Jane Street
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Jane Street’s ProShares Ultra Bloomberg Crude Oil UCO Stock Holding History

Jane Street’s Portfolio UCO Stock Details UCO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$26.9M Buy
684,900
+456,500
+200% +$12.7M ﹤0.01% 1527
2025
Q4 		$4.41M Buy
228,400
+68,900
+43% +$1.41M ﹤0.01% 3429
2025
Q3 		$3.59M Sell
159,500
-95,800
-38% -$2.25M ﹤0.01% 3931
2025
Q2 		$5.72M Buy
255,300
+10,600
+4% +$233K ﹤0.01% 2824
2025
Q1 		$6.62M Buy
244,700
+65,400
+36% +$1.78M ﹤0.01% 2505
2024
Q4 		$4.93M Sell
179,300
-502,800
-74% -$13.4M ﹤0.01% 2682
2024
Q3 		$17.3M Buy
+682,100
New +$20M ﹤0.01% 1356
2022
Q2 		– Sell
-1,265,200
Closed -$48.5M – 10925
2022
Q1 		$48.5M Buy
1,265,200
+385,200
+44% +$12.4M 0.02% 696
2021
Q4 		$19.1M Sell
880,000
-359,600
-29% -$7.97M 0.01% 1250
2021
Q3 		$26.1M Buy
1,239,600
+531,600
+75% +$9.91M 0.01% 950
2021
Q2 		$13.8M Sell
708,000
-425,200
-38% -$6.94M 0.01% 1392
2021
Q1 		$15M Buy
1,133,200
+404,368
+55% +$5.08M 0.01% 1208
2020
Q4 		$6.61M Sell
728,832
-198,064
-21% -$1.5M ﹤0.01% 1796
2020
Q3 		$6.59M Sell
926,896
-1,118,128
-55% -$8.61M ﹤0.01% 1577
2020
Q2 		$14.7M Buy
2,045,024
+1,953,904
+2,144% +$13.7M 0.01% 928
2020
Q1 		$906K Buy
91,120
+21,392
+31% +$1.63M ﹤0.01% 2909
2019
Q4 		$8.92M Buy
69,728
+9,584
+16% +$1.06M 0.01% 704
2019
Q3 		$6.1M Buy
60,144
+52,992
+741% +$5.95M 0.01% 853
2019
Q2 		$864K Sell
7,152
-2,432
-25% -$324K ﹤0.01% 2892
2019
Q1 		$1.29M Sell
9,584
-108,496
-92% -$12.6M ﹤0.01% 2517
2018
Q4 		$9.81M Buy
118,080
+54,912
+87% +$8.25M 0.02% 589
2018
Q3 		$14.2M Buy
63,168
+39,968
+172% +$7.82M 0.03% 442
2018
Q2 		$4.99M Sell
23,200
-20,352
-47% -$3.81M 0.01% 1043
2018
Q1 		$7.49M Sell
43,552
-10,744
-20% -$1.72M 0.02% 698
2017
Q4 		$7.95M Buy
54,296
+15,608
+40% +$1.96M 0.02% 601
2017
Q3 		$4.31M Sell
38,688
-8,384
-18% -$834K 0.01% 972
2017
Q2 		$4.37M Sell
47,072
-23,144
-33% -$2.43M 0.02% 857
2017
Q1 		$8.35M Buy
70,216
+44,928
+178% +$5.82M 0.04% 449
2016
Q4 		$3.69M Buy
25,288
+11,352
+81% +$1.49M 0.02% 866
2016
Q3 		$1.81M Sell
13,936
-56,240
-80% -$6.91M 0.01% 1307
2016
Q2 		$10.7M Buy
70,176
+9,784
+16% +$1.42M 0.05% 316
2016
Q1 		$6.73M Buy
60,392
+54,754
+971% +$5.93M 0.04% 436
2015
Q4 		$884K Sell
5,638
-24,808
-81% -$5.86M 0.01% 1877
2015
Q3 		$8.63M Buy
30,446
+27,769
+1,037% +$9.16M 0.05% 293
2015
Q2 		$1.51M Sell
2,677
-989
-27% -$566K 0.01% 1195
2015
Q1 		$1.56M Buy
3,666
+3,103
+551% +$1.53M 0.01% 1051
2014
Q4 		$365K Sell
563
-35
-6% -$43.8K ﹤0.01% 1726
2014
Q3 		$1.14M Buy
598
+225
+60% +$473K 0.01% 855
2014
Q2 		$913K Sell
373
-168
-31% -$382K 0.01% 968
2014
Q1 		$1.17M Buy
541
+98
+22% +$198K 0.01% 848
2013
Q4 		$892K Buy
+443
New +$880K 0.01% 846
2013
Q3 		– Sell
-542
Closed -$1.02M – 3129
2013
Q2 		$1.02M Buy
+542
New +$990K 0.02% 896

Other funds holding UCO

Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
QC
Quadrature Capital London, United Kingdom $8.4B AUM 63.34% 1-Year Est. Return
JF
Jump Financial Chicago, Illinois $7.5B AUM 33.9% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return
TSS
Two Sigma Securities New York $861M AUM 21.33% 1-Year Est. Return
QFA
Quantum Financial Advisors El Segundo, California $1.01B AUM 23.7% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
SWM
Spire Wealth Management Mclean, Virginia $3.31B AUM 38.78% 1-Year Est. Return
Simplex Trading
Simplex Trading Chicago, Illinois $149B AUM 62.07% 1-Year Est. Return

Jane Street's UCO Position: Q1 2026 in Review

Jane Street opened a new position in ProShares Ultra Bloomberg Crude Oil (UCO) in Q1 2026: 23,460 shares worth $922K. The stake represents ﹤0.01% of the portfolio and ranks #6696 among its holdings. This is a return to the name: Jane Street previously reported a position in UCO as recently as Q3 2025.

Jane Street first reported a position in UCO in Q4 2013 and has held it in 45 quarters since. The position peaked at $30M in Q4 2022. 42 funds tracked by Wall St. Rank hold UCO as of Q1 2026.

  • Jane Street held 23,460 shares of ProShares Ultra Bloomberg Crude Oil worth $922K as of Q1 2026.
  • ProShares Ultra Bloomberg Crude Oil was a new Jane Street position in Q1 2026.
  • ProShares Ultra Bloomberg Crude Oil made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #6696 holding.
  • Jane Street first reported a position in ProShares Ultra Bloomberg Crude Oil in Q4 2013 and has held it in 45 quarters since.
  • Jane Street's ProShares Ultra Bloomberg Crude Oil position peaked at $30M in Q4 2022.
  • 42 funds tracked by Wall St. Rank held ProShares Ultra Bloomberg Crude Oil as of Q1 2026.

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