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 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

RCM

Ridgepath Capital Management Knoxville, Tennessee $201M AUM 10.5% 1-Year Est. Return

SCM

Sollinda Capital Management Miami, Florida $412M AUM 15.79% 1-Year Est. Return

Jump Financial Chicago, Illinois $7.5B AUM 33.9% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

NKCFO LLC Geneva, Illinois $337M AUM 58.12% 1-Year Est. Return

GTS Securities New York $2.83B AUM 21.76% 1-Year Est. Return

TSS

Two Sigma Securities New York $861M AUM 21.33% 1-Year Est. Return

Squarepoint New York $85.1B AUM 20.93% 1-Year Est. Return

Jane Street's SRTY Position: Q1 2026 in Review

Jane Street opened a new position in ProShares UltraPro Short Russell2000 (SRTY) in Q1 2026: 8,360 shares worth $332K. The stake represents ﹤0.01% of the portfolio and ranks #9002 among its holdings. This is a return to the name: Jane Street previously reported a position in SRTY as recently as Q3 2025.

Jane Street first reported a position in SRTY in Q2 2015 and has held it in 26 quarters since. The position peaked at $3.21M in Q2 2022. 17 funds tracked by Wall St. Rank hold SRTY as of Q1 2026.

Jane Street held 8,360 shares of ProShares UltraPro Short Russell2000 worth $332K as of Q1 2026.
ProShares UltraPro Short Russell2000 was a new Jane Street position in Q1 2026.
ProShares UltraPro Short Russell2000 made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #9002 holding.
Jane Street first reported a position in ProShares UltraPro Short Russell2000 in Q2 2015 and has held it in 26 quarters since.
Jane Street's ProShares UltraPro Short Russell2000 position peaked at $3.21M in Q2 2022.
17 funds tracked by Wall St. Rank held ProShares UltraPro Short Russell2000 as of Q1 2026.

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