Who owns ECO
Which tracked institutional funds hold ECO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ECO company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 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
The tracked-fund tape on ECO is one-sided between 2025-Q4 and 2026-Q1: 57 added or opened and 10 trimmed or exited — on balance accumulating.
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
ECO’s largest tracked holder by dollar value, QVT Financial LP, sizes it at 5.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 5.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in ECO 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 93 tracked filers holding ECO, 75 increased or opened the position and 24 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 ECO 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 22
- ACADIAN ASSET MANAGEMENT LLC$19M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$9M
- Oceanic Investment Management LTD$6M
- Global IMC LLC$5M
- DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD.$5M
- RAYMOND JAMES FINANCIAL INC$4M
Full exits 3
- Counterpoint Mutual Funds LLC$3M
- TWO SIGMA ADVISERS, LP$1M
- Lighthouse Investment Partners, LLC$984K
Largest adds
- Portolan Capital Management, LLC$22M
- QVT Financial LP$21M
- JANE STREET GROUP, LLC$14M
- MARSHALL WACE, LLP$14M
- FIL Ltd$13M
- JPMORGAN CHASE & CO$10M
Largest trims
- Encompass Capital Advisors LLC$8M
- CITADEL ADVISORS LLC$7M
- FEARNLEY ASSET MANAGEMENT AS$6M
- D. E. Shaw & Co., Inc.$2M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$2M
- Quantbot Technologies LP$902K
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 |
|---|---|---|---|---|
| QVT Financial LP | 1,423,997 | $65M | 13.1% | 2026-Q1 |
| FIL Ltd added | 624,184 | $32M | 6.6% | 2026-Q1 |
| Portolan Capital Management, LLC added | 538,860 | $27M | 5.5% | 2026-Q1 |
| MARSHALL WACE, LLP added | 492,018 | $25M | 5.0% | 2026-Q1 |
| Encompass Capital Advisors LLC trimmed | 377,432 | $19M | 3.9% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 367,253 | $19M | 3.8% | 2026-Q1 |
| VR Advisory Services Ltd added | 343,729 | $17M | 3.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 342,431 | $17M | 3.5% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 326,300 | $17M | 3.4% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 310,570 | $15M | 3.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 304,372 | $15M | 3.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 278,305 | $14M | 2.9% | 2026-Q1 |
| BARCLAYS PLC added | 270,001 | $14M | 2.8% | 2026-Q1 |
| BlackRock, Inc. added | 266,552 | $13M | 2.7% | 2026-Q1 |
| FEARNLEY ASSET MANAGEMENT AS added | 236,394 | $12M | 2.5% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC new | 178,133 | $9M | 1.8% | 2026-Q1 |
| Walleye Capital LLC added | 177,417 | $9M | 1.8% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 172,786 | $9M | 1.8% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 158,621 | $8M | 1.6% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 131,145 | $7M | 1.3% | 2026-Q1 |
| Oceanic Investment Management LTD new | 112,371 | $6M | 1.2% | 2026-Q1 |
| Global IMC LLC new | 107,025 | $5M | 1.1% | 2026-Q1 |
| DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD. new | 105,038 | $5M | 1.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 98,962 | $5M | 1.0% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 91,240 | $5M | 0.9% | 2026-Q1 |
| UBS Group AG added | 90,932 | $5M | 0.9% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC new | 83,055 | $4M | 0.9% | 2026-Q1 |
| Informed Momentum Co LLC new | 80,569 | $4M | 0.8% | 2026-Q1 |
| Engineers Gate Manager LP added | 71,465 | $4M | 0.7% | 2026-Q1 |
| Militia Capital Management LLC new | 70,000 | $4M | 0.7% | 2026-Q1 |
| Quadrature Capital Ltd added | 69,246 | $4M | 0.7% | 2026-Q1 |
| Energy Income Partners, LLC added | 69,118 | $3M | 0.7% | 2026-Q1 |
| Invesco Ltd. added | 63,190 | $3M | 0.6% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 63,149 | $3M | 0.6% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 61,984 | $3M | 0.6% | 2026-Q1 |
| MORGAN STANLEY added | 58,858 | $3M | 0.6% | 2026-Q1 |
| Penserra Capital Management LLC new | 58,627 | $3M | 0.6% | 2026-Q1 |
| Thomist Capital Management, LP new | 55,100 | $3M | 0.6% | 2026-Q1 |
