ACMR INST-CLUSTER SEC Filing Analysis

Latest settled — T+5d

ACMR ▲ +4.90% at T+5d

NEUTRAL call ✓ call won +4.90% · α vs SPY +4.46% · entry $91.70 → $96.19

Next anchor: T+20d in 21d

Entry anchored
Jun 10, 03:59 PM ET
via Databento tick

T+1d

+2.45%

call +2.45% · α +1.91%

$93.95

settled 7d ago

T+5d

+4.90%

call +4.90% · α +4.46%

$96.19

settled 21h ago

T+20d

—

call — · α —

—

in 21d

T+60d

—

call — · α —

—

in 3mo

Executive Summary

Four mega-passive institutional investors (BlackRock, State Street, Fidelity, Morgan Stanley) collectively added $260.9M to their ACMR positions in Q3 2025, bringing total disclosed holdings to $418.8M. This is driven by passive index rebalancing rather than active stock-picking, reducing its signal value despite the large dollar amounts.

Key Financial Metrics

Direction

accumulating

Buy Value

$418.8M

Net Flow

$260.9M

Institutional Positions

Net institutional flow: $260.9M

▲ Buyers (4)

Institution	Action	Change	Position Value	Value Δ
BlackRock	ADD	+84.8%	$296.9M	$190.6M
State Street	ADD	+58.6%	$77.9M	$45.4M
Fidelity	ADD	+35.5%	$9.7M	$5.0M
Morgan Stanley	ADD	+58.9%	$34.3M	$20.0M

Actionable Insight

The buying cluster is entirely passive/index-driven, offering little stock-specific insight. Given the 45-day reporting lag, these flows are likely already reflected in the stock price. Focus on upcoming earnings or active institutional filings for real conviction signals.

Key Facts

4 passive funds added shares; 0 sellers
BlackRock added 3.48M shares (+84.8%), worth +$190.6M
State Street added 735.6K shares (+58.6%), worth +$45.4M
Fidelity added 65.0K shares (+35.5%), worth +$5.0M
Morgan Stanley added 325.2K shares (+58.9%), worth +$20.0M
Total net buyer value increase: $260.9M

Financial Impact

4 passive funds accumulated $418.8M in total positions, a net increase of $260.9M from prior quarter.

institutional ownership

Risk Factors

Passive buying does not indicate fundamental conviction; stock may lack active catalyst.
Stale data: positions are as of Sep 30, 2025; fund allocation may have already reversed.

Market Snapshot

Exchange

Nasdaq

Sector

Special Industry Machinery, NEC

Analyst Consensus

86% bullish (14 analysts)

Documents Analyzed

This report is based on 1 institutional 13F filing from SEC EDGAR.

Document	Accession Number
INST-CLUSTER Data (Synthetic)	inst-cluster-ACMR-2025-Q3

17 reports for ACMR

T+1T+5T+20T+60

71% Hit rate 5 of 7 directional calls best @ T+20▲ +62.43%Apr 27, 2026

Filters

Reports for ACMR — sortable, filterable
	Type				Now
Jun 11, 2026 7d ago	Institutional Cluster NEUTRAL ★ 2/10	$91.70 $96.19	▲ +4.90%	▲ +4.46%	—
Jun 6, 2026 13d ago	Insider Cluster NEUTRAL ★ 2/10	$80.57 $95.21	▲ +18.17%	▲ +16.06%	—
May 29, 2026 20d ago	8-K MIXED ★ 5/10	$82.05 $76.29	▼ −7.02%	▼ −4.27%	—
May 22, 2026 27d ago	8-K NEUTRAL ★ 3/10	$73.35 $82.05	▲ +11.86%	▲ +10.18%	—
May 15, 2026 4w ago	8-K MIXED ★ 5/10	$63.25 $86.46	▲ +36.70%	▲ +35.08%	—
May 12, 2026 5w ago	424B5 BEARISH ★ 6/10	$64.75 $66.45	▼ −2.63%	▼ −3.78%	—
May 12, 2026 5w ago	8-K BEARISH ★ 5/10	$62.99 $63.25	▼ −0.41%	▼ −0.34%	—
May 7, 2026 6w ago	8-K MIXED ★ 5/10	$59.20 $64.75	▲ +9.38%	▲ +7.87%	—
Apr 27, 2026 7w ago	8-K BULLISH ★ 8/10	$53.23 $51.23	▼ −3.76%	▼ −4.16%	—
Apr 27, 2026 7w ago	Press Release BULLISH ★ 7/10	$53.23 $51.23	▼ −3.76%	▼ −4.16%	—

US Market Status

Market Closed — Juneteenth — Opens Mon (76h 15m)

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