MDY icon

SPDR S&P MidCap 400 ETF Trust

1,347 hedge funds and large institutions have $13.3B invested in SPDR S&P MidCap 400 ETF Trust in 2025 Q1 according to their latest regulatory filings, with 76 funds opening new positions, 367 increasing their positions, 485 reducing their positions, and 94 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more funds holding in top 10

Funds holding in top 10:

less ownership

Funds ownership:

less funds holding

Funds holding:

11% less capital invested

Capital invested by funds: $15B → $13.3B (-$1.7B)

19% less first-time investments, than exits

New positions opened: 76 | Existing positions closed: 94

24% less repeat investments, than reductions

Existing positions increased: 367 | Existing positions reduced: 485

Holders
1,347
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
66
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$468M
Puts
$307M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
801
$576K
802
$575K
803
$574K
804
$573K
805
$573K
806
$573K
807
$569K
808
$563K
809
$560K
810
$557K
811
$554K
812
$554K
813
$554K
814
$553K
815
$551K
816
$548K
817
$547K
818
$546K
819
$546K
820
$541K
821
$541K
822
$538K
823
$537K
824
$533K
825
$533K