CIK: 0000916542
Total reported value
$70.5B
Reporting period: 2026-03-31 · Number of holdings: 2011
ACADIAN ASSET MANAGEMENT LLC disclosed 2011 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $70.5B and a quarterly turnover rate of 49.4%.
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Acadian Asset Management LLC's disclosed holdings carry a Herfindahl concentration index of 0.012 — mathematically equivalent to about 87 equally-sized positions, well below its 2011 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 4.71), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Trim META
-33.7% -$569.0M
Trim UBS
-81.6% -$641.2M
Trim DB
-73.4% -$619.9M
Add PEP
+384.9% $703.8M
Add AMAT
+770.5% $667.4M
Add CVX
+765.5% $533.7M
Acadian is running a high-turnover momentum capture engine this quarter, actively rebalancing into US mega-cap technology and semiconductor capex leaders while shedding European financials and internet pure-plays. The mandate isn't directional betting; it's systematic factor execution across a 2,011-name universe.
The flows encode a structural shift toward US productivity infrastructure and pricing power, explicitly rotating capital out of regionally exposed Euro-banks and into semiconductor equipment alongside defensive staples. The opposing thesis is that the momentum premium compresses as valuations detach from free cash flow yields and rate volatility triggers a liquidity-driven mean reversion across large-cap growth.
A 2,011-position portfolio masks massive cross-correlation risk within the IT sleeve; when semiconductor pricing cycles peak, the entire momentum core gets dragged down by sheer beta exposure rather than idiosyncratic safety. The strategy’s reliance on continuous rebalancing leaves it vulnerable to bid-ask widening during intraday liquidity vacuums, turning a half-turnover ratio into a persistent drag that widens losses when momentum drivers stall.
Sourced and summarized by AI from public SEC filings, limited to historical activity. Not investment guidance.
Showing top 200 holdings (of 2011 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AAPL | Apple INC | Stock-Tech | 5.52% | +0.63% | +39.90% | |
| 2 | NVDA | Nvidia CORP | Stock-Tech | 4.62% | — | +8.27% | |
| 3 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 3.34% | +0.30% | +38.28% | |
| 4 | MSFT | Microsoft CORP | Stock-Tech | 2.63% | — | +27.00% | |
| 5 | AMZN | Amazon.com INC | Stock-Consumer Disc | 1.81% | -0.04% | +25.68% | |
| 6 | BNS | Bank Of Nova Scotia | Stock-Financials | 1.47% | — | +16.74% | |
| 7 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 1.33% | +0.37% | +75.51% | |
| 8 | JPM | Jpmorgan Chase & Co | Stock-Financials | 1.31% | — | +7.49% | |
| 9 | PEP | Pepsico INC | Stock-Consumer Staples | 1.23% | +0.96% | +384.90% | |
| 10 | AVGO | Broadcom INC | Stock-Tech | 1.20% | — | +29.48% | |
| 11 | BP | Bp Plc-spons Adr | Stock-Energy | 1.19% | +0.60% | +71.83% | |
| 12 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 1.15% | +0.24% | +27.51% | |
| 13 | ASML | ASML Holding N.V. | Stock-Tech | 1.13% | +0.47% | +61.74% | |
| 14 | SU | Suncor Energy INC | Stock-Energy | 1.09% | +0.36% | +17.10% | |
| 15 | META | Meta Platforms Inc-class A | Stock-Comm Services | 1.09% | -1.11% | -33.70% | |
| 16 | AMAT | Applied Materials INC | Stock-Tech | 1.04% | +0.94% | +770.46% | |
| 17 | ERIC | Ericsson (lm) Tel-sp Adr | Stock-Tech | 1.04% | — | -3.61% | |
| 18 | TJX | Tjx Companies INC | Stock-Consumer Disc | 1.04% | +0.38% | +75.05% | |
| 19 | BMY | Bristol-myers Squibb Co | Stock-Healthcare | 1.02% | +0.49% | +99.01% | |
| 20 | BKNG | Booking Holdings INC | Stock-Consumer Disc | 1.01% | — | +31.51% | |
