SXL
MBB icon

Summit X LLC’s iShares MBS ETF MBB Stock Holding History

Summit X LLC’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
2025
Q3 		– Sell
-36,027
Closed -$3.38M – 148
2025
Q2 		$3.38M Sell
36,027
-25,156
-41% -$2.33M 0.63% 35
2025
Q1 		$5.74M Sell
61,183
-8,618
-12% -$797K 1.21% 18
2024
Q4 		$6.4M Hold
69,801
– – 1.42% 18
2024
Q3 		$6.41M Sell
69,801
-2,456
-3% -$232K 1.56% 16
2024
Q2 		$6.64M Buy
72,257
+1,799
+3% +$164K 1.49% 16
2024
Q1 		$6.51M Sell
70,458
-2,336
-3% -$216K 1.67% 16
2023
Q4 		$6.86M Buy
72,794
+814
+1% +$73K 1.95% 10
2023
Q3 		$6.39M Sell
71,980
-16,720
-19% -$1.53M 2.03% 9
2023
Q2 		$8.27M Buy
88,700
+2,437
+3% +$229K 2.01% 8
2023
Q1 		$8.17M Buy
86,263
+82,472
+2,175% +$7.79M 2.11% 7
2022
Q4 		$370K Sell
3,791
-4,156
-52% -$383K 0.11% 185
2022
Q3 		$720K Buy
7,947
+4,156
+110% +$403K 0.21% 105
2022
Q2 		$366K Buy
3,791
+53
+1% +$5.2K 0.11% 188
2022
Q1 		$386K Sell
3,738
-26
-0.7% -$2.71K 0.09% 190
2021
Q4 		$402K Buy
3,764
+18
+0.5% +$1.94K 0.09% 194
2021
Q3 		$403K Buy
3,746
+1,455
+64% +$158K 0.1% 195
2021
Q2 		$250K Sell
2,291
-598
-21% -$64.8K 0.06% 232
2021
Q1 		$314K Sell
2,889
-12,878
-82% -$1.41M 0.09% 215
2020
Q4 		$1.74M Buy
+15,767
New +$1.74M 0.51% 45
2020
Q2 		– Sell
-13,868
Closed -$1.53M – 228
2020
Q1 		$1.53M Sell
13,868
-12,647
-48% -$1.38M 0.71% 44
2019
Q4 		$2.88M Buy
26,515
+2,143
+9% +$232K 1.07% 21
2019
Q3 		$2.66M Sell
24,372
-4,248
-15% -$458K 1.07% 19
2019
Q2 		$3.11M Buy
28,620
+12,293
+75% +$1.31M 1.27% 16
2019
Q1 		$1.74M Buy
16,327
+15,930
+4,013% +$1.68M 0.74% 38
2018
Q4 		$754K Buy
+397
New +$40.8K 0.43% 59

Other funds holding MBB

Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $424B AUM 22.96% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return
TIAA Trust, National Association
TIAA Trust, National Association Charlotte, North Carolina $1.69B AUM 19.12% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $521B AUM 51.41% 1-Year Est. Return
RH
RenaissanceRe Holdings Pembroke, Bermuda $421M AUM 4.08% 1-Year Est. Return

Summit X LLC's MBB Position: Q3 2025 in Review

Summit X LLC sold out of iShares MBS ETF (MBB) in Q3 2025, closing a stake of 36,027 shares — an estimated $3.38M sold.

Summit X LLC first reported a position in MBB in Q4 2018 and held it in 25 quarters. The position peaked at $8.27M in Q2 2023. 933 funds tracked by Wall St. Rank hold MBB as of Q3 2025.

  • Summit X LLC reported no remaining iShares MBS ETF position as of Q3 2025 after selling out during the quarter.
  • Summit X LLC sold 36,027 iShares MBS ETF shares in Q3 2025, an estimated $3.38M.
  • Summit X LLC first reported a position in iShares MBS ETF in Q4 2018 and held it in 25 quarters.
  • Summit X LLC's iShares MBS ETF position peaked at $8.27M in Q2 2023.
  • 933 funds tracked by Wall St. Rank held iShares MBS ETF as of Q3 2025.

Based on Summit X LLC's 13F filing for Q3 2025.