Simplex Trading
PDFS icon

Simplex Trading’s PDF Solutions PDFS Stock Holding History

Simplex Trading’s Portfolio PDFS Stock Details PDFS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-300
Closed -$9.81K – 10065
2026
Q1 		$9.81K Sell
300
-400
-57% -$13.1K ﹤0.01% 7378
2025
Q4 		$20K Buy
+700
New +$19.4K ﹤0.01% 6481
2025
Q1 		– Sell
-6,000
Closed -$162K – 9370
2024
Q4 		$162K Buy
+6,000
New +$181K ﹤0.01% 4721
2022
Q4 		– Sell
-200
Closed -$4K – 10110
2022
Q3 		$4K Buy
+200
New +$5.05K ﹤0.01% 8947
2022
Q1 		– Sell
-900
Closed -$28K – 11143
2021
Q4 		$28K Buy
+900
New +$25K ﹤0.01% 7996
2020
Q4 		– Sell
-12
Closed -$22K – 8885
2020
Q3 		$22K Buy
12
+9
+300% +$185 ﹤0.01% 6300
2020
Q2 		$5K Buy
+3
New +$49 ﹤0.01% 6990
2020
Q1 		– Sell
-1
Closed -$1K – 8085
2019
Q4 		$1K Sell
1
-444
-100% -$6.81K ﹤0.01% 7118
2019
Q3 		$581K Sell
445
-12
-3% -$151 ﹤0.01% 2456
2019
Q2 		$599K Buy
457
+280
+158% +$3.59K ﹤0.01% 2403
2019
Q1 		$218K Sell
177
-272
-61% -$3.01K ﹤0.01% 3518
2018
Q4 		$378K Sell
449
-346
-44% -$2.94K ﹤0.01% 2482
2018
Q3 		$717K Buy
795
+771
+3,213% +$7.76K ﹤0.01% 2233
2018
Q2 		$28K Buy
+24
New +$287 ﹤0.01% 5592
2018
Q1 		– Sell
-4
Closed -$1K – 6679
2017
Q4 		$1K Buy
+4
New +$64 ﹤0.01% 5592
2017
Q3 		– Sell
-7
Closed -$1K – 6443
2017
Q2 		$1K Buy
+7
New +$130 ﹤0.01% 5674

Other funds holding PDFS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
NIM
Needham Investment Management New York $3.33B AUM 163.16% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
RIM
Ranger Investment Management Dallas, Texas $1.58B AUM 51% 1-Year Est. Return
SCM
Snyder Capital Management San Francisco, California $5.79B AUM 33.56% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM

Simplex Trading's PDFS Position: Q2 2026 in Review

Simplex Trading opened a new position in PDF Solutions (PDFS) in Q2 2026: 10,205 shares worth $722K. The stake represents ﹤0.01% of the portfolio and ranks #3161 among its holdings. This is a return to the name: Simplex Trading previously reported a position in PDFS as recently as Q4 2025.

Simplex Trading first reported a position in PDFS in Q1 2015 and has held it in 26 quarters since. The position peaked at $767K in Q1 2019. 284 funds tracked by Wall St. Rank hold PDFS as of Q2 2026.

  • Simplex Trading held 10,205 shares of PDF Solutions worth $722K as of Q2 2026.
  • PDF Solutions was a new Simplex Trading position in Q2 2026.
  • PDF Solutions made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #3161 holding.
  • Simplex Trading first reported a position in PDF Solutions in Q1 2015 and has held it in 26 quarters since.
  • Simplex Trading's PDF Solutions position peaked at $767K in Q1 2019.
  • 284 funds tracked by Wall St. Rank held PDF Solutions as of Q2 2026.

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