SOBO · South Bow Corp · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 306 13F filersWho Holds SOBO
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 304 filers, like-for-like change -2.9%; actively managed books -4.4%; index-like books +9.0%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 31.2% | 156 | +5.7% |
| Exempt adviser | 0.2% | 2 | -86.7% |
| Adviser | 6.1% | 9 | -64.2% |
| Bank | 20.7% | 17 | -7.5% |
| Insurer | 0.0% | 1 | -11.7% |
| Broker-dealer | 0.0% | 2 | +8.3% |
| Benefit plan | 0.1% | 1 | -5.8% |
| Non-US | 1.3% | 10 | -74.7% |
| Holding company | 20.2% | 8 | +103.3% |
| Unknown | 20.3% | 98 | +5.0% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 13.0% | 23 | +9.0% |
| Systematic-like | 2.8% | 22 | +27.6% |
| Concentrated | 3.2% | 50 | -28.4% |
| Diversified active | 81.1% | 209 | -4.0% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 72.9% | 185 | -5.5% |
| Medium turnover | 15.1% | 60 | +10.7% |
| High turnover | 3.6% | 34 | -8.9% |
| Unknown | 8.3% | 25 | +2.7% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 8.0% | 36 | +2.7% |
| Medium horizon | 3.0% | 49 | -29.2% |
| Long horizon | 86.4% | 201 | -2.4% |
| Unknown | 2.7% | 18 | +6.6% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 1.6% | 91 | -47.1% |
| $1B to $10B | 5.1% | 82 | 0.0% |
| $10B to $100B | 19.9% | 68 | +8.2% |
| $100B or more | 73.5% | 63 | -4.1% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 0.5% | 93 | -6.6% |
| Pooled investment vehicles | 4.9% | 22 | +46.5% |
| Registered funds and BDCs | 15.9% | 21 | -1.2% |
| Insurance companies | 0.0% | 1 | 0.0% |
| Governments and sovereign funds | 0.2% | 2 | +4352.8% |
| Other investment advisers | 0.0% | 3 | +22.0% |
| Other | 0.5% | 3 | -6.9% |
| Diversified | 9.3% | 11 | +2.6% |
| Pension and profit sharing plans | 0.0% | 0 | — |
| Charitable organizations | 0.0% | 0 | — |
| Unknown | 68.8% | 148 | -6.4% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 12.5% | 32 | -0.3% |
| Private equity funds | 0.0% | 5 | -52.0% |
| Venture capital funds | 0.0% | 2 | 0.0% |
| Real estate funds | 0.0% | 3 | -36.9% |
| Liquidity funds | 0.3% | 1 | +11.6% |
| Securitized asset funds | 0.0% | 1 | 0.0% |
| Other private funds | 9.4% | 12 | +23.1% |
| Mixed private funds | 0.0% | 2 | -0.3% |
| Private funds, type not stated | 0.1% | 4 | -90.3% |
| No private funds | 9.0% | 96 | +1.8% |
| Unknown | 68.6% | 146 | -4.9% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 60.6% | 230 | +2.0% |
| Outside the US | 39.4% | 74 | -9.7% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 4 holders with no observed 2026-03-31 13F and 3 holders with no observed 2026-06-30 13F.
Conviction and Crowding
304 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $598,378 (1 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 91.8% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies SOBO's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | TRP Tc Energy Corp | 33 |
| 2 | PBA Pembina Pipeline Corp | 21 |
| 3 | BCE Bce Inc | 13 |
| 4 | TU Telus Corp | 11 |
| 5 | KNTK Kinetik Holdings Inc. | 10 |
| 6 | FTS Fortis Inc. | 12 |
| 7 | CNQ CANADIAN NATURAL RESOURCES Ltd | 21 |
| 8 | RCI Rogers Communications Inc | 10 |
| 9 | CVE Cenovus Energy Inc. | 14 |
| 10 | BEP Brookfield Renewable Partners L.P. | 9 |
Shareholder Targets
13F filers that own its peers but not SOBO, quarter ended Jun 30, 2026Found through its holder-overlap peers: TRP, PBA, BCE, TU, KNTK, FTS, CNQ, RCI, CVE, BEP, SUNC, TFII, BIP, CM, BNS, OTEX, ENB, EMA, SU, HESM. 2,071 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | Capital Research Global Investors Adviser, Diversified active | $8,952,794,739 3 held | CNQ, TRP, CVE |
| 2 | GQG Partners LLC Registered adviser, Diversified active | $4,315,956,544 5 held | ENB, TRP, CVE |
