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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
BlackRock
1
BlackRock
New York
$314M +$5.12M +96,367 +1%
VCM
2
Vanguard Capital Management
Pennsylvania
$89.1M +$120M +2,264,337 New
VPM
3
Vanguard Portfolio Management
Pennsylvania
$86.7M +$117M +2,203,831 New
State Street
4
State Street
Massachusetts
$78.9M +$2.55M +48,075 +2%
WCM Investment Management
5
WCM Investment Management
California
$70.6M +$98.2M +1,849,914 +16,879%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$54M +$1.5M +28,328 +2%
Morgan Stanley
7
Morgan Stanley
New York
$46.9M -$10.6M -199,601 -14%
Janus Henderson Group
8
Janus Henderson Group
United Kingdom
$42.7M +$141K +2,652 +0.2%
VARA
9
Value Aligned Research Advisors
New Jersey
$37.6M +$50.7M +955,927 New
PCP
10
Polunin Capital Partners
United Kingdom
$31.8M +$40.5M +763,318 New
Invesco
11
Invesco
Georgia
$31M -$29.5M -555,035 -41%
SAM
12
Southeastern Asset Management
Tennessee
$30.8M -$47.6M -897,281 -53%
Qube Research & Technologies (QRT)
13
Qube Research & Technologies (QRT)
United Kingdom
$28.5M +$30.7M +578,346 +396%
Dimensional Fund Advisors
14
Dimensional Fund Advisors
Texas
$28.3M +$25.8M +485,282 +208%
TCM
15
Tekne Capital Management
New York
$28.1M – – –
LP
16
Longaeva Partners
Illinois
$27.9M +$37.6M +708,379 New
Fidelity Investments
17
Fidelity Investments
Massachusetts
$24.8M -$9.26M -174,422 -22%
Citigroup
18
Citigroup
New York
$24.4M +$30.6M +576,140 +1,317%
WC
19
Wexford Capital
Florida
$23.6M +$14M +264,243 +79%
CC
20
Cederberg Capital
United Kingdom
$23.6M -$5.03M -94,700 -14%
OCMH
21
Oxbow Capital Management (HK)
Hong Kong
$23.5M +$31.7M +596,689 New
Northern Trust
22
Northern Trust
Illinois
$22.1M +$981K +18,476 +3%
Goldman Sachs
23
Goldman Sachs
New York
$21.7M +$10.1M +190,716 +53%
LSV Asset Management
24
LSV Asset Management
Illinois
$21.5M -$97.4M -1,835,214 -77%
Charles Schwab
25
Charles Schwab
California
$18.9M +$153K +2,886 +0.6%
1
2 3 4 5

ACMR Hedge Fund Activity: Q1 2026 in Review

300 of the 8,125 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.