ACHR Archer Aviation Inc.
Executive Summary
Three mega-passive institutional investors (Vanguard, State Street, Morgan Stanley) collectively added $201M in Archer Aviation shares during Q3 2025, increasing their combined stake to $907.8M. The buying is entirely passive/index-driven, not active conviction, and the stock has declined significantly following prior reports on this ticker.
Key Financial Metrics
Institutional Positions
Net institutional flow: $201.0M
▲ Buyers (3)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Vanguard | ADD | +45.8% | $501.6M | $112.0M |
| State Street | ADD | +40.5% | $282.4M | $54.7M |
| Morgan Stanley | ADD | +56.5% | $123.8M | $34.2M |
Actionable Insight
The buying is entirely passive/index rebalancing with zero active-manager participation, providing no conviction signal. Historical ACHR reports have been consistently wrong (0% T+20 win rate, avg -20.5% return). The stock has been a persistent underperformer regardless of filing content. Monitor for any active manager 13F filings or operational catalysts before considering a position.
Key Facts
- 3 mega-passive institutions added $201M in ACHR during Q3 2025
- Vanguard increased holdings by 45.8% to $501.6M
- State Street increased holdings by 40.5% to $282.4M
- Morgan Stanley increased holdings by 56.5% to $123.8M
- Zero institutional sellers in the cluster
- All three buyers are mega-passive/index funds, not active managers
- Historical reports on ACHR have shown 0% win rate at T+20 with average -20.5% return
Financial Impact
3 institutions accumulated $201M in new ACHR positions during Q3 2025, bringing total tracked holdings to $907.8M
Risk Factors
- All buying is passive/index-driven, not active conviction — signal is weak
- Historical reports on ACHR have 0% win rate at T+20 with severe negative returns
- 13F data is 45+ days stale; positions may have been unwound
- Recent insider selling of $1.2M in past 30 days contradicts institutional buying
Market Snapshot
Documents Analyzed
This report is based on 1 institutional 13F filing from SEC EDGAR.
| Document | Accession Number |
|---|---|
| INST-CLUSTER Data (Synthetic) | inst-cluster-ACHR-2025-Q3 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 11, 2026
3d ago
|
Institutional Cluster
| $5.18 awaiting T+1 | awaiting T+1 | — | — |
|
May 21, 2026
24d ago
|
144
| — | awaiting T+1 | — | — |
|
May 20, 2026
26d ago
|
Insider Cluster
| $5.78 $6.12 | ▼ −5.88% | ▼ −5.69% | — |
|
May 18, 2026
27d ago
|
144
| $3.06 awaiting T+1 | awaiting T+1 | — | — |
|
May 15, 2026
4w ago
|
144
| $3.06 awaiting T+1 | awaiting T+1 | — | — |
|
May 14, 2026
4w ago
|
8-K
| — | awaiting T+1 | — | — |
|
May 14, 2026
4w ago
|
424B5
| — | awaiting T+1 | — | — |
|
May 11, 2026
4w ago
|
8-K
| $3.06 $0.2800 | ▼ −90.85% | ▼ −91.02% | — |
|
Apr 30, 2026
6w ago
|
DEFA14A
| $3.06 $0.2556 | ▼ −91.65% | ▼ −92.46% | — |
|
Mar 13, 2026
13w ago
|
Insider Cluster
| $6.03 $6.12 | ▲ +1.49% | ▲ +0.47% | — |
US Market Status
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