Jane Street
SRTY icon

Jane Street’s ProShares UltraPro Short Russell2000 SRTY Stock Holding History

Jane Street’s Portfolio SRTY Stock Details SRTY Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$255K Buy
+9,500
New +$218K ﹤0.01% 9550
2026
Q2 		– Sell
-6,800
Closed -$270K – 13057
2026
Q1 		$270K Buy
+6,800
New +$249K ﹤0.01% 9453
2022
Q2 		– Sell
-1,635
Closed -$312K – 10821
2022
Q1 		$312K Sell
1,635
-1,065
-39% -$221K ﹤0.01% 8337
2021
Q4 		$454K Buy
2,700
+505
+23% +$85.8K ﹤0.01% 7446
2021
Q3 		$424K Buy
2,195
+595
+37% +$115K ﹤0.01% 7588
2021
Q2 		$287K Buy
1,600
+538
+51% +$106K ﹤0.01% 8221
2021
Q1 		$227K Buy
+1,062
New +$256K ﹤0.01% 8102
2020
Q4 		– Sell
-584
Closed -$502K – 8084
2020
Q3 		$502K Buy
+584
New +$526K ﹤0.01% 5150
2019
Q3 		– Sell
-172
Closed -$402K – 5717
2019
Q2 		$402K Buy
172
+39
+29% +$96.5K ﹤0.01% 3855
2019
Q1 		$339K Buy
+133
New +$370K ﹤0.01% 4120
2018
Q4 		– Sell
-180
Closed -$395K – 5672
2018
Q3 		$395K Sell
180
-8
-4% -$17.7K ﹤0.01% 3896
2018
Q2 		$461K Buy
188
+61
+48% +$162K ﹤0.01% 3663
2018
Q1 		$396K Sell
127
-2,118
-94% -$6.5M ﹤0.01% 3729
2017
Q4 		$7.26M Buy
2,245
+75
+3% +$258K 0.02% 655
2017
Q3 		$7.81M Buy
+2,170
New +$9.28M 0.03% 615
2016
Q3 		– Sell
-57
Closed -$535K – 4507
2016
Q2 		$535K Buy
57
+1
+2% +$10.4K ﹤0.01% 2701
2016
Q1 		$627K Buy
+56
New +$813K ﹤0.01% 2358

Other funds holding SRTY

Jump Financial
Jump Financial Chicago, Illinois $13.9B AUM 45.06% 1-Year Est. Return
HRT Financial
HRT Financial New York $57.2B AUM 52.85% 1-Year Est. Return
Quadrature Capital
Quadrature Capital London, United Kingdom $16.1B AUM 61.25% 1-Year Est. Return
Brookstone Capital Management
Brookstone Capital Management Wheaton, Illinois $10.1B AUM 17.94% 1-Year Est. Return
Simplex Trading
Simplex Trading Chicago, Illinois $184B AUM 51.71% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $73.3B AUM 63.67% 1-Year Est. Return
Game Plan Financial Advisors
Game Plan Financial Advisors Westlake, Ohio $264M AUM 21.06% 1-Year Est. Return
Danske Bank
Danske Bank Copenhagen K, Denmark $50.1B AUM 35.17% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return

Jane Street's SRTY Position: Q3 2026 in Review

Jane Street opened a new position in ProShares UltraPro Short Russell2000 (SRTY) in Q3 2026: 55,776 shares worth $1.49M. The stake represents ﹤0.01% of the portfolio and ranks #5716 among its holdings. This is a return to the name: Jane Street previously reported a position in SRTY as recently as Q1 2026.

Jane Street first reported a position in SRTY in Q2 2015 and has held it in 27 quarters since. The position peaked at $3.22M in Q2 2022. 11 funds tracked by Wall St. Rank hold SRTY as of Q3 2026.

  • Jane Street held 55,776 shares of ProShares UltraPro Short Russell2000 worth $1.49M as of Q3 2026.
  • ProShares UltraPro Short Russell2000 was a new Jane Street position in Q3 2026.
  • ProShares UltraPro Short Russell2000 made up ﹤0.01% of Jane Street's portfolio in Q3 2026, its #5716 holding.
  • Jane Street first reported a position in ProShares UltraPro Short Russell2000 in Q2 2015 and has held it in 27 quarters since.
  • Jane Street's ProShares UltraPro Short Russell2000 position peaked at $3.22M in Q2 2022.
  • 11 funds tracked by Wall St. Rank held ProShares UltraPro Short Russell2000 as of Q3 2026.

Based on Jane Street's 13F filing for Q3 2026, filed 12 Nov 2026.