Simplex Trading
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Simplex Trading’s Advanced Drainage Systems WMS Stock Holding History

Simplex Trading’s Portfolio WMS Stock Details WMS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$515K Buy
+3,279
New +$469K ﹤0.01% 3570
2026
Q1 		– Sell
-2,126
Closed -$308K – 10323
2025
Q4 		$308K Buy
2,126
+1,664
+360% +$241K ﹤0.01% 3783
2025
Q3 		$64K Sell
462
-312
-40% -$41K ﹤0.01% 6210
2025
Q2 		$88K Sell
774
-2,455
-76% -$275K ﹤0.01% 5374
2025
Q1 		$350K Buy
+3,229
New +$376K ﹤0.01% 3773
2024
Q2 		– Sell
-8,701
Closed -$1.45M – 9958
2024
Q1 		$1.5M Buy
8,701
+3,483
+67% +$524K ﹤0.01% 2691
2023
Q4 		$733K Buy
5,218
+4,034
+341% +$486K ﹤0.01% 3326
2023
Q3 		$134K Buy
+1,184
New +$145K ﹤0.01% 4797
2022
Q2 		– Sell
-203
Closed -$20.9K – 11240
2022
Q1 		$24K Buy
+203
New +$24.1K ﹤0.01% 8050
2021
Q4 		– Sell
-1,634
Closed -$201K – 11577
2021
Q3 		$188K Hold
1,634
– – ﹤0.01% 5700
2021
Q2 		$190K Sell
1,634
-518
-24% -$57.5K ﹤0.01% 5765
2021
Q1 		$222K Sell
2,152
-6,345
-75% -$620K ﹤0.01% 4596
2020
Q4 		$710K Buy
8,497
+6,910
+435% +$490K ﹤0.01% 2986
2020
Q3 		$99K Buy
+1,587
New +$85.9K ﹤0.01% 4917
2020
Q2 		– Sell
-1,073
Closed -$44.1K – 8475
2020
Q1 		$31K Sell
1,073
-7,101
-87% -$287K ﹤0.01% 5606
2019
Q4 		$317K Sell
8,174
-8,958
-52% -$331K ﹤0.01% 3227
2019
Q3 		$552K Buy
17,132
+8,783
+105% +$285K ﹤0.01% 2519
2019
Q2 		$273K Buy
+8,349
New +$241K ﹤0.01% 3169
2019
Q1 		– Sell
-621
Closed -$15K – 7966
2018
Q4 		$15K Buy
621
+21
+4% +$565 ﹤0.01% 5584
2018
Q3 		$18K Buy
600
+69
+13% +$2.09K ﹤0.01% 6049
2018
Q2 		$15K Sell
531
-3,829
-88% -$103K ﹤0.01% 6093
2018
Q1 		$112K Sell
4,360
-9,568
-69% -$242K ﹤0.01% 1723
2017
Q4 		$332K Buy
+13,928
New +$300K 0.01% 936

Other funds holding WMS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
Impax Asset Management Group
Impax Asset Management Group London, United Kingdom $15.4B AUM 26.43% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Simplex Trading's WMS Position: Q2 2026 in Review

Simplex Trading opened a new position in Advanced Drainage Systems (WMS) in Q2 2026: 3,279 shares worth $515K. The stake represents ﹤0.01% of the portfolio and ranks #3570 among its holdings. This is a return to the name: Simplex Trading previously reported a position in WMS as recently as Q4 2025.

Simplex Trading first reported a position in WMS in Q4 2017 and has held it in 23 quarters since. The position peaked at $1.5M in Q1 2024. 553 funds tracked by Wall St. Rank hold WMS as of Q2 2026.

  • Simplex Trading held 3,279 shares of Advanced Drainage Systems worth $515K as of Q2 2026.
  • Advanced Drainage Systems was a new Simplex Trading position in Q2 2026.
  • Advanced Drainage Systems made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #3570 holding.
  • Simplex Trading first reported a position in Advanced Drainage Systems in Q4 2017 and has held it in 23 quarters since.
  • Simplex Trading's Advanced Drainage Systems position peaked at $1.5M in Q1 2024.
  • 553 funds tracked by Wall St. Rank held Advanced Drainage Systems as of Q2 2026.

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