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MARSHFIELD ASSOCIATES

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13F Summary

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Marshfield Associates is based out of Washington. Marshfield Associates is a large advisory firm with 4384 clients and discretionary assets under management (AUM) of $7,474,545,945 (Form ADV from 2025-08-14). Their last reported 13F filing for Q3 2025 included $5,778,772,605 in managed 13F securities and a top 10 holdings concentration of 76.54%. Marshfield Associates's largest holding is AutoZone Inc with shares held of 172,332. Whalewisdom has at least 116 13F filings, and 19 13G filings
Business Description
Marshfield Associates, Inc. ("Marshfield") is a Washington, D.C.-based registered investment adviser that has been providing professional investment advisory services to a broad range of institutional and retail clients since 1989. The firm is privately owned by seven individual principals, with Christopher Niemczewski being the only principal owning more than 25% of the firm. As of December 31, 2024, Marshfield manages approximately $7.50 billion in client assets. Of this total, $7.47 billion is managed on a discretionary basis, and $30 million is managed on a non-discretionary basis.
Investment Strategy
Marshfield's primary offering is the Core Value Equity Strategy, founded on the belief that a stock's share price, while eventually aligning with its intrinsic value, routinely over- and under-shoots this value. This creates opportunities to buy below and sell above intrinsic value, stemming from the market's tendency to misjudge short-term events and misunderstand long-term implications of factors like industry structure and corporate culture. As a long-only, value investor, Marshfield's goals are capital preservation and outperformance of the S&P 500 Index over time, achieved through a concentrated portfolio typically holding 16 to 20 individual stocks when fully invested. In addition to the Core Value Equity Strategy, Marshfield offers a Balanced Strategy for clients who request to combine their core equity holdings with an allocation to fixed income securities. Across its strategies, Marshfield focuses on identifying resilient companies with long-term competitive advantages, requiring a margin of safety for new stock purchases and implementing strict price controls for trades. This disciplined approach can result in portfolios holding significant cash when suitable opportunities are not found or price controls are not met, which Marshfield considers integral to its process, despite the potential for relative underperformance during high valuation environments. Investors should note that all investment strategies carry risk, require a long-term perspective, and do not guarantee the achievement of investment objectives.
Owners
  • CHRISTOPHER M. NIEMCZEWSKI REVOCABLE TRUST U/A DTD JUNE 6, 2014 ("CN REVOCABLE TRUST") - SHAREHOLDER
  • MILLER, CAROLYN, SUE - PRINCIPAL
  • NIEMCZEWSKI, CHRISTOPHER, MARTIN - PRINCIPAL AND TRUSTEE OF THE CN REVOCABLE TRUST
  • WALKER, BRIAN, EDWARD - GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER
  • HOFFMANN, ELISE, JORDAN - PRINCIPAL AND TRUSTEE OF THE EH REVOCABLE TRUST
  • VINICK, MELISSA - PRINCIPAL
  • STOTT, WILLIAM, GILMORE - PRINCIPAL
  • GOLDBERG, CHAD, ANDREW - PRINCIPAL AND TRUSTEE OF THE CG REVOCABLE TRUST
  • SMITH, JARRON, HAMPTON - CHIEF OPERATING OFFICER
  • BECKER, JUDITH, GOLDEN - PRINCIPAL
  • Click on the Ownership/Private Fund Data tab for more details.
Known Email Addresses
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Other Contact Information
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2025-09-30

Top Buys (13F)

Name % Change
UNH UnitedHealth Group I 3.15%
PGR Progressive Corp 1.7%
CMI Cummins Inc 1%
ROST Ross Stores, Inc. 0.53%
AZO AutoZone Inc 0.12%

2025-09-30

Top Sells (13F)

Name % Change
STRA Strategic Education 0.79%
BIL State Street SPDR Bl 0.26%
FAST Fastenal Co 0.22%
ORLY O`Reilly Automotive, 0.05%
VGSH Vanguard Short-Term 0.02%

2025-09-30

13F Holdings Summary

Name % of Portfolio
AZO AutoZone Inc 12.79%
ROST Ross Stores, Inc. 10.6%
UNH UnitedHealth Group I 9.64%
CMI Cummins Inc 8.07%
ORLY O`Reilly Automotive, 7.05%

2025-09-30

13F Activity

Market Value $5.78b, Prior: $4.89b
Inflows (Outflows) as % of Total MV +8.2405%
New Purchases 0 stocks
Added To 14 stocks
Sold out of 2 stocks
Reduced holdings in 3 stocks
Top 10 Holdings % 76.54%
Turnover %[1] 10.53%
Turnover Alt %[2] 0.85%
Time Held Top 20 36.0588 quarters
Time Held Top 10 12.8 quarters
Time Held All 37 quarters

[1]: Turnover is calculated by taking the # of new holdings (initial purchases) + the # of positions sold out of (not just reduced) divided by the total # of holdings for the quarter.

[2]: Alt Turnover is calculated by taking either the total MV of new purchases or the MV of securities sold, whichever is less, divided by the total MV of the fund.

2025-09-30

13F Sector Allocation Over Time

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2025-09-30

Analysis

Top 20 equal-weighted holdings. Performance numbers calculated through 2025-09-30

Portfolio Performance