| 21 | KLAC | Kla CORP | Stock-Tech | 0.98% | +0.73% | +277.54% | |
| 22 | CL | Colgate-palmolive Co | Stock-Consumer Staples | 0.96% | +0.55% | +151.37% | |
| 23 | GSK | Gsk Plc-spon Adr | Stock-Healthcare | 0.92% | +0.20% | +31.60% | |
| 24 | CM | Can Imperial Bk Of Commerce | Stock-Financials | 0.92% | +0.57% | +187.40% | |
| 25 | LRCX | Lam Research CORP | Stock-Tech | 0.91% | +0.31% | +41.28% | |
| 26 | MCK | Mckesson CORP | Stock-Healthcare | 0.89% | — | +0.51% | |
| 27 | ABNB | Airbnb Inc-class A | Stock-Consumer Disc | 0.88% | — | +36.89% | |
| 28 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 0.86% | — | +2.38% | |
| 29 | CVX | Chevron CORP | Stock-Energy | 0.83% | +0.75% | +765.47% | |
| 30 | XOM | Exxon Mobil CORP | Stock-Energy | 0.73% | +0.56% | +257.94% | |
| 31 | MU | Micron Technology INC | Stock-Tech | 0.73% | — | -5.91% | |
| 32 | TD | Toronto-dominion Bank | Stock-Financials | 0.72% | -0.63% | -36.96% | |
| 33 | MRK | Merck & Co. INC. | Stock-Healthcare | 0.72% | +0.44% | +163.53% | |
| 34 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.70% | +0.24% | +105.83% | |
| 35 | JNJ | Johnson & Johnson | Stock-Healthcare | 0.66% | — | -11.67% | |
| 36 | AZN | AstraZeneca PLC | Stock-Healthcare | 0.65% | +0.65% | NEW | |
| 37 | ABBV | Abbvie INC | Stock-Healthcare | 0.65% | — | +52.97% | |
| 38 | C | Citigroup INC | Stock-Financials | 0.64% | -0.47% | -31.73% | |
| 39 | LOGI | Logitech International S.A. | Stock-Tech | 0.58% | -0.35% | -16.82% | |
| 40 | TSLA | Tesla INC | Stock-Consumer Disc | 0.56% | — | -0.36% | |
| 41 | BAC | Bank Of America CORP | Stock-Financials | 0.53% | — | +13.61% | |
| 42 | CAH | Cardinal Health INC | Stock-Healthcare | 0.52% | — | +21.41% | |
| 43 | TEL | TE Connectivity plc | Stock-Tech | 0.49% | — | +31.52% | |
| 44 | BCS | Barclays Plc-spons Adr | Stock-Financials | 0.47% | -0.33% | -17.45% | |
| 45 | ABT | Abbott Laboratories | Stock-Healthcare | 0.47% | -0.49% | -31.18% | |
| 46 | SCCO | Southern Copper CORP | Stock-Materials | 0.45% | +0.41% | +1127.20% | |
| 47 | ZM | Zoom Communications INC | Stock-Tech | 0.45% | -0.32% | -27.19% | |
| 48 | EXPE | Expedia Group INC | Stock-Consumer Disc | 0.44% | — | +106.35% | |
| 49 | AU | AngloGold Ashanti plc | Stock-Materials | 0.43% | — | -32.94% | |
| 50 | GS | Goldman Sachs Group INC | Stock-Financials | 0.42% | — | +85.62% |
Performance for Q3 2026
+5.7%
Performance Last 4 Quarters
+22.2%
Based on 81% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 2011 | $70.5B | 49 | |
| 2025-12-31 | 1959 | $60.9B | 38 | |
| 2025-09-30 | 1819 | $57.3B | 63 | |
| 2025-06-30 | 1661 | $48.4B | 0 | |
| 2025-03-31 | 1602 | $35.4B | 100 | |
| 2024-12-31 | 1610 | $34.5B | 0 | |
| 2024-09-30 | 2074 | $32.2B | 0 | |
| 2024-06-30 | 1754 | $32.5B | 0 | |
| 2024-03-31 | 1570 | $28.7B | 0 | |
| 2023-12-31 | 1679 | $25.8B | 0 | |
| 2023-09-30 | 1639 | $23.9B | 0 | |
| 2023-06-30 | 1726 | $24.3B | 0 | |
| 2023-03-31 | 1743 | $22.8B | 0 | |
| 2022-12-31 | 1780 | $20.3B | 0 | |
| 2022-09-30 | 1675 | $18.3B | 0 | |
| 2022-06-30 | 1685 | $19.6B | 0 | |
| 2022-03-31 | 1640 | $24.3B | 0 | |
| 2021-12-31 | 1668 | $26.8B | 0 | |
| 2021-09-30 | 1696 | $26.2B | 0 | |
| 2021-06-30 | 1981 | $26.6B | 100 | |
| 2021-03-31 | 2039 | $25.7B | 41 | |
| 2020-12-31 | 2193 | $25.9B | 34 | |
| 2020-09-30 | 2155 | $23.9B | 40 | |
| 2020-06-30 | 2214 | $23.2B | 48 | |
| 2020-03-31 | 1788 | $17.5B | 38 | |
| 2019-12-31 | 1825 | $22.0B | 45 | |
| 2019-09-30 | 1880 | $23.4B | 42 | |
| 2019-06-30 | 1737 | $20.8B | 41 | |
| 2019-03-31 | 1951 | $23.2B | 32 | |
| 2018-12-31 | 1722 | $20.2B | 42 | |
