Bank of America
MBB icon

Bank of America’s iShares MBS ETF MBB Stock Holding History

Bank of America’s Portfolio MBB Stock Details MBB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$6.29B Sell
66,207,297
-4,842,763
-7% -$463M 0.46% 38
2025
Q4 		$6.77B Sell
71,050,060
-845,665
-1% -$80.7M 0.49% 34
2025
Q3 		$6.84B Buy
71,895,725
+7,566,099
+12% +$711M 0.46% 36
2025
Q2 		$6.04B Buy
64,329,626
+1,796,449
+3% +$166M 0.44% 38
2025
Q1 		$5.86B Sell
62,533,177
-13,453,088
-18% -$1.24B 0.47% 37
2024
Q4 		$6.97B Buy
75,986,265
+1,826,521
+2% +$170M 0.58% 29
2024
Q3 		$7.11B Buy
74,159,744
+1,367,766
+2% +$129M 0.57% 27
2024
Q2 		$6.68B Buy
72,791,978
+1,246,823
+2% +$114M 0.59% 26
2024
Q1 		$6.61B Sell
71,545,155
-3,779,535
-5% -$350M 0.6% 25
2023
Q4 		$7.09B Buy
75,324,690
+9,398,204
+14% +$843M 0.71% 21
2023
Q3 		$5.85B Buy
65,926,486
+3,938,227
+6% +$360M 0.64% 26
2023
Q2 		$5.78B Buy
61,988,259
+264,765
+0.4% +$24.9M 0.61% 30
2023
Q1 		$5.85B Sell
61,723,494
-10,480,416
-15% -$990M 0.6% 28
2022
Q4 		$6.7B Buy
72,203,910
+5,946,104
+9% +$548M 0.76% 15
2022
Q3 		$6.07B Sell
66,257,806
-503,004
-0.8% -$48.8M 0.73% 17
2022
Q2 		$6.51B Sell
66,760,810
-3,176,508
-5% -$312M 0.74% 19
2022
Q1 		$7.12B Sell
69,937,318
-7,695,551
-10% -$803M 0.69% 22
2021
Q4 		$8.34B Buy
77,632,869
+1,857,794
+2% +$200M 0.81% 17
2021
Q3 		$8.19B Buy
75,775,075
+4,252,343
+6% +$461M 0.85% 17
2021
Q2 		$7.74B Buy
71,522,732
+1,828,791
+3% +$198M 0.8% 19
2021
Q1 		$7.56B Buy
69,693,941
+11,166,017
+19% +$1.22B 0.85% 17
2020
Q4 		$6.45B Buy
58,527,924
+1,837,547
+3% +$202M 0.83% 16
2020
Q3 		$6.26B Buy
56,690,377
+5,266,191
+10% +$582M 0.85% 13
2020
Q2 		$5.69B Sell
51,424,186
-670,950
-1% -$74.3M 0.87% 14
2020
Q1 		$5.75B Sell
52,095,136
-4,407,526
-8% -$480M 1.04% 11
2019
Q4 		$6.11B Buy
56,502,662
+149,940
+0.3% +$16.2M 0.88% 13
2019
Q3 		$6.1B Buy
56,352,722
+335,060
+0.6% +$36.2M 0.91% 13
2019
Q2 		$6.03B Buy
56,017,662
+1,462,053
+3% +$156M 0.91% 12
2019
Q1 		$5.8B Buy
54,555,609
+8,745,396
+19% +$920M 0.9% 12
2018
Q4 		$4.79B Sell
45,810,213
-4,803,871
-9% -$494M 0.84% 14
2018
Q3 		$5.23B Sell
50,614,084
-349,373
-0.7% -$36.3M 0.81% 13
2018
Q2 		$5.31B Buy
50,963,457
+725,503
+1% +$75.3M 0.88% 11
2018
Q1 		$5.26B Buy
50,237,954
+2,443,504
+5% +$256M 0.9% 11
2017
Q4 		$5.09B Buy
47,794,450
+1,826,208
+4% +$195M 0.85% 13
2017
Q3 		$4.92B Buy
45,968,242
+26,371,227
+135% +$2.82B 0.78% 11
2017
Q2 		$2.09B Sell
19,597,015
-6,893,448
-26% -$738M 0.42% 47
2017
Q1 		$2.82B Buy
26,490,463
+4,773,211
+22% +$507M 0.56% 27
2016
Q4 		$2.31B Sell
21,717,252
-7,310,389
-25% -$790M 0.5% 35
2016
Q3 		$3.2B Buy
29,027,641
+2,650,186
+10% +$291M 0.7% 17
2016
Q2 		$2.9B Buy
26,377,455
+1,957,164
+8% +$214M 0.67% 19
2016
Q1 		$2.67B Buy
24,420,291
+1,167,587
+5% +$127M 0.65% 21
2015
Q4 		$2.5B Sell
23,252,704
-897,995
-4% -$97.7M 0.59% 22
2015
Q3 		$2.65B Buy
24,150,699
+14,061,165
+139% +$1.53B 0.66% 14
2015
Q2 		$1.1B Sell
10,089,534
-600,652
-6% -$65.8M 0.36% 46
2015
Q1 		$1.18B Buy
10,690,186
+3,232,218
+43% +$355M 0.4% 40
2014
Q4 		$815M Sell
7,457,968
-3,972,639
-35% -$434M 0.29% 56
2014
Q3 		$1.24B Sell
11,430,607
-537,708
-4% -$58M 0.4% 43
2014
Q2 		$1.3B Buy
11,968,315
+2,313,889
+24% +$248M 0.41% 43
2014
Q1 		$1.02B Buy
9,654,426
+602,701
+7% +$63.9M 0.38% 46
2013
Q4 		$947M Buy
9,051,725
+106,458
+1% +$11.2M 0.34% 54
2013
Q3 		$947M Sell
8,945,267
-321,170
-3% -$33.6M 0.38% 47
2013
Q2 		$975M Buy
+9,266,437
New +$992M 0.41% 39

Other funds holding MBB

JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $374B AUM 17.66% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $377B AUM 19.32% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
TWIM
TIAA Wealth Investment Management New York $13.1B AUM
Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
TCIIS
TIAA-CREF Individual & Institutional Services New York $26B AUM
Truist Financial
Truist Financial Charlotte, North Carolina $83.7B AUM 27.22% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return

Bank of America's MBB Position: Q1 2026 in Review

Bank of America reduced its iShares MBS ETF (MBB) stake by 6.8% in Q1 2026, selling an estimated $463M and leaving 66,207,297 shares worth $6.29B. The position accounts for 0.46% of the portfolio, ranked #38.

Bank of America first reported a position in MBB in Q2 2013 and has held it in 52 quarters since. The position peaked at $8.34B in Q4 2021. 1,021 funds tracked by Wall St. Rank hold MBB as of Q1 2026.

  • Bank of America held 66,207,297 shares of iShares MBS ETF worth $6.29B as of Q1 2026.
  • Bank of America sold 4,842,763 iShares MBS ETF shares in Q1 2026, an estimated $463M.
  • iShares MBS ETF made up 0.46% of Bank of America's portfolio in Q1 2026, its #38 holding.
  • Bank of America first reported a position in iShares MBS ETF in Q2 2013 and has held it in 52 quarters since.
  • Bank of America's iShares MBS ETF position peaked at $8.34B in Q4 2021.
  • 1,021 funds tracked by Wall St. Rank held iShares MBS ETF as of Q1 2026.

Based on Bank of America's 13F filing for Q1 2026, filed 18 May 2026.