Parallax Volatility Advisers
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Parallax Volatility Advisers’s ACM Research ACMR Stock Holding History

Parallax Volatility Advisers’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
2021
Q3 		– Sell
-1,005,300
Closed -$34.3M – 2939
2021
Q2 		$34.3M Buy
1,005,300
+855,300
+570% +$23.5M 0.03% 433
2021
Q1 		$4.04M Buy
150,000
+98,400
+191% +$3.25M ﹤0.01% 1396
2020
Q4 		$1.4M Sell
51,600
-310,200
-86% -$7.94M ﹤0.01% 2042
2020
Q3 		$8.33M Buy
361,800
+213,600
+144% +$6.07M 0.01% 1083
2020
Q2 		$3.08M Buy
+148,200
New +$2.43M ﹤0.01% 1287

Other funds holding ACMR

BlackRock
BlackRock New York $6.73T AUM 46.02% 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
WCM Investment Management
WCM Investment Management Laguna Beach, California $55.2B AUM 57.07% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $40.1B AUM 376.19% 1-Year Est. Return
PCP
Polunin Capital Partners London, United Kingdom $407M AUM 55.12% 1-Year Est. Return

Parallax Volatility Advisers's ACMR Position: Q1 2026 in Review

Parallax Volatility Advisers sold out of ACM Research (ACMR) in Q1 2026, closing a stake of 20,937 shares — an estimated $826K sold.

Parallax Volatility Advisers first reported a position in ACMR in Q3 2020 and held it in 7 quarters. The position peaked at $2.38M in Q3 2020. 300 funds tracked by Wall St. Rank hold ACMR as of Q1 2026.

  • Parallax Volatility Advisers reported no remaining ACM Research position as of Q1 2026 after selling out during the quarter.
  • Parallax Volatility Advisers sold 20,937 ACM Research shares in Q1 2026, an estimated $826K.
  • Parallax Volatility Advisers first reported a position in ACM Research in Q3 2020 and held it in 7 quarters.
  • Parallax Volatility Advisers's ACM Research position peaked at $2.38M in Q3 2020.
  • 300 funds tracked by Wall St. Rank held ACM Research as of Q1 2026.

Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.