| 3 | ACADIAN ASSET MANAGEMENT LLC Unknown, Diversified active | $3,295,212,180 14 held | BNS, CM, SU |
| 4 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US, Diversified active | $2,871,388,918 16 held | CNQ, BNS, CM |
| 5 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser, Diversified active | $2,808,430,773 9 held | SU, CNQ, RCI |
| 6 | Caisse de depot et placement du Quebec Unknown, Diversified active | $2,324,130,250 7 held | TFII, BCE, TRP |
| 7 | Dodge & Cox Registered adviser, Diversified active | $1,695,433,510 2 held | SU, TRP |
| 8 | Elliott Investment Management L.P. Registered adviser, Concentrated | $1,581,090,720 1 held | SU |
| 9 | Public Sector Pension Investment Board Non-US, Diversified active | $1,391,979,723 18 held | CM, BNS, ENB |
| 10 | MUFG SECURITIES (CANADA), LTD. Unknown, Diversified active | $1,355,464,755 15 held | TRP, CNQ, ENB |
Fund Ownership of SOBO by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 5.87% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.41% | 845,015 |
| Index ETFs | 5.47% | 11,405,205 |
| Active ETFs | 1.11% | 2,315,440 |
| Active funds | 12.10% | 25,233,989 |
| Unclassified | 0.96% | 2,004,715 |
| All registered funds | 20.04% | 41,804,364 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega FMR LLC Holding company | $771,571,728 | 16.83% | 21,894,771 | Shares | 2026-08-13 | |
| Mega ROYAL BANK OF CANADA Bank | $513,388,860 | 11.20% | 14,568,356 | Shares | 2026-08-14 | |
| Mega Clearbridge Investments, LLC Registered adviser | $312,054,004 | 6.81% | 8,855,108 | Shares | 2026-08-13 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $213,152,699 | 4.65% | 6,048,601 | Shares | 2026-08-13 | |
| Mega BANK OF MONTREAL /CAN/ Bank | $195,748,470 | 4.27% | 5,554,724 | Shares | 2026-08-12 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $184,819,386 | 4.03% | 5,244,591 | Shares | 2026-08-14 | |
| Large THORNBURG INVESTMENT MANAGEMENT INC Adviser | $131,139,739 | 2.86% | 3,721,332 | Shares | 2026-08-13 | |
| Large CIBC WORLD MARKET INC. | $119,953,506 | 2.62% | 3,403,902 | Shares | 2026-08-13 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $107,235,917 | 2.34% | 3,043,017 | Shares | 2026-08-11 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $97,965,191 | 2.14% | 2,779,943 | Shares | 2026-08-13 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $97,176,411 | 2.12% | 2,757,560 | Shares | 2026-08-14 | |
| Large MACKENZIE FINANCIAL CORP Registered adviser | $89,353,592 | 1.95% | 2,535,573 | Shares | 2026-08-13 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $76,036,396 | 1.66% | 2,157,673 | Shares | 2026-08-14 | |
| Mega AMERICAN CENTURY COMPANIES INC | $75,134,428 | 1.64% | 2,132,078 | Shares | 2026-08-12 | |
| Large TD Waterhouse Canada Inc. | $65,549,759 | 1.43% | 1,978,562 | Shares | 2026-10-16 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $64,986,929 | 1.42% | 1,844,124 | Shares | 2026-08-13 | |
| Mega Legal & General Group Plc | $62,895,998 | 1.37% | 1,784,790 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $62,794,965 | 1.37% | 1,781,923 | Shares | 2026-08-14 | |
| Large SCOTIA CAPITAL INC. | $61,792,459 | 1.35% | 1,753,475 | Shares | 2026-08-11 | |
| Mega TD Asset Management Inc | $58,085,351 | 1.27% | 1,648,279 | Shares | 2026-08-04 | |
| Mega MORGAN STANLEY Holding company | $57,310,772 | 1.25% | 1,626,299 | Shares | 2026-08-13 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $49,530,736 | 1.08% | 1,405,526 | Shares | 2026-08-13 | |
| Mega Invesco Ltd. Adviser | $45,424,638 | 0.99% | 1,289,008 | Shares | 2026-08-14 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $43,096,476 | 0.94% | 1,222,942 | Shares | 2026-08-14 | |
| Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE | $41,246,728 | 0.90% | 1,170,452 | Shares | 2026-09-09 | |
| Mid Recurrent Investment Advisors LLC Registered adviser | $40,833,927 | 0.89% | 1,158,738 | Shares | 2026-08-14 | |
| Mega BARCLAYS PLC Bank | $39,801,958 | 0.87% | 1,129,454 | Shares | 2026-08-14 | |
| Mega D. E. Shaw & Co., Inc. | $39,715,691 | 0.87% | 1,127,006 | Shares | 2026-08-14 | |
| Mid INTACT INVESTMENT MANAGEMENT INC. | $35,798,906 | 0.78% | 1,015,860 | Shares | 2026-07-20 | |
| Large WESTWOOD HOLDINGS GROUP INC Adviser | $35,402,738 | 0.77% | 1,004,618 | Shares | 2026-08-14 | |
| Large TORONTO DOMINION BANK Bank | $35,232,879 | 0.77% | 999,798 | Shares | 2026-08-14 | |
| Small PORTLAND INVESTMENT COUNSEL INC. | $33,542,277 | 0.73% | 951,824 | Shares | 2026-08-13 | |
| Mid TORTOISE CAPITAL ADVISORS, L.L.C. Registered adviser | $33,250,772 | 0.73% | 943,552 | Shares | 2026-08-14 | |
| Mid CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT Registered adviser | $30,147,820 | 0.66% | 855,500 | Shares | 2026-07-28 | |
| Mega Capital International Investors Adviser | $30,111,099 | 0.66% | 854,458 | Shares | 2026-08-12 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $29,931,657 | 0.65% | 849,366 | Shares | 2026-08-12 | |
| Large BROOKFIELD Corp /ON/ | $29,385,614 | 0.64% | 833,871 | Shares | 2026-08-14 | |
| Mega NORGES BANK Non-US | $26,762,841 | 0.58% | 759,445 | Shares | 2026-08-12 | |
| Mega Boston Partners Registered adviser | $26,568,703 | 0.58% | 753,936 | Shares | 2026-08-04 | |
| Large Blackstone Inc. Adviser | $23,486,790 | 0.51% | 666,481 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $19,060,787 | 0.42% | 540,885 | Shares | 2026-08-14 | |
| Mega NATIONAL BANK OF CANADA /FI/ Bank | $18,892,163 | 0.41% | 536,100 | Shares | 2026-08-10 | |
| Mid MILLER HOWARD INVESTMENTS INC /NY Registered adviser | $17,512,024 | 0.38% | 496,936 | Shares | 2026-07-31 | |
| Mega BlackRock, Inc. Holding company | $17,149,226 | 0.37% | 486,641 | Shares | 2026-08-07 | |
| Mega JPMORGAN CHASE & CO Bank | $15,605,573 | 0.34% | 442,837 | Shares | 2026-08-12 | |
| Mega Swiss National Bank | $14,819,124 | 0.32% | 420,520 | Shares | 2026-08-11 | |
| Large CIBC Asset Management Inc Registered adviser | $13,377,667 | 0.29% | 379,616 | Shares | 2026-08-03 | |
| Small Heathbridge Capital Management Ltd. | $11,911,120 | 0.26% | 338,000 | Shares | 2026-07-28 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $11,222,495 | 0.24% | 318,459 | Shares | 2026-09-02 | |
| Mega JANE STREET GROUP, LLC | $10,751,864 | 0.23% | 305,104 | Shares | 2026-08-14 | |
| Large Federation des caisses Desjardins du Quebec | $10,538,662 | 0.23% | 299,054 | Shares | 2026-08-14 | |
| Mega FIL Ltd Non-US | $10,347,415 | 0.23% | 293,627 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $9,284,611 | 0.20% | 263,468 | Shares | 2026-08-13 | |
| Large BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp | $9,057,420 | 0.20% | 257,021 | Shares | 2026-08-13 | |
| Mid HITE Hedge Asset Management LLC Registered adviser | $8,992,684 | 0.20% | 255,184 | Shares | 2026-08-14 | |
| Large BANK OF NOVA SCOTIA Bank | $8,299,407 | 0.18% | 235,511 | Shares | 2026-08-12 | |
| Mid Maryland State Retirement & Pension System | $7,923,714 | 0.17% | 224,850 | Shares | 2026-07-30 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $7,767,565 | 0.17% | 220,419 | Shares | 2026-08-14 | |
| Large Alberta Investment Management Corp Non-US | $7,500,869 | 0.16% | 212,851 | Shares | 2026-08-06 | |
| Large Trexquant Investment LP Registered adviser | $7,227,089 | 0.16% | 205,082 | Shares | 2026-08-14 | |
| Large EXCHANGE TRADED CONCEPTS, LLC Registered adviser | $7,223,706 | 0.16% | 204,986 | Shares | 2026-08-11 | |
