Acadian Asset Management is an SEC-registered investment adviser based in Boston, MA that reports managing 18 hedge funds on Form ADV. It reports $177.5 billion in regulatory assets under management. Its private funds, of all types, hold $25.7 billion in gross assets. Its disclosed U.S. stock holdings returned an estimated +10.1% 2026 YTD through Jun 30 (S&P 500: +9.5%), based on 13F filings. Over a longer period they returned an estimated +36.6% from Q3 2024 to Q2 2026, compared with +37.2% for the S&P 500, based on 13F filings.
- Regulatory assets under management
- $177.5 billionForm ADV Item 5.F
- Gross assets of private funds
- $25.7 billionAll private fund types, Form ADV
- Hedge funds managed
- 1847 private funds in total
- Employees
- 375Form ADV Item 5.A
- Registration
- SEC-registered adviserCRD 106609
- Latest Form ADV
- 08/10/2026Disciplinary disclosures: none reported
Estimated 13F portfolio performance
Est. 2026 YTD+10.1%Through Q2 2026 · S&P 500 +9.5%
Est. 2-year return+36.6%Q3 2024 – Q2 2026
S&P 500+37.2%Same quarters, price only
13F holdings$84.2 billion1,972 positions, 2026-06-30
| Quarter | Est. 13F return | S&P 500 |
|---|---|---|
| Q2 2026 | +14.5% | +14.8% |
| Q1 2026 | -3.8% | -4.6% |
| Q4 2025 | +1.8% | +2.4% |
| Q3 2025 | +6.5% | +7.8% |
| Q2 2025 | +10.9% | +10.4% |
| Q1 2025 | -2.5% | -4.5% |
| Q4 2024 | +1.1% | +2.1% |
| Q3 2024 | +4.6% | +5.4% |
Estimate of the firm's disclosed long U.S. stock portfolio from its quarterly 13F filings, holding each quarter-end portfolio to the next quarter-end at prices implied by all 13F filers. It is a price return before dividends and fees, ignores shorts, options, bonds, cash and trading within the quarter, and is not the return of any fund. Disclosures
Largest disclosed holdings
- Apple Inc Com$4.6 billion
- Nvidia Corp$3.9 billion
- Alphabet, Inc Voting Class$2.2 billion
- Amazon Com Inc Com$2.0 billion
- Microsoft Corp Com$1.8 billion
- Bank Nova Scotia Halifax$1.6 billion
- Applied Matls Inc Com$1.4 billion
- Micron Technology Inc Com$1.3 billion
- Canadian Imperial Bank Of Co$1.1 billion
- Meta Platforms, Inc.$1.1 billion
As of 2026-06-30, from 13F filing by Acadian Asset Management LLC.
Hedge funds filing Form D (20)
Fund
First sale
Raised
Investors
Minimum
YTD performance
Acadian Non-U.S. Small-Cap Equity Extension Fund, LLC
Boston, MA
First saleOct 2015
Raised$712M
Investors25
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian All Country World Ex U.S. Equity Extension Fund
Boston, MA
First saleApr 2005
Raised$699M
Investors24
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian International Extension Plus Equity Fund
Boston, MA
First saleApr 2005
Raised$600M
Investors20
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Global Equity Extension Fund, LLC
Boston, MA
First saleOct 2024
Raised$576M
Investors8
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Non-U.S. Equity Extension Fund, LLC
Boston, MA
First saleNov 2024
Raised$554M
Investors2
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian All-Country World ex-U.S. Equity Dynamic Extension Fund, LLC
Boston, MA
First saleSep 2025
Raised$321M
Investors16
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Emerging Markets Equity Extension Fund, LLC
Boston, MA
First saleFeb 2025
Raised$278M
Investors11
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Global All-Country ex-U.S. ex-China Equity Dynamic Extension Fund, LLC
Boston, MA
First saleSep 2025
Raised$266M
Investors3
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Global All-Country ex-China Equity Dynamic Extension Fund, LLC
Boston, MA
First saleSep 2025
Raised$150M
Investors2
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Global Equity Absolute Return Fund, LLC
Boston, MA
