Group One Trading’s Select Medical SEM Stock Holding History

Group One Trading’s Portfolio SEM Stock Details SEM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.62K	Sell	98 -8,479	-99%	-$140K	﹤0.01%	7081
2026 Q1	$140K	Buy	+8,577	New	+$134K	﹤0.01%	4419
2023 Q2	–	Sell	-145	Closed	-$2.25K	–	8150
2023 Q1	$2.02K	Buy	145 +43	+42%	+$633	﹤0.01%	6614
2022 Q4	$1.37K	Buy	+102	New	+$1.32K	﹤0.01%	6765
2021 Q4	–	Sell	-2,821	Closed	-$48.2K	–	8780
2021 Q3	$55K	Buy	+2,821	New	+$56K	﹤0.01%	6472
2021 Q1	–	Sell	-43,802	Closed	-$718K	–	7977
2020 Q4	$653K	Buy	+43,802	New	+$572K	﹤0.01%	3045
2020 Q1	–	Sell	-27,840	Closed	-$331K	–	5691
2019 Q4	$350K	Buy	+27,840	New	+$300K	﹤0.01%	2731
2019 Q3	–	Sell	-5,193	Closed	-$44K	–	5491
2019 Q2	$44K	Buy	+5,193	New	+$41K	﹤0.01%	3839
2017 Q2	–	Sell	-6,682	Closed	-$50.1K	–	5047
2017 Q1	$48K	Hold	6,682	–	–	﹤0.01%	3436
2016 Q4	$48K	Hold	6,682	–	–	﹤0.01%	3285
2016 Q3	$49K	Buy	+6,682	New	+$42.5K	﹤0.01%	3363
2015 Q2	–	Sell	-1,060	Closed	-$8.9K	–	5137
2015 Q1	$8K	Buy	+1,060	New	+$7.92K	﹤0.01%	4232

Other funds holding SEM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Verition Fund Management Greenwich, Connecticut $19.7B AUM 39.39% 1-Year Est. Return

GCL

Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS) West Sacramento, California $782B AUM 28.39% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Wells Fargo San Francisco, California $617B AUM 30.33% 1-Year Est. Return

AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

DAM

Decagon Asset Management London, United Kingdom $525M AUM 50.51% 1-Year Est. Return

Group One Trading's SEM Position: Q2 2026 in Review

Group One Trading reduced its Select Medical (SEM) stake by 99% in Q2 2026, selling an estimated $140K and leaving 98 shares worth $1.62K. The position accounts for ﹤0.01% of the portfolio, ranked #7081.

Group One Trading first reported a position in SEM in Q1 2015 and has held it in 12 quarters since. The position peaked at $653K in Q4 2020. 240 funds tracked by Wall St. Rank hold SEM as of Q2 2026.

Group One Trading held 98 shares of Select Medical worth $1.62K as of Q2 2026.
Group One Trading sold 8,479 Select Medical shares in Q2 2026, an estimated $140K.
Select Medical made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #7081 holding.
Group One Trading first reported a position in Select Medical in Q1 2015 and has held it in 12 quarters since.
Group One Trading's Select Medical position peaked at $653K in Q4 2020.
240 funds tracked by Wall St. Rank held Select Medical as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.