Simplex Trading’s iShares MBS ETF MBB Stock Holding History

Simplex Trading’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 Q2	$86.4K	Buy	+914	New	+$86.4K	﹤0.01%	5732
2024 Q1	–	Sell	-64,585	Closed	-$6.08M	–	9426
2023 Q4	$6.08M	Buy	64,585 +63,368	+5,207%	+$5.68M	﹤0.01%	1412
2023 Q3	$108K	Buy	+1,217	New	+$111K	﹤0.01%	5004
2023 Q2	–	Sell	-7,640	Closed	-$723K	–	9534
2023 Q1	$723K	Buy	+7,640	New	+$721K	﹤0.01%	2901
2022 Q1	–	Sell	-981	Closed	-$105K	–	11001
2021 Q4	$105K	Buy	+981	New	+$106K	﹤0.01%	6184
2021 Q2	–	Sell	-432	Closed	-$46K	–	10421
2021 Q1	$46K	Buy	432 +59	+16%	+$6.46K	﹤0.01%	6719
2020 Q4	$41K	Buy	+373	New	+$41.1K	﹤0.01%	6386
2020 Q3	–	Sell	-4,932	Closed	-$545K	–	8171
2020 Q2	$545K	Buy	+4,932	New	+$546K	﹤0.01%	2791
2020 Q1	–	Sell	-4,000	Closed	–	–	7978
2019 Q4	$0	Buy	4,000 +2,708	+210%	+$293K	﹤0.01%	7672
2019 Q3	$139K	Buy	+1,292	New	+$139K	﹤0.01%	3957
2016 Q1	–	Sell	-543	Closed	-$58K	–	5951
2015 Q4	$58K	Buy	+543	New	+$59.1K	﹤0.01%	1802
2015 Q2	–	Sell	-326	Closed	-$35K	–	5566
2015 Q1	$35K	Buy	+326	New	+$35.8K	﹤0.01%	1831

Other funds holding MBB

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Envestnet Asset Management Chicago, Illinois $424B AUM 22.96% 1-Year Est. Return

LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

TWIM

TIAA Wealth Investment Management New York $15B AUM

Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

TCIIS

TIAA-CREF Individual & Institutional Services New York $29.1B AUM

Truist Financial Charlotte, North Carolina $83.7B AUM 27.22% 1-Year Est. Return

Simplex Trading's MBB Position: Q2 2026 in Review

Simplex Trading opened a new position in iShares MBS ETF (MBB) in Q2 2026: 914 shares worth $86.4K. The stake represents ﹤0.01% of the portfolio and ranks #5732 among its holdings. This is a return to the name: Simplex Trading previously reported a position in MBB as recently as Q4 2023.

Simplex Trading first reported a position in MBB in Q1 2015 and has held it in 12 quarters since. The position peaked at $6.08M in Q4 2023. 1,026 funds tracked by Wall St. Rank hold MBB as of Q2 2026.

Simplex Trading held 914 shares of iShares MBS ETF worth $86.4K as of Q2 2026.
iShares MBS ETF was a new Simplex Trading position in Q2 2026.
iShares MBS ETF made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #5732 holding.
Simplex Trading first reported a position in iShares MBS ETF in Q1 2015 and has held it in 12 quarters since.
Simplex Trading's iShares MBS ETF position peaked at $6.08M in Q4 2023.
1,026 funds tracked by Wall St. Rank held iShares MBS ETF as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.