First saleSep 2005
Raised$136M
Investors48
Minimum$100K
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Global All-Country ex-U.S. ex-China Equity Dynamic Extension Fund
Boston, MA
First saleApr 2026
Raised$125M
Investors1
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian U.S. Equity Extension Tax-Aware Fund, LP
Boston, MA
First saleJun 2026
Raised$85.0M
Investors3
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Non-U.S. Equity Dynamic Extension Fund, LLC
Boston, MA
First saleJun 2026
Raised$80.0M
Investors2
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Emerging Markets Equity Dynamic Extension Fund, LLC
Boston, MAEmerging
First saleJun 2026
Raised$40.0M
Investors2
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Multi-Strategy Fund, LLC
Boston, MAEmerging
First saleNov 2022
Raised$26.2M
Investors26
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Global Developed Equity Dynamic Extension Fund
Boston, MAEmerging
First saleJun 2026
Raised$20.0M
Investors1
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Global Equity Dynamic Extension Tax-Aware Fund, LP
Boston, MAEmerging
First saleMay 2026
Raised$19.0M
Investors20
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian Global All-Country Equity Dynamic Extension Fund, LLC
Boston, MAEmerging
First saleSep 2025
Raised$15.5M
Investors3
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian GP-Equity Fund, LLC
Boston, MA
First saleJan 2020
Raised$4.4M
Investors8
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Acadian U.S. Equity Extension Fund, LLC
Boston, MAEmerging
First saleAug 2025
Raised$1K
Investors1
Minimum$1.0M
YTD performance+10.1%13F est. YTD · thru Q2 2026
Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.
Private funds reported on Form ADV (33)
Fund
Gross assets
Minimum
Owners
Adviser
Acadian International Small Cap Fund a Separate Series of Acadian Investment Funds LLC
Delaware, United StatesPrivate fund
Gross assets$2.3B
Minimum$1.0M
Owners90
AdviserAcadian Asset Management
Acadian Emerging Markets Small Cap Equity Fund LLC
Delaware, United StatesPrivate fund
Gross assets$2.0B
Minimum$1.0M
Owners83
AdviserAcadian Asset Management
Acadian All Country World Ex-Us Fund a Separate Series of Acadian Investment Funds LLC
Delaware, United StatesPrivate fund
Gross assets$1.7B
Minimum$1.0M
Owners36
AdviserAcadian Asset Management
Acadian Emerging Markets Equity II Fund LLC
Delaware, United StatesPrivate fund
Gross assets$1.5B
Minimum$1.0M
Owners44
AdviserAcadian Asset Management
Acadian Emerging Markets Equity Fund a Separate Series of Acadian Investment Funds LLC
Delaware, United StatesPrivate fund
Gross assets$1.5B
Minimum$1.0M
Owners49
AdviserAcadian Asset Management
Acadian Global Managed Volatility Equity Fund, LLC
Delaware, United StatesPrivate fund
Gross assets$1.4B
Minimum$1.0M
Owners61
AdviserAcadian Asset Management
Acadian International All Cap Fund a Separate Series of Acadian Investment Funds LLC
Delaware, United StatesPrivate fund
Gross assets$640M
Minimum$1.0M
Owners22
AdviserAcadian Asset Management
Acadian Non-Us All Cap Equity Fund,usd Hedged,llc
Delaware, United StatesPrivate fund
Gross assets$594M
Minimum$1.0M
Owners23
AdviserAcadian Asset Management
Acadian Non-Us Small Cap Equity Extension Fund LLC
Delaware, United StatesHedge fund
Gross assets$593M
Minimum$1.0M
Owners9
AdviserAcadian Asset Management
Acadian All Country World Ex-Us Small Cap Fund LLC
Delaware, United StatesPrivate fund
Gross assets$435M
Minimum$1.0M
Owners11
AdviserAcadian Asset Management
Acadian US Microcap Equity Fund, LLC
Delaware, United StatesPrivate fund
Gross assets$431M
Minimum$1.0M
Owners18
AdviserAcadian Asset Management
Acadian Non-Us Microcap Equity Fund, LLC
Delaware, United StatesPrivate fund
