The divergence between active manager accumulation and the massive Amundi/IMC exits creates an unclear signal. Monitor for any Q3 2026 13F filings that confirm whether the buying cluster persisted or reversed. The stock's poor historical performance at T+20 (avg -16.88%) suggests caution despite the institutional buying thesis.
Executive Summary
CoreWeave (CRWV) saw a significant institutional cluster in Q2 2026, with 37 buyers accumulating $71.8M in positions (net change +$40.7M) against 6 sellers reducing $136.2M. The buying was broad but dominated by asset managers, while the selling was concentrated in a single large exit by Amundi ($111.1M) and a full exit by IMC-Chicago ($21.9M). Despite heavy insider selling over the past 30 days ($8.7M) and a 0% win rate on prior reports at T+20, the institutional buying cluster suggests a contrarian thesis around AI infrastructure demand, though the stock has been a significant underperformer historically.
Key Financial Metrics
Institutional Positions
Net institutional flow: -$95.5M
▲ Buyers (37)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Mirae Asset Global Investments Co. | DOUBLED | +134.4% | $33.9M | $22.6M |
| Swedbank Ab | DOUBLED | +293.2% | $5.3M | $4.2M |
| Wealth Enhancement Advisory Services | ADD | +73.2% | $6.0M | $2.8M |
| Sumitomo Mitsui Ds Asset Management Company | ADD | +81.7% | $4.8M | $2.7M |
| Truist Financial | ADD | +54% | $4.6M | $2.3M |
▼ Sellers (6)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Amundi | TRIM | -56.2% | $254.4M | -$111.1M |
| Imc-Chicago | EXIT | -100% | $21.9M | -$21.9M |
| Vontobel Holding | TRIM | -42.8% | $6.7M | -$1.8M |
| Robeco Institutional Asset Management B.v. | TRIM | -42% | $5.1M | -$1.3M |
| Concurrent Investment Advisors | TRIM | -26.4% | $2.8M | -$151.3K |
Key Facts
- 37 institutional buyers added $40.7M net in Q2 2026, led by Mirae Asset (+$22.6M) and Swedbank (+$4.2M)
- 6 sellers reduced $136.2M, with Amundi exiting $111.1M (56% trim) and IMC-Chicago fully exiting $21.9M
- Top holders BlackRock ($2.4B) and State Street ($703M) were not part of this cluster, indicating the moves were from smaller active managers
- Insider activity over 30 days shows 5 sells totaling $8.7M with zero open-market insider buying, diverging from the institutional accumulation
- Historical reports on CRWV show a 0% win rate at T+20 across 5 settled reports, with average alpha of -16.81% vs SPY
Financial Impact
37 buyers accumulated $71.8M in holdings (net change +$40.7M) while 6 sellers reduced positions by $136.2M, resulting in a net institutional outflow of $95.5M for the quarter
Risk Factors
- Amundi's $111M trim and IMC-Chicago's full exit may signal fundamental concerns not captured by the buying cluster
- Zero insider buying alongside 5 insider sells weakens the conviction of the institutional accumulation
- 45-day 13F reporting lag means positions may have already been unwound; the cluster could be stale
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 institutional 13F filing from SEC EDGAR.
| Document | Accession Number |
|---|---|
| INST-CLUSTER Data (Synthetic) | inst-cluster-CRWV-2026-Q2 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 15, 2026 16d ago | Insider Cluster | $83.35 $86.90 | ▼ −4.26% | ▼ −1.70% | — |
Sep 10, 2026 21d ago | Insider Cluster | $88.99 $81.36 | ▼ −8.57% | ▼ −8.35% | — |
Sep 10, 2026 21d ago | Insider Cluster | $88.99 $81.36 | ▼ −8.57% | ▼ −8.35% | — |
Sep 4, 2026 28d ago | Insider Cluster | $89.36 $82.98 | ▲ +7.14% | ▲ +5.93% | — |
Aug 29, 2026 4w ago | Insider Cluster | $84.89 $102.84 | ▼ −21.14% | ▼ −21.28% | — |
Aug 27, 2026 5w ago | Insider Cluster | $84.23 $89.36 | ▼ −6.09% | ▼ −5.98% | — |
Aug 26, 2026 5w ago | Insider Cluster | $86.80 $84.56 | ▼ −2.58% | ▼ −2.85% | — |
Aug 22, 2026 5w ago | Insider Cluster | $86.25 $84.89 | ▲ +1.58% | ▲ +2.05% | — |
Aug 20, 2026 6w ago | Insider Cluster | $87.85 $84.23 | ▼ −4.12% | ▼ −4.59% | — |
Aug 19, 2026 6w ago | Insider Cluster | $90.87 $88.01 | ▲ +3.15% | ▲ +2.76% | — |
US Market Status
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