Simplex Trading
STEM icon

Simplex Trading’s Stem STEM Stock Holding History

Simplex Trading’s Portfolio STEM Stock Details STEM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$15.6K Buy
2,000
+1,300
+186% +$12.1K ﹤0.01% 7323
2026
Q1 		$6.19K Sell
700
-8,300
-92% -$111K ﹤0.01% 7742
2025
Q4 		$36.3K Sell
9,000
-16,500
-65% -$316K ﹤0.01% 5937
2025
Q3 		$446K Sell
25,500
-24,100
-49% -$341K ﹤0.01% 3965
2025
Q2 		$309K Buy
49,600
+49,095
+9,722% +$440K ﹤0.01% 4034
2025
Q1 		$3K Sell
505
-1,315
-72% -$15.2K ﹤0.01% 7884
2024
Q4 		$21K Buy
1,820
+690
+61% +$5.94K ﹤0.01% 6654
2024
Q3 		$7K Sell
1,130
-125
-10% -$1.97K ﹤0.01% 7461
2024
Q2 		$27K Buy
1,255
+330
+36% +$9.67K ﹤0.01% 6655
2024
Q1 		$40K Buy
925
+405
+78% +$22.5K ﹤0.01% 6477
2023
Q4 		$40K Buy
520
+130
+33% +$8.96K ﹤0.01% 6306
2023
Q3 		$33K Sell
390
-6,510
-94% -$743K ﹤0.01% 6182
2023
Q2 		$789K Sell
6,900
-3,165
-31% -$314K ﹤0.01% 2826
2023
Q1 		$1.14M Buy
10,065
+9,555
+1,874% +$1.62M ﹤0.01% 2472
2022
Q4 		$91K Sell
510
-3,825
-88% -$919K ﹤0.01% 5195
2022
Q3 		$1.16M Buy
4,335
+2,165
+100% +$554K ﹤0.01% 2494
2022
Q2 		$310K Buy
2,170
+540
+33% +$89.8K ﹤0.01% 4061
2022
Q1 		$358K Sell
1,630
-735
-31% -$171K ﹤0.01% 4296
2021
Q4 		$897K Sell
2,365
-11,035
-82% -$4.78M ﹤0.01% 3013
2021
Q3 		$9.92M Buy
13,400
+250
+2% +$132K 0.01% 730
2021
Q2 		$9.47M Buy
13,150
+13,108
+31,210% +$7.13M 0.01% 745
2021
Q1 		$2.21M Buy
42
+41
+4,100% +$26.3K ﹤0.01% 1504
2020
Q4 		$57K Buy
+1
New +$252 ﹤0.01% 6041

Other funds holding STEM

Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
TI
Trexquant Investment Stamford, Connecticut $17B AUM 39.66% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
GCP
GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return
BNP Paribas Financial Markets
BNP Paribas Financial Markets Paris, France $289B AUM 60.46% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

Simplex Trading's STEM Position: Q2 2026 in Review

Simplex Trading opened a new position in Stem (STEM) in Q2 2026: 840 shares worth $6.56K. The stake represents ﹤0.01% of the portfolio and ranks #7991 among its holdings. This is a return to the name: Simplex Trading previously reported a position in STEM as recently as Q1 2023.

Simplex Trading first reported a position in STEM in Q1 2021 and has held it in 5 quarters since. The position peaked at $446K in Q1 2023. 73 funds tracked by Wall St. Rank hold STEM as of Q2 2026.

  • Simplex Trading held 840 shares of Stem worth $6.56K as of Q2 2026.
  • Stem was a new Simplex Trading position in Q2 2026.
  • Stem made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #7991 holding.
  • Simplex Trading first reported a position in Stem in Q1 2021 and has held it in 5 quarters since.
  • Simplex Trading's Stem position peaked at $446K in Q1 2023.
  • 73 funds tracked by Wall St. Rank held Stem as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.