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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
BBCM
301
Broad Bay Capital Management
New York
– -$25.7M -652,214 Closed
DCM
302
Discovery Capital Management
Connecticut
– -$11.7M -296,200 Closed
YCM
303
Yiheng Capital Management
California
– -$6.88M -174,447 Closed
MAMHA
304
MY.Alpha Management HK Advisors
Hong Kong
– -$4.17M -105,605 Closed
Walleye Trading
305
Walleye Trading
New York
– -$4.63M -87,158 Closed
CC
306
Centiva Capital
New York
– -$3.23M -81,967 Closed
IA
307
Inspire Advisors
Idaho
– -$2.8M -71,067 Closed
Verition Fund Management
308
Verition Fund Management
Connecticut
– -$2.63M -66,652 Closed
AG
309
Algert Global
California
– -$2.62M -66,474 Closed
YRHAM
310
Yong Rong (HK) Asset Management
Hong Kong
– -$2.37M -60,000 Closed
MCM
311
Massar Capital Management
Connecticut
– -$2.14M -54,135 Closed
WAM
312
Weiss Asset Management
Massachusetts
– -$1.94M -49,170 Closed
Teacher Retirement System of Texas
313
Teacher Retirement System of Texas
Texas
– -$1.35M -34,144 Closed
FAMI
314
Fideuram Asset Management (Ireland)
– -$864K -30,975 Closed
D.E. Shaw & Co
315
D.E. Shaw & Co
New York
– -$1.22M -30,839 Closed
FCM
316
FirstWave Capital Management
Florida
– -$1.16M -29,491 Closed
Norges Bank
317
Norges Bank
Norway
– -$1.13M -28,528 Closed
JFG
318
Jefferies Financial Group
New York
– -$1.05M -26,727 Closed
BAM
319
Belpointe Asset Management
Nevada
– -$884K -22,396 Closed
Parallax Volatility Advisers
320
Parallax Volatility Advisers
California
– -$826K -20,937 Closed
NL
321
NKCFO LLC
Illinois
– -$710K -18,000 Closed
WAM
322
Watershed Asset Management
California
– -$428K -10,845 Closed
FGP
323
Freestone Grove Partners
California
– -$401K -10,153 Closed
SC
324
Seldon Capital
California
– -$395K -10,000 Closed
Amundi
325
Amundi
France
– -$388K -9,833 Closed
10 11 12
13
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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.