SDS · ProShares UltraShort S&P500 ETF

$54.12 +0.46 (+0.86%) 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: 2

Total Value: $15,259,528

Total Shares: 268,323

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 2 13F filers · Δ vs Mar 31, 2026

Top Holder

100.0%

+77.2 pts

Top 5

100.0%

+34.3 pts

Top 10

100.0%

+16.5 pts

HHI

9,998

Highly concentrated+8,819

Quarterly Activity

vs Mar 31, 2026

New

1

Increased

1

Decreased

0

Sold Out

56

Unchanged

0

Holder count: -55

Institutional value: -91.8%

Shares held: -89.1%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds	Open
Mega CITADEL ADVISORS LLC	+1,800	268,300

Top Sellers

vs Mar 31, 2026

No qualifying movers this quarter.

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)	Open
Small TUCKER ASSET MANAGEMENT LLC	23	$1,308

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)	Open
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	562,247	$42,309,086
Small Revere Asset Management, Inc	479,557	$36,086,664
Small Bedell Frazier Investment Counselling, LLC	164,233	$12,358,533
Mid Integrated Advisors Network LLC	150,056	$11,291,714
Small Thomas J. Herzfeld Advisors, Inc.	108,584	$8,170,946

Filter: New 1 Increased 1 Reduced 0 Sold out 56 Unchanged 0

Showing 3 of 3

All Common Calls Puts

Compact Export CSV

CITADEL ADVISORS LLC SDS

$13,507,762

88.52%

237,520

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	237,520	$13,507,762	100.0%	Defined

CITADEL ADVISORS LLC SDS

$1,750,458

11.47%

30,780

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	30,780	$1,750,458	100.0%	Defined

TUCKER ASSET MANAGEMENT LLC SDS

$1,308

0.01%

23

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

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	294,900	$22,191,225	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	185,000	$13,921,250	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	53,821	$4,050,030	65.4%	Other
G1 EXECUTION SERVICES, LLC	28,526	$2,146,581	34.6%	Other

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

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	51,860	$3,902,465	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	34,420	$2,590,105	93.5%	Defined
Jane Street Options, LLC	2,400	$180,600	6.5%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	191	$14,372	0.6%	Defined
UBS Switzerland AG	30,267	$2,277,591	99.4%	Defined

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	17,266	$1,299,266	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	9,380	$705,845	90.4%	Defined
Jane Street Options, LLC	1,000	$75,250	9.6%	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	62	$4,665	1.6%	Other
Latour Trading LLC (Latour)	3,853	$289,938	98.4%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	3,535	$266,008	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
BANK VONTOBEL AG	2,857	$214,989	100.0%	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	2,246	$169,011	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	163	$12,265	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Osaic Advisory Services, LLC	138	$10,384	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Macquarie Bank Limited	20	$1,505	100.0%	Sole

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

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	3	$225	100.0%	Sole