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SPDR S&P MidCap 400 ETF Trust
MDY

Overview Fund Activity

1,326 hedge funds and large institutions have $14.2B invested in SPDR S&P MidCap 400 ETF Trust in 2025 Q2 according to their latest regulatory filings, with 84 funds opening new positions, 325 increasing their positions, 510 reducing their positions, and 65 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
1,326
Holders Change
-15
Holders Change %
-1.12%
% of All Funds
17.78%
Holding in Top 10
57
Holding in Top 10 Change
-9
Holding in Top 10 Change %
-13.64%
% of All Funds
0.76%
New
84
Increased
325
Reduced
510
Closed
65
Calls
$535M
Puts
$407M
Net Calls
+$128M
Net Calls Change
-$32.6M

Top Buyers

1
Morgan Stanley
Morgan Stanley
New York
+$153M
2
MCM
Moore Capital Management
New York
+$152M
3
Corient Private Wealth
Corient Private Wealth
Florida
+$136M
4
Goldman Sachs
Goldman Sachs
New York
+$134M
5
HF
HRT Financial
New York
+$60M

Top Sellers

1
Citadel Advisors
Citadel Advisors
Florida
-$125M
2
SG Americas Securities
SG Americas Securities
New York
-$58.4M
3
Kayne Anderson Rudnick Investment Management
Kayne Anderson Rudnick Investment Management
California
-$54.1M
4
Millennium Management
Millennium Management
New York
-$53M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
-$48.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
CSPIA
1326
Cary Street Partners Investment Advisory
Virginia
$566 – – –
SGDR
1327
SPX Gestao de Recursos
Brazil
– -$46.3M -86,698 Closed
SILC
1328
Starr Indemnity & Liability Company
New York
– -$36M -67,400 Closed
Retirement Systems of Alabama
1329
Retirement Systems of Alabama
Alabama
– -$24.7M -46,240 Closed
CVSC
1330
C.V. Starr & Co
New York
– -$22.5M -42,100 Closed
WAM
1331
Weiss Asset Management
Massachusetts
– -$21.5M -40,210 Closed
FTA
1332
Financial & Tax Architects
Missouri
– -$9.88M -18,520 Closed
LA
1333
Legacy Advisors
Pennsylvania
– -$9.11M -17,082 Closed
BHCM
1334
Brevan Howard Capital Management
Jersey
– -$6.57M -12,308 Closed
SCM
1335
Shapiro Capital Management
Georgia
– -$6.56M -12,300 Closed
QC
1336
Quadrature Capital
United Kingdom
– -$3.69M -6,911 Closed
PCP
1337
Proficio Capital Partners
Massachusetts
– -$3.56M -6,640 Closed
CAM
1338
CenterStar Asset Management
Illinois
– -$2.66M -4,984 Closed
DS
1339
DRW Securities
Illinois
– -$1.6M -3,000 Closed
Walleye Trading
1340
Walleye Trading
New York
– -$1.43M -2,688 Closed
Marshall Wace
1341
Marshall Wace
United Kingdom
– -$1.33M -2,500 Closed
TSS
1342
Two Sigma Securities
New York
– -$1.32M -2,468 Closed
Macquarie Group
1343
Macquarie Group
Australia
– -$1.2M -2,244 Closed
CWC
1344
Carolinas Wealth Consulting
North Carolina
– -$928K -1,739 Closed
TC
1345
TownSquare Capital
Utah
– -$916K -1,717 Closed
QCG
1346
Quadrant Capital Group
Ohio
– -$896K -1,680 Closed
AA
1347
Ashford Advisors
New York
– -$726K -1,361 Closed
GAA
1348
Global Assets Advisory
Florida
– -$607K -1,200 Closed
PP
1349
Paloma Partners
Connecticut
– -$634K -1,189 Closed
GL
1350
GHE LLC
Tennessee
– -$533K -1,000 Closed
52 53
54
55 56