AB Core Bond ETF
CORB
3 hedge funds and large institutions have $868M invested in AB Core Bond ETF in 2025 Q4 according to their latest regulatory filings, with 3 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.
98.85% more ownership
Funds ownership: 0% → 98.85% (+99%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AllianceBernstein
Nashville,
Tennessee
|
+$870M |
| 2 |
Jane Street
New York
|
+$2.96M |
| 3 |
CAM
Cresset Asset Management
Chicago,
Illinois
|
+$355K |
Top Sellers
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
1
AllianceBernstein
Nashville,
Tennessee
| $865M | +$870M | +28,952,247 | New |
|
|
2
Jane Street
New York
| $2.94M | +$2.96M | +98,582 | New |
|
|
CAM
3
Cresset Asset Management
Chicago,
Illinois
| $355K | +$355K | +11,815 | New |
|
CORB Hedge Fund Activity: Q4 2025 in Review
3 of the 8,224 institutional investors tracked by Wall St. Rank reported a position in AB Core Bond ETF (CORB) for Q4 2025, worth a combined $868M.
Buyers outnumbered sellers: 3 funds opened new CORB positions and 0 closed out — a net gain of 3 holders — while 0 added to existing stakes and 0 trimmed.
The largest buyer was AllianceBernstein, opening a new position worth an estimated $870M.
- 3 institutional investors held AB Core Bond ETF (CORB) as of Q4 2025, up from 0 in Q3 2025.
- Funds reported $868M of AB Core Bond ETF stock for Q4 2025.
- 3 funds opened new AB Core Bond ETF positions in Q4 2025 and 0 closed out, a net change of +3 holders.
- The largest AB Core Bond ETF buyer in Q4 2025 was AllianceBernstein, an estimated $870M added.
Based on aggregated 13F filings for Q4 2025.