| 2018-09-30 | 1662 | $24.2B | 35 | |
| 2018-06-30 | 1694 | $23.1B | 35 | |
| 2018-03-31 | 1673 | $23.1B | 35 | |
| 2017-12-31 | 1578 | $23.1B | 35 | |
| 2017-09-30 | 1417 | $22.6B | 35 | |
| 2017-06-30 | 1440 | $22.1B | 36 | |
| 2017-03-31 | 1558 | $21.8B | 36 | |
| 2016-12-31 | 1663 | $20.6B | 40 | |
| 2016-09-30 | 1431 | $20.2B | 39 | |
| 2016-06-30 | 1428 | $19.6B | 44 | |
| 2016-03-31 | 1388 | $19.8B | 39 | |
| 2015-12-31 | 1425 | $19.1B | 43 | |
| 2015-09-30 | 1323 | $18.3B | 46 | |
| 2015-06-30 | 1389 | $20.6B | 35 | |
| 2015-03-31 | 1390 | $21.7B | 37 | |
| 2014-12-31 | 1295 | $22.4B | 40 | |
| 2014-09-30 | 1079 | $20.7B | 43 | |
| 2014-06-30 | 988 | $20.6B | 51 | |
| 2014-03-31 | 986 | $19.1B | 44 | |
| 2013-12-31 | 1062 | $18.0B | 46 | |
| 2013-09-30 | 1005 | $15.4B | 100 | |
| 2013-06-30 | 927 | $14.4B | — |
Acadian Asset Management LLC's most significant position changes for 2026-03-31: New buy: AstraZeneca PLC (AZN); Sold out: Astrazeneca Plc-spons Adr (AZNN); Sold out: Ishares Msci Acwi Ex US ETF (ACWX); Trim: Meta Platforms Inc-class A (META) — shares -33.70%; Trim: UBS Group AG (UBS) — shares -81.64%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | PEP | Pepsico INC | +1% | +384.90% | Add |
| 2 | AMAT | Applied Materials INC | +0.9% | +770.46% | Add |
| 3 | CVX | Chevron CORP | +0.8% | +765.47% | Add |
| 4 | KLAC | Kla CORP | +0.7% | +277.54% | Add |
| 5 | AAPL | Apple INC | +0.6% | +39.90% | Add |
| 6 | BP | Bp Plc-spons Adr | +0.6% | +71.83% | Add |
| 7 | CM | Can Imperial Bk Of Commerce | +0.6% | +187.40% | Add |
| 8 | XOM | Exxon Mobil CORP | +0.6% | +257.94% | Add |
| 9 | CL | Colgate-palmolive Co | +0.6% | +151.37% | Add |
| 10 | BMY | Bristol-myers Squibb Co | +0.5% | +99.01% | Add |
| 11 | ASML | ASML Holding N.V. | +0.5% | +61.74% | Add |
| 12 | MRK | Merck & Co. INC. | +0.4% | +163.53% | Add |
| 13 | SCCO | Southern Copper CORP | +0.4% | +1127.20% | Add |
| 14 | TJX | Tjx Companies INC | +0.4% | +75.05% | Add |
| 15 | GOOG | Alphabet Inc-cl C | +0.4% | +75.51% | Add |
| 16 | SU | Suncor Energy INC | +0.4% | +17.10% | Add |
| 17 | LRCX | Lam Research CORP | +0.3% | +41.28% | Add |
| 18 | GOOGL | Alphabet Inc-cl A | +0.3% | +38.28% | Add |
| 19 | PFE | Pfizer INC | +0.3% | +374.07% | Add |
| 20 | ROST | Ross Stores INC | +0.3% | +162.05% | Add |
| 21 | COST | Costco Wholesale CORP | +0.2% | +27.51% | Add |
| 22 | LLY | Eli Lilly & Co | +0.2% | +105.83% | Add |
| 23 | TER | Teradyne INC | +0.2% | +118.62% | Add |
| 24 | FTI | TechnipFMC plc | +0.2% | +338.08% | Add |
| 25 | PLD | Prologis INC | +0.2% | +160.88% | Add |
| 26 | PBR | Petroleo Brasileiro-spon Adr | +0.2% | +12951.68% | Add |
| 27 | GSK | Gsk Plc-spon Adr | +0.2% | +31.60% | Add |
| 28 | EEM | Ishares Msci Emerging Market | +0.2% | +302.38% | Add |
| 29 | VLO | Valero Energy CORP | +0.2% | +51.79% | Add |
| 30 | AMZN | Amazon.com INC | 0% | +25.68% | Add |
| 31 | BBD | Banco Bradesco-adr | -0.2% | -80.09% | Trim |
| 32 | MDB | Mongodb INC | -0.3% | -56.40% | Trim |
| 33 | ZM | Zoom Communications INC | -0.3% | -27.19% | Trim |
| 34 | BCS | Barclays Plc-spons Adr | -0.3% | -17.45% | Trim |
| 35 | INTU | Intuit INC | -0.3% | -25.60% | Trim |
| 36 | LOGI | Logitech International S.A. | -0.4% | -16.82% | Trim |
| 37 | EA | Electronic Arts INC | -0.4% | -56.79% | Trim |
| 38 | REGN | Regeneron Pharmaceuticals | -0.4% | -66.09% | Trim |
| 39 | INFY | Infosys Ltd-sp Adr | -0.4% | -31.44% | Trim |
| 40 | CMCSA | Comcast Corp-class A | -0.4% | -89.78% | Trim |
| 41 | C | Citigroup INC | -0.5% | -31.73% | Trim |
| 42 | ABT | Abbott Laboratories | -0.5% | -31.18% | Trim |
| 43 | SPOT | Spotify Technology S.A. | -0.5% | -91.62% | Trim |
