Simplex Trading
ADP icon

Simplex Trading’s Automatic Data Processing ADP Stock Holding History

Simplex Trading’s Portfolio ADP Stock Details ADP Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$529K Buy
+2,602
New +$597K ﹤0.01% 3188
2021
Q2 		– Sell
-911
Closed -$177K – 9927
2021
Q1 		$171K Sell
911
-3,400
-79% -$590K ﹤0.01% 4984
2020
Q4 		$759K Buy
+4,311
New +$708K ﹤0.01% 2903
2020
Q2 		– Sell
-4,448
Closed -$637K – 7506
2020
Q1 		$607K Buy
+4,448
New +$717K ﹤0.01% 2396
2019
Q4 		– Sell
-25,045
Closed -$4.15M – 7197
2019
Q3 		$4.04M Buy
25,045
+12,075
+93% +$1.99M 0.01% 848
2019
Q2 		$2.14M Buy
12,970
+2,534
+24% +$412K 0.01% 1261
2019
Q1 		$1.67M Buy
+10,436
New +$1.52M ﹤0.01% 1537
2018
Q4 		– Sell
-15,557
Closed -$2.2M – 6897
2018
Q3 		$2.34M Buy
+15,557
New +$2.2M 0.01% 1115
2018
Q2 		– Sell
-16,825
Closed -$2.13M – 7290
2018
Q1 		$1.91M Sell
16,825
-2,826
-14% -$330K 0.08% 198
2017
Q4 		$2.3M Buy
19,651
+16,874
+608% +$1.93M 0.1% 170
2017
Q3 		$303K Buy
+2,777
New +$297K 0.01% 951
2016
Q1 		– Sell
-230
Closed -$19.3K – 5486
2015
Q4 		$19K Sell
230
-936
-80% -$80.6K ﹤0.01% 2727
2015
Q3 		$93K Sell
1,166
-58
-5% -$4.64K 0.01% 1461
2015
Q2 		$98K Sell
1,224
-1,383
-53% -$118K 0.01% 1214
2015
Q1 		$223K Buy
2,607
+2,307
+769% +$199K 0.03% 672
2014
Q4 		$25K Buy
+300
New +$24.3K ﹤0.01% 1878

Other funds holding ADP

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return

Simplex Trading's ADP Position: Q1 2026 in Review

Simplex Trading opened a new position in Automatic Data Processing (ADP) in Q1 2026: 2,602 shares worth $529K. The stake represents ﹤0.01% of the portfolio and ranks #3188 among its holdings. This is a return to the name: Simplex Trading previously reported a position in ADP as recently as Q1 2021.

Simplex Trading first reported a position in ADP in Q4 2014 and has held it in 16 quarters since. The position peaked at $4.04M in Q3 2019. 2,265 funds tracked by Wall St. Rank hold ADP as of Q1 2026.

  • Simplex Trading held 2,602 shares of Automatic Data Processing worth $529K as of Q1 2026.
  • Automatic Data Processing was a new Simplex Trading position in Q1 2026.
  • Automatic Data Processing made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #3188 holding.
  • Simplex Trading first reported a position in Automatic Data Processing in Q4 2014 and has held it in 16 quarters since.
  • Simplex Trading's Automatic Data Processing position peaked at $4.04M in Q3 2019.
  • 2,265 funds tracked by Wall St. Rank held Automatic Data Processing as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.