Gross assets$355M
Minimum$1.0M
Owners20
AdviserAcadian Asset Management
Acadian International Equity Fund
Delaware, United StatesPrivate fund
Gross assets$333M
Minimum$500K
Owners10
AdviserAcadian Asset Management
Acadian Emerging Markets Micro-Cap Equity Master Fund
Cayman IslandsPrivate fund
Gross assets$309M
Minimum$500K
Owners2
AdviserAcadian Asset Management
Acadian Multi-Strategy Master Fund
Cayman IslandsHedge fund
Gross assets$177M
Minimum$1.0M
Owners2
AdviserAcadian Asset Management
Acadian Sustainable Emerging Markets Equity Ex-Fossil Fuel Fund
Delaware, United StatesPrivate fund
Gross assets$141M
Minimum$1.0M
Owners13
AdviserAcadian Asset Management
Acadian Frontier Markets Equity Fund a Separate Series of Acadian Investment Funds LLC
Delaware, United StatesPrivate fund
Gross assets$136M
Minimum$1.0M
Owners15
AdviserAcadian Asset Management
Acadian All Country World Managed Volatility Equity Fund
Delaware, United StatesPrivate fund
Gross assets$135M
Minimum$1.0M
Owners5
AdviserAcadian Asset Management
Acadian Sustainable Global Equity Fund, LLC
Delaware, United StatesPrivate fund
Gross assets$117M
Minimum$1.0M
Owners2
AdviserAcadian Asset Management
Acadian Global Equity Fund Separate Series of Acadian Investment Funds LLC
Delaware, United StatesPrivate fund
Gross assets$85.8M
Minimum$1.0M
Owners5
AdviserAcadian Asset Management
Acadian Emerging Markets Managed Volatility Equity Fund, LLC
Delaware, United StatesPrivate fund
Gross assets$81.6M
Minimum$1.0M
Owners5
AdviserAcadian Asset Management
Acadian Emerging Markets Focused Alpha Equity Fund, LLC
Delaware, United StatesPrivate fund
Gross assets$76.9M
Minimum$1.0M
Owners4
AdviserAcadian Asset Management
Acadian Emerging Markets Ex-China Equity Master Fund
Cayman IslandsPrivate fund
Gross assets$55.6M
Minimum$1.0M
Owners1
AdviserAcadian Asset Management
Acadian U.S. Managed Volatility Equity Fund LLC
Delaware, United StatesPrivate fund
Gross assets$38.2M
Minimum$1.0M
Owners7
AdviserAcadian Asset Management
Acadian Global Equity Absolute Return Fund, LLC
Delaware, United StatesHedge fund
Gross assets$24.1M
Minimum$500K
Owners12
AdviserAcadian Asset Management
Acadian Non-Us Focused Alpha Equity Fund a Separate Series of Acadian Investment Funds LLC
Delaware, United StatesPrivate fund
Gross assets$22.5M
Minimum$1.0M
Owners2
AdviserAcadian Asset Management
Acadian U.S. High Yield Master Fund
Cayman IslandsPrivate fund
Gross assets$15.8M
Minimum$1.0M
Owners1
AdviserAcadian Asset Management
Acadian U.S. Investment Grade Corporate Bond Master Fund
Cayman IslandsPrivate fund
Gross assets$15.3M
Minimum$1.0M
Owners1
AdviserAcadian Asset Management
Acadian All Country World Equity Extension Fund a Separate Series of Acadian Investment Funds LLC
Delaware, United StatesHedge fund
Gross assets$15.2M
Minimum$1.0M
Owners6
AdviserAcadian Asset Management
Acadian International Extension Plus Equity Fund a Separate Series of Acadian Investment Funds LLC
Delaware, United StatesHedge fund
Gross assets$13.7M
Minimum$1.0M
Owners3
AdviserAcadian Asset Management
Acadian U.S. Small-Cap Equity Master Fund
Cayman IslandsPrivate fund
Gross assets$5.7M
Minimum$1.0M
Owners1
AdviserAcadian Asset Management
Acadian Adr Fund LLC
Delaware, United StatesPrivate fund
Gross assets$2.7M
Minimum$1.0M
Owners1
AdviserAcadian Asset Management
Acadian GP Equity Master Fund
Cayman IslandsHedge fund
Gross assets$608K
Minimum$1.0M
Owners1
AdviserAcadian Asset Management
As reported in the adviser's Form ADV filed Nov 25, 2024. Funds also listed from Form D are shown above.
From SEC filings. Firm data comes from the SEC's Form ADV data as of Oct 2, 2026; performance estimates come from Form 13F. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures