SRTY · ProShares UltraPro Short Russell2000 ETF

Alerts for SRTY

$22.50 -0.13 (-0.57%) 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: 1

Total Value: $1,095,168

Total Shares: 51,200

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 1 13F filers · Δ vs Mar 31, 2026

Top Holder

100.0%

+69.8 pts

Top 5

100.0%

+18.1 pts

Top 10

100.0%

+3.3 pts

HHI

10,000

Highly concentrated+8,272

Quarterly Activity

vs Mar 31, 2026

New

0

Increased

1

Decreased

0

Sold Out

17

Unchanged

0

Holder count: -17

Institutional value: -96.3%

Shares held: -93.2%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds	Open
Mega CITADEL ADVISORS LLC	+2,650	51,200

Top Sellers

vs Mar 31, 2026

No qualifying movers this quarter.

Top New Positions

vs Mar 31, 2026

No new positions this quarter.

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)	Open
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	225,683	$8,968,642
Micro Ridgepath Capital Management LLC	140,619	$5,588,199
Micro Sollinda Capital Management LLC	116,566	$4,632,332
Mid Jump Financial, LLC	80,821	$3,211,826
Mega UBS Group AG	39,818	$1,582,367

Filter: New 0 Increased 1 Reduced 0 Sold out 17 Unchanged 0

Showing 2 of 2

All Common Calls Puts

Compact Export CSV

CITADEL ADVISORS LLC SRTY

$844,905

77.15%

39,500

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	39,500	$844,905	100.0%	Defined

CITADEL ADVISORS LLC SRTY

$250,263

22.85%

11,700

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	11,700	$250,263	100.0%	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	136,200	$5,412,588	100.0%	Other

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

Manager	Shares	Value (USD)	% of position	Discretion
Jump Trading Holdings, LLC joint	80,821	$3,211,826	100.0%	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	10,718	$425,933	17.2%	Other
G1 EXECUTION SERVICES, LLC	51,665	$2,053,167	82.8%	Other

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS Switzerland AG	39,818	$1,582,367	100.0%	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	27,100	$1,076,954	100.0%	Other

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	18,400	$731,216	96.3%	Defined
Jane Street Options, LLC	700	$27,818	3.7%	Defined

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	13,508	$536,807	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	9,262	$368,071	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	8,360	$332,226	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	6,400	$254,336	94.1%	Defined
Jane Street Options, LLC	400	$15,896	5.9%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Optiver VOF	3,398	$135,036	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Tower Research Capital Investments LLC	2	$79	0.1%	Other
Latour Trading LLC (Latour)	1,324	$52,615	99.9%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	50	$1,987	100.0%	Defined