Optiver Holding
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Optiver Holding’s ACM Research ACMR Stock Holding History

Optiver Holding’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
Q1 		$3.35K Buy
+85
New +$4.51K ﹤0.01% 1605
2025
Q4 		– Sell
-170
Closed -$6.65K – 2445
2025
Q3 		$6.65K Sell
170
-134
-44% -$3.98K ﹤0.01% 1536
2025
Q2 		$7.87K Sell
304
-43
-12% -$967 ﹤0.01% 1068
2025
Q1 		$8.1K Buy
+347
New +$7.92K ﹤0.01% 963

Other funds holding ACMR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $43.8B AUM 42.28% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $20.7B AUM 292.88% 1-Year Est. Return
PCP
Polunin Capital Partners London, United Kingdom $407M AUM 55.12% 1-Year Est. Return

Optiver Holding's ACMR Position: Q1 2026 in Review

Optiver Holding opened a new position in ACM Research (ACMR) in Q1 2026: 85 shares worth $3.35K. The stake represents ﹤0.01% of the portfolio and ranks #1605 among its holdings. This is a return to the name: Optiver Holding previously reported a position in ACMR as recently as Q3 2025.

Optiver Holding first reported a position in ACMR in Q1 2025 and has held it in 4 quarters since. The position peaked at $8.1K in Q1 2025. 300 funds tracked by Wall St. Rank hold ACMR as of Q1 2026.

  • Optiver Holding held 85 shares of ACM Research worth $3.35K as of Q1 2026.
  • ACM Research was a new Optiver Holding position in Q1 2026.
  • ACM Research made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #1605 holding.
  • Optiver Holding first reported a position in ACM Research in Q1 2025 and has held it in 4 quarters since.
  • Optiver Holding's ACM Research position peaked at $8.1K in Q1 2025.
  • 300 funds tracked by Wall St. Rank held ACM Research as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.