Jane Street’s ProShares Ultra High Yield UJB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-6,801
Closed -$537K 13043
2025
Q4
$537K Buy
+6,801
New +$532K ﹤0.01% 7508
2025
Q3
Sell
-6,448
Closed -$494K 11825
2025
Q2
$494K Sell
6,448
-885
-12% -$64.9K ﹤0.01% 6946
2025
Q1
$533K Buy
7,333
+1,625
+28% +$120K ﹤0.01% 6741
2024
Q4
$413K Sell
5,708
-9,459
-62% -$695K ﹤0.01% 7172
2024
Q3
$1.13M Buy
15,167
+9,544
+170% +$686K ﹤0.01% 5644
2024
Q2
$384K Sell
5,623
-3,056
-35% -$208K ﹤0.01% 7428
2024
Q1
$597K Sell
8,679
-2,384
-22% -$162K ﹤0.01% 6337
2023
Q4
$754K Buy
11,063
+1,799
+19% +$113K ﹤0.01% 6081
2023
Q3
$563K Sell
9,264
-6,760
-42% -$422K ﹤0.01% 6099
2023
Q2
$999K Buy
16,024
+4,878
+44% +$300K ﹤0.01% 5182
2023
Q1
$696K Sell
11,146
-197,234
-95% -$12.3M ﹤0.01% 5728
2022
Q4
$12.6M Buy
208,380
+204,614
+5,433% +$12.3M 0.01% 1390
2022
Q3
$209K Sell
3,766
-21,285
-85% -$1.32M ﹤0.01% 8107
2022
Q2
$1.45M Buy
25,051
+19,654
+364% +$1.27M ﹤0.01% 4769
2022
Q1
$385K Sell
5,397
-25,460
-83% -$1.86M ﹤0.01% 7949
2021
Q4
$2.43M Buy
30,857
+23,554
+323% +$1.83M ﹤0.01% 4083
2021
Q3
$571K Buy
7,303
+2,198
+43% +$172K ﹤0.01% 7031
2021
Q2
$397K Buy
+5,105
New +$388K ﹤0.01% 7680
2021
Q1
Sell
-13,683
Closed -$1.01M 9617
2020
Q4
$1.01M Sell
13,683
-5,568
-29% -$402K ﹤0.01% 4634
2020
Q3
$1.31M Buy
19,251
+14,818
+334% +$1.01M ﹤0.01% 3650
2020
Q2
$280K Sell
4,433
-13,865
-76% -$852K ﹤0.01% 5937
2020
Q1
$1.01M Buy
18,298
+3,279
+22% +$222K ﹤0.01% 2774
2019
Q4
$1.09M Sell
15,019
-5,469
-27% -$392K ﹤0.01% 2658
2019
Q3
$1.46M Buy
20,488
+808
+4% +$57.3K ﹤0.01% 2148
2019
Q2
$1.39M Buy
19,680
+14,205
+259% +$982K ﹤0.01% 2270
2019
Q1
$372K Buy
5,475
+442
+9% +$29K ﹤0.01% 4020
2018
Q4
$300K Sell
5,033
-25
-0.5% -$1.56K ﹤0.01% 4067
2018
Q3
$338K Sell
5,058
-421
-8% -$27.8K ﹤0.01% 4069
2018
Q2
$358K Buy
5,479
+99
+2% +$6.37K ﹤0.01% 3950
2018
Q1
$339K Buy
5,380
+50
+0.9% +$3.25K ﹤0.01% 3890
2017
Q4
$349K Buy
5,330
+159
+3% +$10.5K ﹤0.01% 3597
2017
Q3
$342K Sell
5,171
-336
-6% -$22.2K ﹤0.01% 3530
2017
Q2
$359K Buy
5,507
+1
+0% +$64 ﹤0.01% 3406
2017
Q1
$335K Buy
5,506
+920
+20% +$56.5K ﹤0.01% 3302
2016
Q4
$276K Buy
+4,586
New +$278K ﹤0.01% 3442
2015
Q4
Sell
-10,221
Closed -$517K 4494
2015
Q3
$517K Buy
10,221
+2,248
+28% +$125K ﹤0.01% 2270
2015
Q2
$454K Buy
7,973
+974
+14% +$57.6K ﹤0.01% 2388
2015
Q1
$406K Sell
6,999
-1,115
-14% -$64.7K ﹤0.01% 2247
2014
Q4
$465K Buy
+8,114
New +$465K ﹤0.01% 1538
2014
Q3
Sell
-6,843
Closed -$415K 3074
2014
Q2
$415K Sell
6,843
-11,901
-63% -$710K 0.01% 1558
2014
Q1
$1.09M Buy
18,744
+7,212
+63% +$414K 0.01% 896
2013
Q4
$638K Buy
11,532
+5,687
+97% +$309K 0.01% 1053
2013
Q3
$305K Sell
5,845
-10,549
-64% -$547K ﹤0.01% 2085
2013
Q2
$821K Buy
+16,394
New +$869K 0.01% 1049

Other funds holding UJB

Jane Street's UJB Position: Q1 2026 in Review

Jane Street sold out of ProShares Ultra High Yield (UJB) in Q1 2026, closing a stake of 6,801 shares — an estimated $537K sold.

Jane Street first reported a position in UJB in Q2 2013 and held it in 44 quarters. The position peaked at $12.6M in Q4 2022. 3 funds tracked by Wall St. Rank hold UJB as of Q1 2026.

  • Jane Street reported no remaining ProShares Ultra High Yield position as of Q1 2026 after selling out during the quarter.
  • Jane Street sold 6,801 ProShares Ultra High Yield shares in Q1 2026, an estimated $537K.
  • Jane Street first reported a position in ProShares Ultra High Yield in Q2 2013 and held it in 44 quarters.
  • Jane Street's ProShares Ultra High Yield position peaked at $12.6M in Q4 2022.
  • 3 funds tracked by Wall St. Rank held ProShares Ultra High Yield as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.