Theory Financial’s iShares MBS ETF MBB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$10.6M Buy
111,949
+1,375
+1% +$131K 3.73% 3
2025
Q4
$10.6M Sell
110,574
-8,205
-7% -$783K 3.57% 4
2025
Q3
$11.4M Buy
118,779
+6,730
+6% +$632K 4.02% 4
2025
Q2
$10.4M Buy
112,049
+6,828
+6% +$633K 3.96% 4
2025
Q1
$9.87M Buy
105,221
+2,018
+2% +$187K 4.16% 5
2024
Q4
$9.46M Buy
103,203
+4,843
+5% +$451K 3.96% 6
2024
Q3
$9.13M Buy
98,360
+2,402
+3% +$227K 4.02% 5
2024
Q2
$8.81M Buy
95,958
+3,378
+4% +$308K 4.16% 4
2024
Q1
$8.56M Buy
92,580
+2,304
+3% +$213K 4.36% 2
2023
Q4
$8.49M Buy
90,276
+1,503
+2% +$135K 4.54% 2
2023
Q3
$7.88M Buy
88,773
+8,020
+10% +$733K 4.62% 2
2023
Q2
$7.53M Buy
+80,753
New +$7.6M 4.34% 3

Other funds holding MBB

Theory Financial's MBB Position: Q1 2026 in Review

Theory Financial increased its iShares MBS ETF (MBB) stake by 1.2% in Q1 2026, buying an estimated $131K and bringing the position to 111,949 shares worth $10.6M. The position accounts for 3.73% of the portfolio, ranked #3.

Theory Financial first reported a position in MBB in Q2 2023 and has held it in 12 quarters since. The position peaked at $11.4M in Q3 2025. 1,020 funds tracked by Wall St. Rank hold MBB as of Q1 2026.

  • Theory Financial held 111,949 shares of iShares MBS ETF worth $10.6M as of Q1 2026.
  • Theory Financial bought 1,375 iShares MBS ETF shares in Q1 2026, an estimated $131K.
  • iShares MBS ETF made up 3.73% of Theory Financial's portfolio in Q1 2026, its #3 holding.
  • Theory Financial first reported a position in iShares MBS ETF in Q2 2023 and has held it in 12 quarters since.
  • Theory Financial's iShares MBS ETF position peaked at $11.4M in Q3 2025.
  • 1,020 funds tracked by Wall St. Rank held iShares MBS ETF as of Q1 2026.

Based on Theory Financial's 13F filing for Q1 2026, filed 5 May 2026.