| 44 | TD | Toronto-dominion Bank | -0.6% | -36.96% | Trim |
| 45 | DB | Deutsche Bank Aktiengesellschaft | -1.1% | -73.40% | Trim |
| 46 | UBS | UBS Group AG | -1.1% | -81.64% | Trim |
| 47 | META | Meta Platforms Inc-class A | -1.1% | -33.70% | Trim |
| 48 | AZN | AstraZeneca PLC | — | NEW | New buy |
| 49 | AZNN | Astrazeneca Plc-spons Adr | — | EXIT | Sold out |
| 50 | ACWX | Ishares Msci Acwi Ex US ETF | — | EXIT | Sold out |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-13 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-10 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-13 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-07 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-21 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-11 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-12 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-06 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-10 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-13 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-13 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-07 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-11 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-14 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-14 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-09 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-12 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-10 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-12 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-11 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-11 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-11 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-09 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-12 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-11 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-06 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-07 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-08 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-09 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-07 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-10-30 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-07-24 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-04-12 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-01-18 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-10-13 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-07-25 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-04-25 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-01-19 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-10-20 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-07-19 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-04-14 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-01-14 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-10-15 | 13F-HR | View on EDGAR |
| 2015-06-30 | 2015-08-11 | 13F-HR | View on EDGAR |
| 2015-03-31 | 2015-04-20 | Amendment | View on EDGAR |
| 2015-03-31 | 2015-04-16 | 13F-HR | View on EDGAR |
| 2014-12-31 | 2015-01-23 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2014-10-22 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-07-21 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-04-22 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-01-22 | 13F-HR | View on EDGAR |
| 2013-09-30 | 2013-10-18 | 13F-HR | View on EDGAR |
| 2013-06-30 | 2013-08-06 | Amendment | View on EDGAR |
| 2013-06-30 | 2013-08-05 | 13F-HR | View on EDGAR |
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