REK · ProShares Short Real Estate ETF

$15.82 +0.11 (+0.72%) At close · Sep 4

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.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 5

Total Value: $923,174

Total Shares: 54,723

Institutional Ownership Trend

22 quarters

Holder Concentration

Across 5 13F filers · Δ vs Mar 31, 2025

Top Holder

69.8%

+35.8 pts

Top 5

100.0%

+1.0 pts

Top 10

100.0%

+0.0 pts

HHI

5,332

Highly concentrated+2,591

Quarterly Activity

vs Mar 31, 2025

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -7

Institutional value: -58.6%

Shares held: -58.5%

Top Buyers

vs Mar 31, 2025

Institution	Added	Now Holds	Open
Mega MORGAN STANLEY	+249	382

Top Sellers

vs Mar 31, 2025

Institution	Sold	Now Holds	Open
Mega CITADEL ADVISORS LLC	−6,607	38,200
Mega UBS Group AG	−39	41

Top New Positions

vs Mar 31, 2025

No new positions this quarter.

Top Sold-Out Positions

vs Mar 31, 2025

Institution	Previously Held	Last Value (USD)
Mid IMC-Chicago, LLC	44,620	$754,078
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	24,988	$422,297
Mid SIMPLEX TRADING, LLC	1,070	$18,083
Mid TCTC Holdings, LLC	14	$236
Mega JPMORGAN CHASE & CO	1	$16

Filter: New 0 Increased 1 Reduced 2 Sold out 7 Unchanged 2

Showing 6 of 6

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

CITADEL ADVISORS LLC REK

$339,087

36.73%

20,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	20,100	$339,087	100.0%	Defined

CITADEL ADVISORS LLC REK

$305,347

33.08%

18,100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	18,100	$305,347	100.0%	Defined

JANE STREET GROUP, LLC REK

$168,700

18.27%

10,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Options, LLC	10,000	$168,700	100.0%	Defined

HOLLENCREST CAPITAL MANAGEMENT REK

$102,907

11.15%

6,100

MORGAN STANLEY REK

$6,443

0.70%

382

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO. LLC	340	$5,735	89.0%	Defined
MORGAN STANLEY SMITH BARNEY LLC	42	$708	11.0%	Defined

UBS Group AG REK

$690

0.07%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	1	$16	2.3%	Defined
UBS Securities LLC	40	$674	97.7%	Defined

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	12,500	$211,250	100.0%	Other

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	12,488	$211,047	100.0%	Other

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Turtle Creek Management, LLC	14	$236	100.0%	Sole

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities LLC	1	$16	100.0%	Defined