iShares MBS ETF
MBB
681 hedge funds and large institutions have $22.3B invested in iShares MBS ETF in 2021 Q3 according to their latest regulatory filings, with 77 funds opening new positions, 306 increasing their positions, 211 reducing their positions, and 60 closing their positions.
45% more repeat investments, than reductions
Existing positions increased: 306 | Existing positions reduced: 211
28% more first-time investments, than exits
New positions opened: 77 | Existing positions closed: 60
1% more funds holding
Funds holding: 672 → 681 (+9)
0.61% less ownership
Funds ownership: 89.57% → 88.96% (-0.61%)
4% less capital invested
Capital invested by funds: $23.1B → $22.3B (-$821M)
9% less funds holding in top 10
Funds holding in top 10: 67 → 61 (-6)
73% less call options, than puts
Call options by funds: $281K | Put options by funds: $1.06M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Bank of America
Charlotte,
North Carolina
|
+$461M |
| 2 |
Envestnet Asset Management
Chicago,
Illinois
|
+$110M |
| 3 |
BlackRock
New York
|
+$76M |
| 4 |
Ameriprise
Minneapolis,
Minnesota
|
+$59.2M |
| 5 |
CI
Conning Inc
Hartford,
Connecticut
|
+$50.4M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$1.01B |
| 2 |
JP Morgan Chase
New York
|
-$146M |
| 3 |
Wells Fargo
San Francisco,
California
|
-$139M |
| 4 |
Barclays
London,
United Kingdom
|
-$102M |
| 5 |
Citadel Advisors
Miami,
Florida
|
-$95.8M |
MBB Hedge Fund Activity: Q3 2021 in Review
681 of the 5,712 institutional investors tracked by Wall St. Rank reported a position in iShares MBS ETF (MBB) for Q3 2021, worth a combined $22.3B — down 3.5% from $23.1B a quarter earlier.
Buyers outnumbered sellers: 77 funds opened new MBB positions and 60 closed out — a net gain of 17 holders — while 306 added to existing stakes and 211 trimmed.
The largest buyer was Bank of America, adding an estimated $461M. The largest seller was Jane Street, cutting an estimated $1.01B.
- 681 institutional investors held iShares MBS ETF (MBB) as of Q3 2021, up from 672 in Q2 2021.
- Funds reported $22.3B of iShares MBS ETF stock for Q3 2021, down 3.5% quarter-over-quarter.
- 77 funds opened new iShares MBS ETF positions in Q3 2021 and 60 closed out, a net change of +17 holders.
- The largest iShares MBS ETF buyer in Q3 2021 was Bank of America, an estimated $461M added.
- The largest iShares MBS ETF seller in Q3 2021 was Jane Street, an estimated $1.01B sold.
Based on aggregated 13F filings for Q3 2021.