ACM Research
ACMR
376 hedge funds and large institutions have $6.11B invested in ACM Research in 2026 Q2 according to their latest regulatory filings, with 121 funds opening new positions, 126 increasing their positions, 92 reducing their positions, and 40 closing their positions.
262% more call options, than puts
Call options by funds: $510M | Put options by funds: $141M
250% more capital invested
Capital invested by funds: $1.74B → $6.11B (+$4.37B)
203% more first-time investments, than exits
New positions opened: 121 | Existing positions closed: 40
117% more funds holding in top 10
Funds holding in top 10: 6 → 13 (+7)
37% more repeat investments, than reductions
Existing positions increased: 126 | Existing positions reduced: 92
25% more funds holding
Funds holding: 300 → 376 (+76)
6.03% more ownership
Funds ownership: 73.13% → 79.17% (+6%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Capital World Investors
Los Angeles,
California
|
+$170M |
| 2 |
Vanguard Portfolio Management
Malvern,
Pennsylvania
|
+$81M |
| 3 |
WA
WFM Asia
Road Town, Tortola,
British Virgin Islands
|
+$68.5M |
| 4 |
BlackRock
New York
|
+$47.8M |
| 5 |
Fuller & Thaler Asset Management
San Mateo,
California
|
+$45.2M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WCM Investment Management
Laguna Beach,
California
|
-$66.7M |
| 2 |
LP
Longaeva Partners
Chicago,
Illinois
|
-$48.8M |
| 3 |
SAM
Southeastern Asset Management
Memphis,
Tennessee
|
-$45.5M |
| 4 |
LSV Asset Management
Chicago,
Illinois
|
-$37.7M |
| 5 |
Morgan Stanley
New York
|
-$34.8M |
ACMR Hedge Fund Activity: Q2 2026 in Review
376 of the 8,318 institutional investors tracked by Wall St. Rank reported a position in ACM Research (ACMR) for Q2 2026, worth a combined $6.11B — up 250% from $1.74B a quarter earlier.
Buyers outnumbered sellers: 121 funds opened new ACMR positions and 40 closed out — a net gain of 81 holders — while 126 added to existing stakes and 92 trimmed.
The largest buyer was Capital World Investors, opening a new position worth an estimated $170M. The largest seller was WCM Investment Management, cutting an estimated $66.7M.
- 376 institutional investors held ACM Research (ACMR) as of Q2 2026, up from 300 in Q1 2026.
- Funds reported $6.11B of ACM Research stock for Q2 2026, up 250% quarter-over-quarter.
- 121 funds opened new ACM Research positions in Q2 2026 and 40 closed out, a net change of +81 holders.
- The largest ACM Research buyer in Q2 2026 was Capital World Investors, an estimated $170M added.
- The largest ACM Research seller in Q2 2026 was WCM Investment Management, an estimated $66.7M sold.
Based on aggregated 13F filings for Q2 2026.