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ProShares UltraShort MidCap400
MZZ

3 hedge funds and large institutions have $278K invested in ProShares UltraShort MidCap400 in 2025 Q4 according to their latest regulatory filings, with funds opening new positions, 2 increasing their positions, 0 reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

42% more capital invested

Capital invested by funds: $196K → $278K (+$81.6K)

9.91% more ownership

Funds ownership: 21% → 30.91% (+9.9%)

0% more funds holding

Funds holding: 3 → 3 (0)

Holders
3
Holders Change
–
Holders Change %
0%
% of All Funds
0%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
–
Increased
2
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
TRCT
Tower Research Capital (TRC)
New York
+$71.2K
2
Susquehanna International Group
Susquehanna International Group
Pennsylvania
+$21K

Top Sellers

No sellers this quarter

MZZ Hedge Fund Activity: Q4 2025 in Review

3 institutional investors reported a position in ProShares UltraShort MidCap400 (MZZ) for Q4 2025, worth a combined $278K — up 42% from $196K a quarter earlier.

Fund positioning in MZZ was balanced in Q4 2025: 0 funds opened new positions, 0 closed out, 2 added to existing stakes and 0 trimmed.

The largest buyer was Tower Research Capital (TRC), adding an estimated $71.2K.

  • 3 institutional investors held ProShares UltraShort MidCap400 (MZZ) as of Q4 2025, unchanged from Q3 2025.
  • Funds reported $278K of ProShares UltraShort MidCap400 stock for Q4 2025, up 42% quarter-over-quarter.
  • 0 funds opened new ProShares UltraShort MidCap400 positions in Q4 2025 and 0 closed out.
  • The largest ProShares UltraShort MidCap400 buyer in Q4 2025 was Tower Research Capital (TRC), an estimated $71.2K added.

Based on aggregated 13F filings for Q4 2025.