Barclays
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Barclays’s iShares MBS ETF MBB Stock Holding History

Barclays’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
2020
Q3 		– Sell
-1,000,000
Closed -$111M – 5421
2020
Q2 		$111M Buy
+1,000,000
New +$111M 0.09% 170
2019
Q4 		– Sell
-1,000,000
Closed -$108M – 6621
2019
Q3 		$108M Buy
+1,000,000
New +$108M 0.07% 231

Other funds holding MBB

LPL Financial
LPL Financial San Diego, California $468B AUM 17.69% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
Truist Financial
Truist Financial Charlotte, North Carolina $84.4B AUM 20.16% 1-Year Est. Return
Allworth Financial
Allworth Financial Folsom, California $28.2B AUM 13.34% 1-Year Est. Return
PNC Financial Services Group
PNC Financial Services Group Pittsburgh, Pennsylvania $191B AUM 30.51% 1-Year Est. Return
Midland Wealth Advisors
Midland Wealth Advisors Effingham, Illinois $2.16B AUM 9.37% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $313B AUM 26.62% 1-Year Est. Return
Miracle Mile Advisors
Miracle Mile Advisors Los Angeles, California $8.91B AUM 15.32% 1-Year Est. Return
SEI Investments
SEI Investments Oaks, Pennsylvania $113B AUM 26.61% 1-Year Est. Return
CLA (CliftonLarsonAllen) Wealth Advisors
CLA (CliftonLarsonAllen) Wealth Advisors Minneapolis, Minnesota $7.66B AUM 9.25% 1-Year Est. Return

Barclays's MBB Position: Q3 2026 in Review

Barclays increased its iShares MBS ETF (MBB) stake by 1,477% in Q3 2026, buying an estimated $253M and bringing the position to 2,907,852 shares worth $261M. The position accounts for 0.05% of the portfolio, ranked #233.

Barclays first reported a position in MBB in Q2 2013 and has held it in 38 quarters since. The position peaked at $726M in Q3 2025. 628 funds tracked by Wall St. Rank hold MBB as of Q3 2026.

  • Barclays held 2,907,852 shares of iShares MBS ETF worth $261M as of Q3 2026.
  • Barclays bought 2,723,432 iShares MBS ETF shares in Q3 2026, an estimated $253M.
  • iShares MBS ETF made up 0.05% of Barclays's portfolio in Q3 2026, its #233 holding.
  • Barclays first reported a position in iShares MBS ETF in Q2 2013 and has held it in 38 quarters since.
  • Barclays's iShares MBS ETF position peaked at $726M in Q3 2025.
  • 628 funds tracked by Wall St. Rank held iShares MBS ETF as of Q3 2026.

Based on Barclays's 13F filing for Q3 2026, filed 6 Nov 2026.