Group One Trading
SEM

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 		– Sell
-99,900
Closed -$1.63M – 8393
2026
Q1 		$1.63M Buy
+99,900
New +$1.56M ﹤0.01% 2259
2024
Q2 		– Sell
-1,485
Closed -$24.1K – 7402
2024
Q1 		$24.1K Buy
+1,485
New +$21.7K ﹤0.01% 5286
2022
Q3 		– Sell
-371
Closed -$5K – 8168
2022
Q2 		$5K Sell
371
-1,856
-83% -$23.8K ﹤0.01% 7121
2022
Q1 		$29K Buy
+2,227
New +$29.4K ﹤0.01% 6506
2021
Q1 		– Sell
-56,608
Closed -$844K – 7978
2020
Q4 		$844K Buy
+56,608
New +$739K ﹤0.01% 2796
2019
Q1 		– Sell
-17,075
Closed -$141K – 5305
2018
Q4 		$141K Buy
+17,075
New +$163K ﹤0.01% 2944
2017
Q1 		– Sell
-27,840
Closed -$199K – 4962
2016
Q4 		$199K Hold
27,840
– – ﹤0.01% 2428
2016
Q3 		$203K Buy
+27,840
New +$177K ﹤0.01% 2461
2015
Q3 		– Sell
-48,256
Closed -$421K – 5154
2015
Q2 		$421K Buy
48,256
+6,682
+16% +$56.1K 0.01% 1926
2015
Q1 		$332K Buy
41,574
+32,294
+348% +$241K 0.01% 1950
2014
Q4 		$72K Buy
9,280
+8,166
+733% +$59.6K ﹤0.01% 3104
2014
Q3 		$7K Hold
1,114
– – ﹤0.01% 4620
2014
Q2 		$9K Buy
1,114
+928
+499% +$7.2K ﹤0.01% 4558
2014
Q1 		$1K Sell
186
-6,496
-97% -$39.4K ﹤0.01% 5078
2013
Q4 		$42K Buy
+6,682
New +$32.6K ﹤0.01% 3757

Other funds holding SEM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Verition Fund Management
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
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $617B AUM 30.33% 1-Year Est. Return
AA
AQR Arbitrage Greenwich, Connecticut $7.02B AUM 31.58% 1-Year Est. Return
Millennium Management
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
PAMP
Polar Asset Management Partners Toronto, Ontario, Canada $6.07B AUM 34.81% 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. 241 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.
  • 241 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.