Citadel Advisors’s iShares Core Universal USD Bond ETF IUSB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q2
Sell
-100
Closed -$4.61K 13789
2025
Q1
$4.61K Buy
+100
New +$4.56K ﹤0.01% 13879
2024
Q3
Sell
-800
Closed -$36.2K 14731
2024
Q2
$36.2K Buy
800
+100
+14% +$4.5K ﹤0.01% 12089
2024
Q1
$31.9K Buy
+700
New +$31.9K ﹤0.01% 12634
2023
Q4
Sell
-2,500
Closed -$109K 14774
2023
Q3
$109K Buy
2,500
+800
+47% +$35.8K ﹤0.01% 10781
2023
Q2
$77.3K Sell
1,700
-22,500
-93% -$1.03M ﹤0.01% 11282
2023
Q1
$1.12M Buy
24,200
+14,500
+149% +$664K ﹤0.01% 6532
2022
Q4
$436K Buy
+9,700
New +$434K ﹤0.01% 8534

Other funds holding IUSB

Citadel Advisors's IUSB Position: Q1 2026 in Review

Citadel Advisors opened a new position in iShares Core Universal USD Bond ETF (IUSB) in Q1 2026: 293,817 shares worth $13.6M. The stake represents ﹤0.01% of the portfolio and ranks #2812 among its holdings. This is a return to the name: Citadel Advisors previously reported a position in IUSB as recently as Q3 2025.

Citadel Advisors first reported a position in IUSB in Q1 2015 and has held it in 18 quarters since. The position peaked at $59.9M in Q3 2025. 837 funds tracked by Wall St. Rank hold IUSB as of Q1 2026.

  • Citadel Advisors held 293,817 shares of iShares Core Universal USD Bond ETF worth $13.6M as of Q1 2026.
  • iShares Core Universal USD Bond ETF was a new Citadel Advisors position in Q1 2026.
  • iShares Core Universal USD Bond ETF made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #2812 holding.
  • Citadel Advisors first reported a position in iShares Core Universal USD Bond ETF in Q1 2015 and has held it in 18 quarters since.
  • Citadel Advisors's iShares Core Universal USD Bond ETF position peaked at $59.9M in Q3 2025.
  • 837 funds tracked by Wall St. Rank held iShares Core Universal USD Bond ETF as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.