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Entropy Technologies’s ACM Research ACMR Stock Holding History

Entropy Technologies’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 		$262K Buy
+2,068
New +$146K 0.01% 820
2025
Q4 		– Sell
-9,880
Closed -$387K – 855
2025
Q3 		$387K Buy
+9,880
New +$293K 0.03% 592
2024
Q2 		– Sell
-22,316
Closed -$650K – 648
2024
Q1 		$650K Buy
22,316
+9,866
+79% +$226K 0.07% 377
2023
Q4 		$243K Buy
+12,450
New +$218K 0.05% 481

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

Entropy Technologies's ACMR Position: Q2 2026 in Review

Entropy Technologies opened a new position in ACM Research (ACMR) in Q2 2026: 2,068 shares worth $262K. The stake represents 0.01% of the portfolio and ranks #820 among its holdings. This is a return to the name: Entropy Technologies previously reported a position in ACMR as recently as Q3 2025.

Entropy Technologies first reported a position in ACMR in Q4 2023 and has held it in 4 quarters since. The position peaked at $650K in Q1 2024. 376 funds tracked by Wall St. Rank hold ACMR as of Q2 2026.

  • Entropy Technologies held 2,068 shares of ACM Research worth $262K as of Q2 2026.
  • ACM Research was a new Entropy Technologies position in Q2 2026.
  • ACM Research made up 0.01% of Entropy Technologies's portfolio in Q2 2026, its #820 holding.
  • Entropy Technologies first reported a position in ACM Research in Q4 2023 and has held it in 4 quarters since.
  • Entropy Technologies's ACM Research position peaked at $650K in Q1 2024.
  • 376 funds tracked by Wall St. Rank held ACM Research as of Q2 2026.

Based on Entropy Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.