ACGL — ARCH CAPITAL GROUP LTD.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Measured signals that fired on ACGL
| date | signal | measured base rate |
|---|---|---|
| 2026-07-06 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-02 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-05-28 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-04-30 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-04-30 | Bollinger bandwidth breaks out of its own compression structure | -0.63% over 21 days · t = -2.80 · n = 7,196 statistically distinguishable from its control group |
| 2026-03-12 | Cluster sale: three or more insiders insider | -0.37% over 21 days · t = -3.38 · n = 21,542 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-18 | Morin Francois CFO and Treasurer | Open-market sale | 11.0K | 99.32 | 1.1M |
| 2026-08-18 | Morin Francois CFO and Treasurer | Option exercise | 11.0K | 27.09 | 298.2K |
| 2026-06-11 | PASQUESI JOHN M Director | Gift | 1.0M | 0.00 | 0 |
| 2026-06-11 | PASQUESI JOHN M Director | Gift | 1.0M | 0.00 | 0 |
| 2026-06-03 | Posner Brian S Director | Open-market sale | 3.0K | 19.66 | 59.0K |
| 2026-05-11 | Posner Brian S Director | Open-market sale | 2.0K | 17.14 | 34.3K |
| 2026-05-05 | PASQUESI JOHN M Director | Grant or award | 1.3K | — | — |
| 2026-05-05 | PASQUESI JOHN M Director | Grant or award | 2.1K | — | — |
| 2026-05-05 | BUNCE JOHN L JR Director | Grant or award | 1.3K | — | — |
| 2026-05-05 | BUNCE JOHN L JR Director | Grant or award | 2.1K | — | — |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 3.0B | 31.4M |
| Artisan Partners Limited Partnership | 2.2B | 22.7M |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.2B | 22.6M |
| BAMCO INC /NY/ | 1.6B | 16.7M |
| STATE STREET CORP | 1.6B | 16.3M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.4B | 14.7M |
| WCM INVESTMENT MANAGEMENT, LLC | 1.2B | 12.6M |
| GEODE CAPITAL MANAGEMENT, LLC | 1.0B | 10.6M |
| JPMORGAN CHASE & CO | 648.5M | 6.8M |
| NORTHERN TRUST CORP | 429.3M | 4.5M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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