wealth Management, PLLC new | 7,350 | $259K | 0.2% | 2025-Q3 stale |
| Lido Advisors, LLC | 6,425 | $244K | 0.2% | 2025-Q4 stale |
| Headlands Technologies LLC new | 6,363 | $242K | 0.2% | 2025-Q3 stale |
| Global Retirement Partners, LLC new | 3,014 | $115K | 0.1% | 2025-Q3 stale |
| BTG Pactual Asset Management US LLC new | 5,780 | $93K | 0.1% | 2025-Q3 stale |
| MARK SHEPTOFF FINANCIAL PLANNING, LLC | 4,200 | $92K | 0.1% | 2025-Q4 stale |
| EverSource Wealth Advisors, LLC new | 2,006 | $76K | 0.1% | 2025-Q3 stale |
| MAI Capital Management new | 1,937 | $74K | 0.1% | 2025-Q3 stale |
| Arax Advisory Partners new | 1,134 | $51K | 0.0% | 2025-Q3 stale |
| JFS WEALTH ADVISORS, LLC new | 1,000 | $38K | 0.0% | 2025-Q3 stale |
| WHITTIER TRUST CO OF NEVADA INC new | 233 | $9K | 0.0% | 2025-Q3 stale |
| AllSquare Wealth Management LLC new | 204 | $8K | 0.0% | 2025-Q3 stale |
| Quaker Wealth Management, LLC new | 100 | $4K | 0.0% | 2025-Q3 stale |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 63 | $2K | 0.0% | 2025-Q4 stale |
| TORONTO DOMINION BANK new | 13 | $461 | 0.0% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.