Roundhill MSTR WeeklyPay ETF
MSTW
9 hedge funds and large institutions have $17.7M invested in Roundhill MSTR WeeklyPay ETF in 2025 Q4 according to their latest regulatory filings, with 5 funds opening new positions, 4 increasing their positions, reducing their positions, and 1 closing their positions.
400% more first-time investments, than exits
New positions opened: 5 | Existing positions closed: 1
110% more capital invested
Capital invested by funds: $8.41M → $17.7M (+$9.24M)
80% more funds holding
Funds holding: 5 → 9 (+4)
17.05% more ownership
Funds ownership: 12.02% → 29.07% (+17%)
100% less call options, than puts
Call options by funds: $0 | Put options by funds: $343K
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
ETC
Exchange Traded Concepts
Oklahoma City,
Oklahoma
|
+$26.7M |
| 2 |
Jane Street
New York
|
+$1.88M |
| 3 |
Group One Trading
Chicago,
Illinois
|
+$97.8K |
| 4 |
OMC
Old Mission Capital
Chicago,
Illinois
|
+$87.4K |
| 5 |
Simplex Trading
Chicago,
Illinois
|
+$37.6K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CA
CoreCap Advisors
Southfield,
Michigan
|
-$93 |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
ETC
1
Exchange Traded Concepts
Oklahoma City,
Oklahoma
| $16.3M | +$26.7M | +1,414,982 | +567% |
|
|
2
Jane Street
New York
| $978K | +$1.88M | +99,661 | New |
|
|
OMC
3
Old Mission Capital
Chicago,
Illinois
| $235K | +$87.4K | +4,622 | +24% |
|
|
4
Group One Trading
Chicago,
Illinois
| $74.9K | +$97.8K | +5,173 | +210% |
|
|
5
Simplex Trading
Chicago,
Illinois
| $19.5K | +$37.6K | +1,991 | New |
|
6
UBS Group
Zurich,
Switzerland
| $12.3K | +$18.2K | +965 | +329% |
|
7
Belvedere Trading
Chicago,
Illinois
| $1.57K | +$3.02K | +160 | New |
|
|
TRCT
8
Tower Research Capital (TRC)
New York
| $736 | +$1.42K | +75 | New |
|
|
RFP
9
Root Financial Partners
Encinitas,
California
| $157 | +$302 | +16 | New |
|
|
CA
10
CoreCap Advisors
Southfield,
Michigan
| – | -$93 | -3 | Closed |
|
MSTW Hedge Fund Activity: Q4 2025 in Review
9 of the 8,238 institutional investors tracked by Wall St. Rank reported a position in Roundhill MSTR WeeklyPay ETF (MSTW) for Q4 2025, worth a combined $17.7M — up 110% from $8.41M a quarter earlier.
Buyers outnumbered sellers: 5 funds opened new MSTW positions and 1 closed out — a net gain of 4 holders — while 4 added to existing stakes and 0 trimmed.
The largest buyer was Exchange Traded Concepts, adding an estimated $26.7M. The largest seller was CoreCap Advisors, exiting entirely with an estimated $93 sold.
- 9 institutional investors held Roundhill MSTR WeeklyPay ETF (MSTW) as of Q4 2025, up from 5 in Q3 2025.
- Funds reported $17.7M of Roundhill MSTR WeeklyPay ETF stock for Q4 2025, up 110% quarter-over-quarter.
- 5 funds opened new Roundhill MSTR WeeklyPay ETF positions in Q4 2025 and 1 closed out, a net change of +4 holders.
- The largest Roundhill MSTR WeeklyPay ETF buyer in Q4 2025 was Exchange Traded Concepts, an estimated $26.7M added.
- The largest Roundhill MSTR WeeklyPay ETF seller in Q4 2025 was CoreCap Advisors, an estimated $93 sold.
Based on aggregated 13F filings for Q4 2025.