We are live on ! Find out more
ACMR icon

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
American Century Companies
51
American Century Companies
Missouri
$5.92M -$76.3K -1,437 -0.9%
RhumbLine Advisers
52
RhumbLine Advisers
Massachusetts
$5.59M +$205K +3,863 +3%
MICM
53
Matthews International Capital Management
California
$5.46M -$2.57M -48,435 -26%
HF
54
HRT Financial
New York
$5.09M +$1.65M +30,988 +32%
Legal & General Group
55
Legal & General Group
United Kingdom
$4.97M -$410K -7,726 -6%
Renaissance Technologies
56
Renaissance Technologies
New York
$4.82M -$97.6K -1,839 -1%
Dodge & Cox
57
Dodge & Cox
California
$4.72M +$398K +7,500 +7%
N
58
Nuveen
North Carolina
$4.4M +$240K +4,527 +4%
Swiss National Bank
59
Swiss National Bank
Switzerland
$4.19M +$84.9K +1,600 +2%
KCM
60
Kennedy Capital Management
Missouri
$4.07M -$1.93M -36,429 -26%
TSW
61
Thompson Siegel & Walmsley
Virginia
$3.98M -$4.64M -87,400 -46%
Franklin Resources
62
Franklin Resources
California
$3.79M +$5.12M +96,422 New
NCM
63
Nearwater Capital Markets
Ireland
$3.71M -$13.6M -256,600 -73%
UBS AM
64
UBS AM
Illinois
$3.63M +$336K +6,327 +7%
Group One Trading
65
Group One Trading
Illinois
$3.6M -$833K -15,686 -15%
RFWA
66
RPg Family Wealth Advisory
Massachusetts
$3.58M -$2.33M -43,890 -33%
SBH
67
Segall Bryant & Hamill
Illinois
$3.46M -$987K -18,591 -17%
SEI Investments
68
SEI Investments
Pennsylvania
$3.34M +$1.41M +26,560 +45%
PCM
69
Portolan Capital Management
Massachusetts
$3.28M -$10.7M -202,250 -71%
KCM
70
Kendall Capital Management
Maryland
$3.27M -$57.9K -1,090 -1%
LPL Financial
71
LPL Financial
California
$3.27M -$1.46M -27,582 -25%
IECM
72
Intrinsic Edge Capital Management
Illinois
$3.15M +$4.25M +80,000 New
Deutsche Bank
73
Deutsche Bank
Germany
$3.14M +$337K +6,351 +9%
YIH
74
Y-Intercept (HK)
Hong Kong
$3M +$4.05M +76,212 New
GGHC
75
Gilder Gagnon Howe & Co
New York
$2.8M +$1.11M +20,877 +41%
1 2
3
4 5

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.