QID · ProShares UltraShort QQQ ETF

$14.15 -0.05 (-0.35%) 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: $1,769,630

Total Shares: 130,600

Institutional Ownership Trend

26 quarters

Holder Concentration

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

Top Holder

100.0%

+80.1 pts

Top 5

100.0%

+35.3 pts

Top 10

100.0%

+17.0 pts

HHI

10,000

Highly concentrated+8,931

Quarterly Activity

vs Mar 31, 2026

New

0

Increased

1

Decreased

0

Sold Out

40

Unchanged

0

Holder count: -40

Institutional value: -97.1%

Shares held: -95.1%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds	Open
Mega CITADEL ADVISORS LLC	+45,700	130,600

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
Small Trek Financial, LLC	527,955	$11,963,460
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	467,191	$10,586,548
Micro RHL GROUP, LLC	342,323	$7,757,039
Micro Genesis Financial Group, LLC	223,590	$5,066,549
Mega JANE STREET GROUP, LLC	151,855	$3,441,034

Filter: New 0 Increased 1 Reduced 0 Sold out 40 Unchanged 0

Showing 1 of 1

All Common Calls Puts

Compact Export CSV

CITADEL ADVISORS LLC QID

$1,769,630

100.00%

130,600

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	130,600	$1,769,630	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	315,200	$7,142,432	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	138,700	$3,142,942	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	86,000	$1,948,760	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	7,130	$161,565	9.3%	Defined
UBS Switzerland AG	69,613	$1,577,430	90.5%	Defined
UBS Securities LLC	212	$4,803	0.3%	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	1,787	$40,493	3.2%	Other
Latour Trading LLC (Latour)	53,648	$1,215,663	96.8%	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	40,455	$916,710	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	18,300	$414,678	72.0%	Defined
Jane Street Options, LLC	7,100	$160,886	28.0%	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	13,291	$301,174	100.0%	Other

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

Manager	Shares	Value (USD)	% of position	Discretion
BANK VONTOBEL AG	10,375	$235,097	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Desjardins Securities inc.	4,600	$104,236	100.0%	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	2,500	$56,650	99.9%	Defined
MORGAN STANLEY SMITH BARNEY LLC	2	$45	0.1%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	1,306	$29,593	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
RBC Trust Co (Delaware) Ltd	189	$4,282	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Optiver VOF	189	$4,282	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES INC	24	$543	100.0%	Defined