Who Owns PROSHARES TR (OILK)? -- Institutional Holders (2026-03-31)

51 institutions reported holding $101.4M of PROSHARES TR (OILK) in SEC 13F filings for 2026-03-31. Largest institutional holders: Harvest Fund Management Co., Ltd ($31.1M), Trek Financial, LLC ($25.6M), NewSquare Capital LLC ($7.8M), CITADEL ADVISORS LLC ($6.8M), Belvedere Trading LLC ($3.6M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1Harvest Fund Management Co., Ltd$31.1M574,511New
2Trek Financial, LLC$25.6M472,285New
3NewSquare Capital LLC$7.8M144,858New
4CITADEL ADVISORS LLC$6.8M125,900New
5Belvedere Trading LLC$3.6M66,279New
6Green Ridge Wealth Planning LLC$3.0M55,160New
7Ethos Financial Group, LLC$2.6M48,473New
8JANE STREET GROUP, LLC$2.0M36,554Added
9Fortis Group Advisors, LLC$1.9M32,318Trimmed
10Encompass More Asset Management$1.9M34,840New
11SUSQUEHANNA INTERNATIONAL GROUP, LLP$1.9M34,633Added
12Merit Financial Group, LLC$1.7M31,989New
13FLAGSHIP HARBOR ADVISORS, LLC$1.6M29,403New
14SIMPLEX TRADING, LLC$1.3M24,906New
15Stratos Wealth Partners, LTD.$1.3M24,395Added
16FLOW TRADERS U.S. LLC$1.2M21,458New
17GUARDIAN WEALTH ADVISORS, LLC / NC$848,12615,677New
18Foundations Investment Advisors, LLC$721,26113,332New
19LPL Financial LLC$686,99112,699Added
20HRT FINANCIAL LP$586,00010,840New
21GROUP ONE TRADING LLC$428,7977,926Added
22Cambridge Investment Research Advisors, Inc.$374,0006,910New
23HighTower Advisors, LLC$334,4176,181New
24Sanctuary Advisors, LLC$333,2026,159New
25Verity Asset Management, Inc.$311,0215,749New

Source: SEC Form 13F filings · as of 2026-03-31