| HRT FINANCIAL LP new | 54,704 | $3M | 0.6% | 2026-Q1 |
| Aquatic Capital Management LLC added | 53,607 | $3M | 0.5% | 2026-Q1 |
| Marnell Management LLC added | 53,253 | $3M | 0.5% | 2026-Q1 |
| GRAHAM CAPITAL WEALTH MANAGEMENT, LLC new | 52,595 | $3M | 0.5% | 2026-Q1 |
| Cetera Investment Advisers new | 42,403 | $2M | 0.4% | 2026-Q1 |
| GeoSphere Capital Management, LLC trimmed | 40,000 | $2M | 0.4% | 2026-Q1 |
| XTX Topco Ltd new | 38,447 | $2M | 0.4% | 2026-Q1 |
| CVFG LLC new | 31,665 | $2M | 0.3% | 2026-Q1 |
| CREDIT AGRICOLE S A | 30,000 | $2M | 0.3% | 2026-Q1 |
| Glenorchy Capital Ltd added | 27,706 | $1M | 0.3% | 2026-Q1 |
| CITIGROUP INC added | 27,277 | $1M | 0.3% | 2026-Q1 |
| Massar Capital Management, LP new | 26,320 | $1M | 0.3% | 2026-Q1 |
| Uniplan Investment Counsel, Inc. new | 22,830 | $1M | 0.2% | 2026-Q1 |
| Manatuck Hill Partners, LLC | 20,000 | $1M | 0.2% | 2026-Q1 |
| NAVELLIER & ASSOCIATES INC added | 19,839 | $1M | 0.2% | 2026-Q1 |
| Triumph Capital Management added | 19,800 | $1M | 0.2% | 2026-Q1 |
| Kovack Advisors, Inc. trimmed | 18,646 | $943K | 0.2% | 2026-Q1 |
| SPROTT INC. new | 15,800 | $799K | 0.2% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 15,072 | $778K | 0.2% | 2026-Q1 |
| Numerai GP LLC trimmed | 14,903 | $754K | 0.2% | 2026-Q1 |
| Tidal Investments LLC new | 13,562 | $686K | 0.1% | 2026-Q1 |
| DAVENPORT & Co LLC new | 12,190 | $617K | 0.1% | 2026-Q1 |
| Jain Global LLC trimmed | 10,902 | $552K | 0.1% | 2026-Q1 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 8,414 | $426K | 0.1% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 8,340 | $422K | 0.1% | 2026-Q1 |
| State of Wyoming added | 8,123 | $411K | 0.1% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 8,119 | $411K | 0.1% | 2026-Q1 |
| LPL Financial LLC trimmed | 7,197 | $364K | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC trimmed | 7,073 | $358K | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 6,632 | $336K | 0.1% | 2026-Q1 |
| Cambridge Investment Research Advisors, Inc. new | 6,529 | $331K | 0.1% | 2026-Q1 |
| EPACRIA CAPITAL PARTNERS, LLC new | 5,857 | $296K | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 5,164 | $261K | 0.1% | 2026-Q1 |
| Caitong International Asset Management Co., Ltd added | 5,128 | $259K | 0.1% | 2026-Q1 |
| Magnetar Financial LLC trimmed | 5,089 | $257K | 0.1% | 2026-Q1 |
| Private Advisor Group, LLC new | 5,069 | $256K | 0.1% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC new | 4,972 | $252K | 0.1% | 2026-Q1 |
| GTS SECURITIES LLC new | 4,788 | $242K | 0.0% | 2026-Q1 |
| Dynamic Technology Lab Private Ltd new | 4,753 | $240K | 0.0% | 2026-Q1 |
| MML INVESTORS SERVICES, LLC new | 4,325 | $219K | 0.0% | 2026-Q1 |
| Quantbot Technologies LP trimmed | 4,252 | $215K | 0.0% | 2026-Q1 |
| COMMERCE BANK new | 4,000 | $202K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 2,389 | $121K | 0.0% | 2026-Q1 |
| Counterpoint Mutual Funds LLC new | 100,179 | $3M | 0.7% | 2025-Q4 stale |
| Semmax Financial Advisors Inc. added | 132,545 | $3M | 0.7% | 2025-Q2 stale |
| Marex Group plc new | 77,596 | $2M | 0.3% | 2025-Q1 stale |
| MACQUARIE GROUP LTD | 55,699 | $2M | 0.3% | 2025-Q3 stale |
| Boston Partners added | 71,731 | $2M | 0.3% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP added | 42,710 | $1M | 0.3% | 2025-Q4 stale |
| Militia Capital Partners, LP new | 35,000 | $1M | 0.2% | 2025-Q3 stale |
| Lighthouse Investment Partners, LLC trimmed | 29,075 | $984K | 0.2% | 2025-Q4 stale |
| Schonfeld Strategic Advisors LLC new | 12,697 | $430K | 0.1% | 2025-Q4 stale |
| Jump Financial, LLC trimmed | 10,700 | $362K | 0.1% | 2025-Q4 stale |
| Verition Fund Management LLC added | 8,784 | $297K | 0.1% | 2025-Q4 stale |
| Corigliano Investment Advisers, LLC new | 10,100 | $296K | 0.1% | 2025-Q3 stale |
| GSA CAPITAL PARTNERS LLP trimmed | 12,490 | $276K | 0.1% | 2025-Q1 stale |
| Centiva Capital, LP trimmed | 7,992 | $270K | 0.1% | 2025-Q4 stale |
| PharVision Advisers, LLC new | 7,696 | $260K | 0.1% | 2025-Q4 stale |
| Gotham Asset Management, LLC trimmed | 7,168 | $243K | 0.0% | 2025-Q4 stale |
| S.E.E.D. Planning Group LLC new | 8,000 | $234K | 0.0% | 2025-Q3 stale |
| BBR PARTNERS, LLC | 10,000 | $221K | 0.0% | 2025-Q1 stale |
| Kiker Wealth Management, LLC new | 5,000 | $110K | 0.0% | 2025-Q1 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.