State of Wisconsin Investment Board
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State of Wisconsin Investment Board’s iShares MBS ETF MBB Stock Holding History

State of Wisconsin Investment Board’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
2021
Q4 		– Sell
-327,320
Closed -$35.4M – 2187
2021
Q3 		$35.4M Sell
327,320
-139,625
-30% -$15.1M 0.07% 299
2021
Q2 		$50.5M Buy
466,945
+286,945
+159% +$31.1M 0.1% 217
2021
Q1 		$19.5M Buy
+180,000
New +$19.7M 0.04% 450

Other funds holding MBB

Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
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 $424B AUM 22.96% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
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
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

State of Wisconsin Investment Board's MBB Position: Q4 2021 in Review

State of Wisconsin Investment Board sold out of iShares MBS ETF (MBB) in Q4 2021, closing a stake of 327,320 shares — an estimated $35.4M sold.

State of Wisconsin Investment Board first reported a position in MBB in Q1 2021 and held it in 3 quarters. The position peaked at $50.5M in Q2 2021. 723 funds tracked by Wall St. Rank hold MBB as of Q4 2021.

  • State of Wisconsin Investment Board reported no remaining iShares MBS ETF position as of Q4 2021 after selling out during the quarter.
  • State of Wisconsin Investment Board sold 327,320 iShares MBS ETF shares in Q4 2021, an estimated $35.4M.
  • State of Wisconsin Investment Board first reported a position in iShares MBS ETF in Q1 2021 and held it in 3 quarters.
  • State of Wisconsin Investment Board's iShares MBS ETF position peaked at $50.5M in Q2 2021.
  • 723 funds tracked by Wall St. Rank held iShares MBS ETF as of Q4 2021.

Based on State of Wisconsin Investment Board's 13F filing for Q4 2021, filed 11 Feb 2022.