| Large PEAK6 LLC Broker-dealer | $7,048,000 | 0.15% | 200,000 | Call | 2026-08-13 | |
| Large Treasurer of the State of North Carolina | $6,912,995 | 0.15% | 196,169 | Shares | 2026-08-14 | |
| Mid Ruffer LLP Registered adviser | $6,340,380 | 0.14% | 179,920 | Shares | 2026-07-30 | |
| Mega VANGUARD ASSET MANAGEMENT, Ltd | $6,299,467 | 0.14% | 178,759 | Shares | 2026-08-13 | |
| Mid Purpose Unlimited Inc. | $6,265,530 | 0.14% | 177,796 | Shares | 2026-08-13 | |
| Mid Ninepoint Partners LP | $6,167,000 | 0.13% | 175,000 | Shares | 2026-08-11 | |
| Small Columbus Macro, LLC Registered adviser | $6,099,961 | 0.13% | 184,122 | Shares | 2026-10-14 | |
| Small VIEWPOINT INVESTMENT PARTNERS CORP | $5,621,555 | 0.12% | 159,522 | Shares | 2026-07-16 | |
| Large Vanguard Investments Australia, Ltd. | $5,613,485 | 0.12% | 159,293 | Shares | 2026-08-13 | |
| Mega VAN ECK ASSOCIATES CORP Registered adviser | $5,580,253 | 0.12% | 158,350 | Shares | 2026-08-14 | |
| Mega FRANKLIN RESOURCES INC Adviser | $5,447,996 | 0.12% | 154,597 | Shares | 2026-08-13 | |
| Mega CANADA PENSION PLAN INVESTMENT BOARD Non-US | $5,441,056 | 0.12% | 154,400 | Shares | 2026-08-14 | |
| Mid SIG North Trading, ULC | $5,412,864 | 0.12% | 153,600 | Call | 2026-08-14 | |
| Mega Nuveen, LLC | $5,330,754 | 0.12% | 151,270 | Shares | 2026-08-11 | |
| Mid BCV Asset Management Inc. | $4,987,411 | 0.11% | 141,527 | Shares | 2026-08-10 | |
| Large HRT FINANCIAL LP | $4,959,466 | 0.11% | 140,734 | Shares | 2026-08-14 | |
| Large TCW GROUP INC Holding company | $4,514,244 | 0.10% | 128,100 | Shares | 2026-08-03 | |
| Mid Moors & Cabot, Inc. Registered adviser | $4,469,665 | 0.10% | 126,835 | Shares | 2026-08-10 | |
| Large Man Group plc | $4,395,344 | 0.10% | 124,726 | Shares | 2026-08-14 | |
| Small Triasima Portfolio Management inc. Registered adviser | $4,179,680 | 0.09% | 126,160 | Shares | 2026-10-15 | |
| Large 1832 Asset Management L.P. Non-US | $4,097,742 | 0.09% | 116,281 | Shares | 2026-08-13 | |
| Mid Catalyst Capital Advisors LLC Registered adviser | $4,039,525 | 0.09% | 114,629 | Shares | 2026-07-24 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $3,941,347 | 0.09% | 111,843 | Shares | 2026-08-14 | |
| Large TORONTO DOMINION BANK Bank | $3,816,492 | 0.08% | 108,300 | Call | 2026-08-14 | |
| Mid Twin Tree Management, LP Registered adviser | $3,791,824 | 0.08% | 107,600 | Call | 2026-08-12 | |
| Mega Capital World Investors Adviser | $3,715,212 | 0.08% | 105,426 | Shares | 2026-08-12 | |
| Mid XTX Topco Ltd | $3,459,440 | 0.08% | 98,168 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $3,281,512 | 0.07% | 93,119 | Shares | 2026-08-13 | |
| Large &PARTNERS | $3,233,129 | 0.07% | 91,746 | Shares | 2026-08-14 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $3,140,483 | 0.07% | 89,117 | Shares | 2026-09-23 | |
| Small Ausbil Investment Management Ltd Registered adviser | $3,073,503 | 0.07% | 92,771 | Shares | 2026-10-08 | |
| Mega D. E. Shaw & Co., Inc. | $2,819,200 | 0.06% | 80,000 | Put | 2026-08-14 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $2,702,203 | 0.06% | 76,680 | Shares | 2026-08-13 | |
| Mega JANE STREET GROUP, LLC | $2,607,760 | 0.06% | 74,000 | Call | 2026-08-14 | |
| Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Benefit plan | $2,603,073 | 0.06% | 73,867 | Shares | 2026-08-17 | |
| Large Schonfeld Strategic Advisors LLC Registered adviser | $2,514,937 | 0.05% | 71,366 | Shares | 2026-08-14 | |
| Mega Russell Investments Group, Ltd. | $2,512,785 | 0.05% | 71,305 | Shares | 2026-08-06 | |
| Large COMMONWEALTH EQUITY SERVICES, LLC Registered adviser | $2,501,793 | 0.05% | 70,993 | Shares | 2026-07-29 | |
| Mega Amundi Holding company | $2,498,093 | 0.05% | 70,888 | Shares | 2026-08-11 |
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