ProShares Short MidCap400
3 hedge funds and large institutions have $133K invested in ProShares Short MidCap400 in 2025 Q4 according to their latest regulatory filings, with funds opening new positions, 2 increasing their positions, 0 reducing their positions, and 0 closing their positions.
73% more capital invested
Capital invested by funds: $76.9K → $133K (+$55.9K)
1.23% more ownership
Funds ownership: 2.23% → 3.47% (+1.2%)
0% more funds holding
Funds holding: 3 → 3 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
TRCT
Tower Research Capital (TRC)
New York
|
+$58K |
| 2 |
Morgan Stanley
New York
|
+$18 |
Top Sellers
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
TRCT
1
Tower Research Capital (TRC)
New York
| $133K | +$58K | +3,256 | +75% |
|
|
2
Morgan Stanley
New York
| $54 | +$18 | +1 | +50% |
|
3
Wells Fargo
San Francisco,
California
| $24 | – | – | – |
|
MYY Hedge Fund Activity: Q4 2025 in Review
3 of the 8,225 institutional investors tracked by Wall St. Rank reported a position in ProShares Short MidCap400 (MYY) for Q4 2025, worth a combined $133K — up 73% from $76.9K a quarter earlier.
Fund positioning in MYY 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 $58K.
- 3 institutional investors held ProShares Short MidCap400 (MYY) as of Q4 2025, unchanged from Q3 2025.
- Funds reported $133K of ProShares Short MidCap400 stock for Q4 2025, up 73% quarter-over-quarter.
- 0 funds opened new ProShares Short MidCap400 positions in Q4 2025 and 0 closed out.
- The largest ProShares Short MidCap400 buyer in Q4 2025 was Tower Research Capital (TRC), an estimated $58K added.
Based on aggregated 13F filings for Q4 2025.