JY
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Jeff Yass’s ACM Research ACMR Stock Holding History

Jeff Yass’s Portfolio ACMR Stock Details ACMR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$86.1M Buy
678,700
+11,400
+2% +$806K 0.01% 1066
2026
Q1 		$26.3M Sell
667,300
-27,700
-4% -$1.47M ﹤0.01% 1896
2025
Q4 		$27.4M Sell
695,000
-3,200
-0.5% -$119K ﹤0.01% 1904
2025
Q3 		$27.3M Buy
698,200
+275,500
+65% +$8.18M ﹤0.01% 1883
2025
Q2 		$10.9M Buy
422,700
+68,900
+19% +$1.55M ﹤0.01% 2704
2025
Q1 		$8.26M Buy
353,800
+60,300
+21% +$1.38M ﹤0.01% 2786
2024
Q4 		$4.43M Sell
293,500
-219,500
-43% -$3.97M ﹤0.01% 3793
2024
Q3 		$10.4M Buy
513,000
+234,800
+84% +$4.5M ﹤0.01% 2559
2024
Q2 		$6.42M Sell
278,200
-107,200
-28% -$2.71M ﹤0.01% 3059
2024
Q1 		$11.2M Sell
385,400
-73,200
-16% -$1.68M ﹤0.01% 2447
2023
Q4 		$8.96M Sell
458,600
-109,600
-19% -$1.92M ﹤0.01% 2776
2023
Q3 		$10.3M Buy
568,200
+335,300
+144% +$4.99M ﹤0.01% 2531
2023
Q2 		$3.05M Buy
232,900
+21,800
+10% +$230K ﹤0.01% 4341
2023
Q1 		$2.47M Buy
211,100
+85,700
+68% +$991K ﹤0.01% 4711
2022
Q4 		$967K Buy
125,400
+10,300
+9% +$87.3K ﹤0.01% 6274
2022
Q3 		$1.43M Sell
115,100
-5,700
-5% -$92.7K ﹤0.01% 5709
2022
Q2 		$2.03M Buy
120,800
+18,700
+18% +$288K ﹤0.01% 4894
2022
Q1 		$2.11M Buy
102,100
+58,900
+136% +$1.48M ﹤0.01% 5358
2021
Q4 		$1.23M Sell
43,200
-352,200
-89% -$11.1M ﹤0.01% 6727
2021
Q3 		$14.5M Sell
395,400
-116,400
-23% -$3.56M ﹤0.01% 2362
2021
Q2 		$17.4M Buy
511,800
+197,100
+63% +$5.41M ﹤0.01% 2213
2021
Q1 		$8.47M Buy
314,700
+67,500
+27% +$2.23M ﹤0.01% 3044
2020
Q4 		$6.7M Buy
247,200
+600
+0.2% +$15.3K ﹤0.01% 3000
2020
Q3 		$5.68M Buy
246,600
+118,200
+92% +$3.36M ﹤0.01% 2891
2020
Q2 		$2.67M Buy
128,400
+63,000
+96% +$1.03M ﹤0.01% 3992
2020
Q1 		$645K Buy
+65,400
New +$705K ﹤0.01% 6388

Other funds holding ACMR

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
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $40.1B AUM 376.19% 1-Year Est. Return
WA
WFM Asia Road Town, Tortola, British Virgin Islands $663M AUM 15.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Jeff Yass's ACMR Position: Q2 2026 in Review

Jeff Yass increased its ACM Research (ACMR) stake by 325% in Q2 2026, buying an estimated $13.7M and bringing the position to 253,671 shares worth $32.2M. The position accounts for ﹤0.01% of the portfolio, ranked #1941.

Jeff Yass first reported a position in ACMR in Q3 2020 and has held it in 23 quarters since. 374 funds tracked by Wall St. Rank hold ACMR as of Q2 2026.

  • Jeff Yass held 253,671 shares of ACM Research worth $32.2M as of Q2 2026.
  • Jeff Yass bought 193,924 ACM Research shares in Q2 2026, an estimated $13.7M.
  • ACM Research made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #1941 holding.
  • Jeff Yass first reported a position in ACM Research in Q3 2020 and has held it in 23 quarters since.
  • 374 funds tracked by Wall St. Rank held ACM Research as of Q2 2026.

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