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ACM Research
ACMR

300 hedge funds and large institutions have $1.74B invested in ACM Research in 2026 Q1 according to their latest regulatory filings, with 74 funds opening new positions, 81 increasing their positions, 105 reducing their positions, and 44 closing their positions.

New
Increased
Maintained
Reduced
Closed

141% more call options, than puts

Call options by funds: $113M | Put options by funds: $47M

68% more first-time investments, than exits

New positions opened: 74 | Existing positions closed: 44

8% more funds holding

Funds holding: 277 → 300 (+23)

2% less capital invested

Capital invested by funds: $1.79B → $1.74B (-$41M)

2.41% less ownership

Funds ownership: 75.54% → 73.13% (-2.4%)

23% less repeat investments, than reductions

Existing positions increased: 81 | Existing positions reduced: 105

25% less funds holding in top 10

Funds holding in top 10: 8 → 6 (-2)

Holders
300
Holders Change
+23
Holders Change %
+8.3%
% of All Funds
3.69%
Holding in Top 10
6
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-25%
% of All Funds
0.07%
New
74
Increased
81
Reduced
105
Closed
44
Calls
$113M
Puts
$47M
Net Calls
+$66.4M
Net Calls Change
+$24.2M

Top Buyers

1
WCM Investment Management
WCM Investment Management
California
+$98.2M
2
VARA
Value Aligned Research Advisors
New Jersey
+$50.7M
3
PCP
Polunin Capital Partners
United Kingdom
+$40.5M
4
LP
Longaeva Partners
Illinois
+$37.6M
5
OCMH
Oxbow Capital Management (HK)
Hong Kong
+$31.7M

Top Sellers

1
LSV Asset Management
LSV Asset Management
Illinois
-$97.4M
2
TC
Triata Capital
Hong Kong
-$76.1M
3
SAM
Southeastern Asset Management
Tennessee
-$47.6M
4
Invesco
Invesco
Georgia
-$29.5M
5
BBCM
Broad Bay Capital Management
New York
-$25.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
Mackenzie Financial
76
Mackenzie Financial
Ontario, Canada
$2.79M +$754K +14,198 +25%
HCM
77
Horiko Capital Management
New York
$2.6M +$3.5M +66,000 New
Millennium Management
78
Millennium Management
New York
$2.58M +$2.23M +42,060 +179%
California State Teachers Retirement System (CalSTRS)
79
California State Teachers Retirement System (CalSTRS)
California
$2.48M +$821K +15,460 +32%
HSA
80
Hussman Strategic Advisors
Maryland
$2.48M – – –
II
81
Inspire Investing
Idaho
$2.47M +$466K +8,780 +16%
Victory Capital Management
82
Victory Capital Management
Texas
$2.37M -$1.31M -24,653 -29%
Susquehanna International Group
83
Susquehanna International Group
Pennsylvania
$2.35M +$2.1M +39,504 +195%
AllianceBernstein
84
AllianceBernstein
Tennessee
$2.29M +$54.6K +1,028 +2%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
85
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$2.25M +$3.03M +57,148 New
XT
86
XTX Topco
Cayman Islands
$2.22M +$3M +56,466 New
Bessemer Group
87
Bessemer Group
New Jersey
$2.2M -$1.48M -27,808 -33%
Prudential Financial
88
Prudential Financial
New Jersey
$2.13M +$256K +4,815 +10%
QCM
89
Quantinno Capital Management
New York
$2.12M -$73.3K -1,381 -2%
BNP Paribas Financial Markets
90
BNP Paribas Financial Markets
France
$2.11M -$3.18M -59,991 -53%
State Board of Administration of Florida Retirement System
91
State Board of Administration of Florida Retirement System
Florida
$2.07M -$610K -11,484 -18%
Two Sigma Investments
92
Two Sigma Investments
New York
$2.06M +$2.78M +52,416 New
Barclays
93
Barclays
United Kingdom
$1.94M -$3.06M -57,710 -54%
Balyasny Asset Management
94
Balyasny Asset Management
Illinois
$1.85M +$2.5M +47,076 New
Acadian Asset Management
95
Acadian Asset Management
Massachusetts
$1.78M +$1.8M +33,821 +290%
EI
96
EAM Investors
California
$1.73M +$2.33M +43,874 New
Canada Life
97
Canada Life
Manitoba, Canada
$1.71M -$85.5K -1,610 -4%
Lazard Asset Management
98
Lazard Asset Management
New York
$1.69M +$2.28M +43,034 New
EGM
99
Engineers Gate Manager
New York
$1.69M +$2.28M +42,941 New
Focus Partners Wealth
100
Focus Partners Wealth
Massachusetts
$1.66M -$7.38K -139 -0.3%
2 3
4
5 6

ACMR Hedge Fund Activity: Q1 2026 in Review

300 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in ACM Research (ACMR) for Q1 2026, worth a combined $1.74B — down 2.3% from $1.79B a quarter earlier.

Buyers outnumbered sellers: 74 funds opened new ACMR positions and 44 closed out — a net gain of 30 holders — while 81 added to existing stakes and 105 trimmed.

The largest buyer was WCM Investment Management, adding an estimated $98.2M. The largest seller was LSV Asset Management, cutting an estimated $97.4M.

  • 300 institutional investors held ACM Research (ACMR) as of Q1 2026, up from 277 in Q4 2025.
  • Funds reported $1.74B of ACM Research stock for Q1 2026, down 2.3% quarter-over-quarter.
  • 74 funds opened new ACM Research positions in Q1 2026 and 44 closed out, a net change of +30 holders.
  • The largest ACM Research buyer in Q1 2026 was WCM Investment Management, an estimated $98.2M added.
  • The largest ACM Research seller in Q1 2026 was LSV Asset Management, an estimated $97.4M sold.

Based on aggregated 13F filings for Q1 2026.