UBS O'Connor’s iShares Russell 2000 ETF IWM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q3
Sell
-105,000
Closed -$288K 374
2025
Q2
$288K Buy
+105,000
New +$21.1M 0.01% 287
2025
Q1
Sell
-45,000
Closed -$55.5K 403
2024
Q4
$55.5K Sell
45,000
-115,000
-72% -$26.2M ﹤0.01% 363
2024
Q3
$522K Buy
+160,000
New +$34.2M 0.01% 341
2024
Q2
Sell
-30,000
Closed -$205K 590
2024
Q1
$205K Hold
30,000
0.01% 401
2023
Q4
$128K Sell
30,000
-10,000
-25% -$1.79M ﹤0.01% 406
2023
Q3
$97.6K Buy
40,000
+10,000
+33% +$1.88M ﹤0.01% 469
2023
Q2
$65.7K Buy
+30,000
New +$5.35M ﹤0.01% 503
2017
Q4
Sell
-140,000
Closed -$342K 332
2017
Q3
$342K Buy
+140,000
New +$19.7M 0.01% 310
2017
Q2
Sell
-50,000
Closed -$4K 433
2017
Q1
$4K Hold
50,000
﹤0.01% 401
2016
Q4
$68K Buy
+50,000
New +$6.39M ﹤0.01% 383

Other funds holding IWM

UBS O'Connor's IWM Position: Q4 2025 in Review

UBS O'Connor opened a new position in iShares Russell 2000 ETF (IWM) in Q4 2025: 52,000 shares worth $12.8M. The stake represents 0.34% of the portfolio and ranks #30 among its holdings. This is a return to the name: UBS O'Connor previously reported a position in IWM as recently as Q2 2025.

UBS O'Connor first reported a position in IWM in Q1 2014 and has held it in 15 quarters since. The position peaked at $28.5M in Q3 2015. 2,601 funds tracked by Wall St. Rank hold IWM as of Q4 2025.

  • UBS O'Connor held 52,000 shares of iShares Russell 2000 ETF worth $12.8M as of Q4 2025.
  • iShares Russell 2000 ETF was a new UBS O'Connor position in Q4 2025.
  • iShares Russell 2000 ETF made up 0.34% of UBS O'Connor's portfolio in Q4 2025, its #30 holding.
  • UBS O'Connor first reported a position in iShares Russell 2000 ETF in Q1 2014 and has held it in 15 quarters since.
  • UBS O'Connor's iShares Russell 2000 ETF position peaked at $28.5M in Q3 2015.
  • 2,601 funds tracked by Wall St. Rank held iShares Russell 2000 ETF as of Q4 2025.

Based on UBS O'Connor's 13F filing for Q4 2025, filed 13 Feb 2026.