Arch Capital
ACGL
921 hedge funds and large institutions have $31.2B invested in Arch Capital in 2025 Q4 according to their latest regulatory filings, with 163 funds opening new positions, 337 increasing their positions, 315 reducing their positions, and 69 closing their positions.
136% more first-time investments, than exits
New positions opened: 163 | Existing positions closed: 69
40% more call options, than puts
Call options by funds: $34.7M | Put options by funds: $24.8M
17% more funds holding in top 10
Funds holding in top 10: 12 → 14 (+2)
9% more funds holding
Funds holding: 844 → 921 (+77)
5% more capital invested
Capital invested by funds: $29.6B → $31.2B (+$1.58B)
2.22% more ownership
Funds ownership: 87.46% → 89.68% (+2.2%)
7% more repeat investments, than reductions
Existing positions increased: 337 | Existing positions reduced: 315
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AQR Capital Management
Greenwich,
Connecticut
|
+$158M |
| 2 |
FMI
Fiduciary Management Inc
Milwaukee,
Wisconsin
|
+$102M |
| 3 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$98.8M |
| 4 |
Wellington Management Group
Boston,
Massachusetts
|
+$88.3M |
| 5 |
GQG Partners
Ft. Lauderdale,
Florida
|
+$75.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
ECU
Egerton Capital (UK)
London,
United Kingdom
|
-$318M |
| 2 |
First Trust Advisors
Wheaton,
Illinois
|
-$202M |
| 3 |
JP Morgan Chase
New York
|
-$133M |
| 4 |
Manulife (Manufacturers Life Insurance)
Canada,
Ontario, Canada
|
-$131M |
| 5 |
UBS Group
Zurich,
Switzerland
|
-$104M |
ACGL Hedge Fund Activity: Q4 2025 in Review
921 of the 8,266 institutional investors tracked by Wall St. Rank reported a position in Arch Capital (ACGL) for Q4 2025, worth a combined $31.2B — up 5.3% from $29.6B a quarter earlier.
Buyers outnumbered sellers: 163 funds opened new ACGL positions and 69 closed out — a net gain of 94 holders — while 337 added to existing stakes and 315 trimmed.
The largest buyer was AQR Capital Management, adding an estimated $158M. The largest seller was Egerton Capital (UK), exiting entirely with an estimated $318M sold.
- 921 institutional investors held Arch Capital (ACGL) as of Q4 2025, up from 844 in Q3 2025.
- Funds reported $31.2B of Arch Capital stock for Q4 2025, up 5.3% quarter-over-quarter.
- 163 funds opened new Arch Capital positions in Q4 2025 and 69 closed out, a net change of +94 holders.
- The largest Arch Capital buyer in Q4 2025 was AQR Capital Management, an estimated $158M added.
- The largest Arch Capital seller in Q4 2025 was Egerton Capital (UK), an estimated $318M sold.
Based on aggregated 13F filings for Q4 2025.