JY
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Jeff Yass’s PDF Solutions PDFS Stock Holding History

Jeff Yass’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 		$248K Buy
+3,500
New +$173K ﹤0.01% 11484
2022
Q1 		– Sell
-6,600
Closed -$210K – 13723
2021
Q4 		$210K Sell
6,600
-22,100
-77% -$615K ﹤0.01% 11341
2021
Q3 		$661K Buy
+28,700
New +$591K ﹤0.01% 8666
2020
Q1 		– Sell
-13,100
Closed -$221K – 10715
2019
Q4 		$221K Sell
13,100
-6,300
-32% -$96.6K ﹤0.01% 8589
2019
Q3 		$254K Buy
+19,400
New +$245K ﹤0.01% 8656
2019
Q1 		– Sell
-519,900
Closed -$4.38M – 9576
2018
Q4 		$4.38M Buy
519,900
+347,800
+202% +$2.95M ﹤0.01% 2436
2018
Q3 		$1.55M Buy
172,100
+155,700
+949% +$1.57M ﹤0.01% 4413
2018
Q2 		$196K Buy
+16,400
New +$196K ﹤0.01% 8625
2018
Q1 		– Sell
-12,700
Closed -$199K – 9955
2017
Q4 		$199K Buy
+12,700
New +$204K ﹤0.01% 8284
2017
Q2 		– Sell
-11,300
Closed -$256K – 9652
2017
Q1 		$256K Buy
+11,300
New +$252K ﹤0.01% 7628
2016
Q2 		– Sell
-11,400
Closed -$153K – 9135
2016
Q1 		$153K Sell
11,400
-2,300
-17% -$25.2K ﹤0.01% 8196
2015
Q4 		$149K Buy
+13,700
New +$149K ﹤0.01% 8653
2014
Q2 		– Sell
-11,200
Closed -$204K – 10005
2014
Q1 		$204K Buy
+11,200
New +$247K ﹤0.01% 8201

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

Jeff Yass's PDFS Position: Q2 2026 in Review

Jeff Yass increased its PDF Solutions (PDFS) stake by 226% in Q2 2026, buying an estimated $4.34M and bringing the position to 126,387 shares worth $8.95M. The position accounts for ﹤0.01% of the portfolio, ranked #3575.

Jeff Yass first reported a position in PDFS in Q3 2014 and has held it in 35 quarters since. 281 funds tracked by Wall St. Rank hold PDFS as of Q2 2026.

  • Jeff Yass held 126,387 shares of PDF Solutions worth $8.95M as of Q2 2026.
  • Jeff Yass bought 87,635 PDF Solutions shares in Q2 2026, an estimated $4.34M.
  • PDF Solutions made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #3575 holding.
  • Jeff Yass first reported a position in PDF Solutions in Q3 2014 and has held it in 35 quarters since.
  • 281 funds tracked by Wall St. Rank held PDF Solutions as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.