Return Stacked Bonds & Merger Arbitrage ETF
RSBA
7 hedge funds and large institutions have $17.4M invested in Return Stacked Bonds & Merger Arbitrage ETF in 2025 Q4 according to their latest regulatory filings, with 2 funds opening new positions, 3 increasing their positions, 1 reducing their positions, and 2 closing their positions.
200% more repeat investments, than reductions
Existing positions increased: 3 | Existing positions reduced: 1
63% more capital invested
Capital invested by funds: $10.7M → $17.4M (+$6.74M)
0.11% more ownership
Funds ownership: 55.47% → 55.58% (+0.11%)
0% more first-time investments, than exits
New positions opened: 2 | Existing positions closed: 2
13% less funds holding
Funds holding: 8 → 7 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
MCM
MAI Capital Management
Independence,
Ohio
|
+$3.48M |
| 2 |
MG
Marex Group
London,
|
+$3.48M |
| 3 |
WAP
Wealthcare Advisory Partners
West Chester,
Pennsylvania
|
+$914K |
| 4 |
WAM
Worth Asset Management
Dallas,
Texas
|
+$221K |
| 5 |
LWMI
Legacy Wealth Management (Idaho)
Boise,
Idaho
|
+$21.3K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
-$306K |
| 2 |
SPC
Sigma Planning Corp
Ann Arbor,
Michigan
|
-$153K |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$7.24K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
MG
1
Marex Group
London,
| $6.5M | +$3.48M | +161,787 | +108% |
|
|
WAP
2
Wealthcare Advisory Partners
West Chester,
Pennsylvania
| $5.87M | +$914K | +42,466 | +18% |
|
|
MCM
3
MAI Capital Management
Independence,
Ohio
| $3.38M | +$3.48M | +161,909 | New |
|
|
LWMI
4
Legacy Wealth Management (Idaho)
Boise,
Idaho
| $1.18M | +$21.3K | +992 | +2% |
|
|
SPC
5
Sigma Planning Corp
Ann Arbor,
Michigan
| $228K | -$153K | -7,091 | -39% |
|
|
WAM
6
Worth Asset Management
Dallas,
Texas
| $214K | +$221K | +10,270 | New |
|
7
Carson Wealth (CWM LLC)
Omaha,
Nebraska
| $15K | – | – | – |
|
|
8
Citadel Advisors
Miami,
Florida
| – | -$306K | -14,328 | Closed |
|
|
9
UBS Group
Zurich,
Switzerland
| – | -$7.24K | -339 | Closed |
|
RSBA Hedge Fund Activity: Q4 2025 in Review
7 of the 8,228 institutional investors tracked by Wall St. Rank reported a position in Return Stacked Bonds & Merger Arbitrage ETF (RSBA) for Q4 2025, worth a combined $17.4M — up 63% from $10.7M a quarter earlier.
Fund positioning in RSBA was balanced in Q4 2025: 2 funds opened new positions, 2 closed out, 3 added to existing stakes and 1 trimmed.
The largest buyer was MAI Capital Management, opening a new position worth an estimated $3.48M. The largest seller was Citadel Advisors, exiting entirely with an estimated $306K sold.
- 7 institutional investors held Return Stacked Bonds & Merger Arbitrage ETF (RSBA) as of Q4 2025, down from 8 in Q3 2025.
- Funds reported $17.4M of Return Stacked Bonds & Merger Arbitrage ETF stock for Q4 2025, up 63% quarter-over-quarter.
- 2 funds opened new Return Stacked Bonds & Merger Arbitrage ETF positions in Q4 2025 and 2 closed out, a net change of 0 holders.
- The largest Return Stacked Bonds & Merger Arbitrage ETF buyer in Q4 2025 was MAI Capital Management, an estimated $3.48M added.
- The largest Return Stacked Bonds & Merger Arbitrage ETF seller in Q4 2025 was Citadel Advisors, an estimated $306K sold.
Based on aggregated 13F filings for Q4 2025.