Roundhill COST WeeklyPay ETF
COSW
2 hedge funds and large institutions have $7M invested in Roundhill COST WeeklyPay ETF in 2026 Q2 according to their latest regulatory filings, with 0 funds opening new positions, 1 increasing their positions, 1 reducing their positions, and 3 closing their positions.
0% more repeat investments, than reductions
Existing positions increased: 1 | Existing positions reduced: 1
3.76% less ownership
Funds ownership: 63.76% → 60% (-3.8%)
23% less capital invested
Capital invested by funds: $9.13M → $7M (-$2.13M)
60% less funds holding
Funds holding: 5 → 2 (-3)
100% less first-time investments, than exits
New positions opened: 0 | Existing positions closed: 3
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GS
GTS Securities
Miami,
Florida
|
+$86.6K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OMC
Old Mission Capital
Chicago,
Illinois
|
-$571K |
| 2 |
ETC
Exchange Traded Concepts
Oklahoma City,
Oklahoma
|
-$354K |
| 3 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$243K |
| 4 |
Simplex Trading
Chicago,
Illinois
|
-$4.57K |
COSW Hedge Fund Activity: Q2 2026 in Review
2 of the 8,318 institutional investors tracked by Wall St. Rank reported a position in Roundhill COST WeeklyPay ETF (COSW) for Q2 2026, worth a combined $7M — down 23% from $9.13M a quarter earlier.
Sellers outnumbered buyers: 3 funds closed out of COSW and 0 opened new positions — a net loss of 3 holders — while 1 trimmed existing stakes and 1 added.
The largest buyer was GTS Securities, adding an estimated $86.6K. The largest seller was Old Mission Capital, exiting entirely with an estimated $571K sold.
- 2 institutional investors held Roundhill COST WeeklyPay ETF (COSW) as of Q2 2026, down from 5 in Q1 2026.
- Funds reported $7M of Roundhill COST WeeklyPay ETF stock for Q2 2026, down 23% quarter-over-quarter.
- 0 funds opened new Roundhill COST WeeklyPay ETF positions in Q2 2026 and 3 closed out, a net change of -3 holders.
- The largest Roundhill COST WeeklyPay ETF buyer in Q2 2026 was GTS Securities, an estimated $86.6K added.
- The largest Roundhill COST WeeklyPay ETF seller in Q2 2026 was Old Mission Capital, an estimated $571K sold.
Based on aggregated 13F filings for Q2 2026.