Simplex Trading’s PDF Solutions PDFS Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $722K | Buy |
+10,205
| New | +$506K | ﹤0.01% | 3161 |
|
|
2026
Q1 | – | Sell |
-540
| Closed | -$17.6K | – | 9879 |
|
|
2025
Q4 | $15.4K | Buy |
+540
| New | +$14.9K | ﹤0.01% | 6697 |
|
|
2025
Q3 | – | Sell |
-198
| Closed | -$4.32K | – | 9802 |
|
|
2025
Q2 | $4K | Buy |
198
+89
| +82% | +$1.69K | ﹤0.01% | 7878 |
|
|
2025
Q1 | $2K | Sell |
109
-4,534
| -98% | -$111K | ﹤0.01% | 8041 |
|
|
2024
Q4 | $125K | Buy |
+4,643
| New | +$140K | ﹤0.01% | 4968 |
|
|
2024
Q3 | – | Sell |
-308
| Closed | -$11K | – | 9298 |
|
|
2024
Q2 | $11K | Sell |
308
-3,179
| -91% | -$106K | ﹤0.01% | 7376 |
|
|
2024
Q1 | $117K | Buy |
+3,487
| New | +$114K | ﹤0.01% | 5433 |
|
|
2022
Q4 | – | Sell |
-248
| Closed | -$6K | – | 10109 |
|
|
2022
Q3 | $6K | Buy |
+248
| New | +$6.27K | ﹤0.01% | 8665 |
|
|
2022
Q2 | – | Sell |
-1,656
| Closed | -$46K | – | 10803 |
|
|
2022
Q1 | $46K | Sell |
1,656
-3,847
| -70% | -$107K | ﹤0.01% | 7250 |
|
|
2021
Q4 | $174K | Buy |
5,503
+5,129
| +1,371% | +$143K | ﹤0.01% | 5389 |
|
|
2021
Q3 | $6K | Hold |
374
| – | – | ﹤0.01% | 9213 |
|
|
2021
Q2 | $6K | Buy |
+374
| New | +$6.7K | ﹤0.01% | 9389 |
|
|
2020
Q3 | – | Sell |
-1,788
| Closed | -$36.8K | – | 8306 |
|
|
2020
Q2 | $34K | Buy |
1,788
+1,724
| +2,694% | +$28K | ﹤0.01% | 5826 |
|
|
2020
Q1 | $0 | Buy |
+64
| New | +$945 | ﹤0.01% | 8084 |
|
|
2019
Q4 | – | Sell |
-24,710
| Closed | -$379K | – | 7809 |
|
|
2019
Q3 | $322K | Sell |
24,710
-7,313
| -23% | -$92.3K | ﹤0.01% | 3099 |
|
|
2019
Q2 | $420K | Sell |
32,023
-30,102
| -48% | -$386K | ﹤0.01% | 2733 |
|
|
2019
Q1 | $767K | Buy |
62,125
+29,664
| +91% | +$328K | ﹤0.01% | 2223 |
|
|
2018
Q4 | $273K | Sell |
32,461
-24,548
| -43% | -$208K | ﹤0.01% | 2817 |
|
|
2018
Q3 | $514K | Buy |
57,009
+53,964
| +1,772% | +$543K | ﹤0.01% | 2601 |
|
|
2018
Q2 | $36K | Buy |
+3,045
| New | +$36.4K | ﹤0.01% | 5393 |
|
|
2018
Q1 | – | Sell |
-704
| Closed | -$11K | – | 6678 |
|
|
2017
Q4 | $11K | Buy |
704
+610
| +649% | +$9.8K | ﹤0.01% | 3821 |
|
|
2017
Q3 | $1K | Sell |
94
-93
| -50% | -$1.5K | ﹤0.01% | 5535 |
|
|
2017
Q2 | $3K | Buy |
+187
| New | +$3.47K | ﹤0.01% | 5003 |
|
|
2016
Q1 | – | Sell |
-400
| Closed | -$4.38K | – | 6068 |
|
|
2015
Q4 | $4K | Buy |
400
+319
| +394% | +$3.46K | ﹤0.01% | 4054 |
|
|
2015
Q3 | $0 | Buy |
+81
| New | +$1.02K | ﹤0.01% | 6018 |
|
|
2015
Q2 | – | Sell |
-89
| Closed | -$1K | – | 5687 |
|
|
2015
Q1 | $1K | Buy |
+89
| New | +$1.55K | ﹤0.01% | 4547 |
|
Other funds holding PDFS
NIM
WA
RIM
SCM
JT
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. 282 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.
- 282 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.