Southeastern Asset Management is a Memphis-based deep-value firm founded in 1975 by O. Mason Hawkins to exploit the bargains left by the 1973-74 bear market. Its flagship Longleaf Partners Funds (launched 1987) invest employees' own money alongside clients'. Following Graham's discipline and its "Business, People, Price" framework, it runs concentrated books of 15-25 undervalued stocks held for the long term — famously closing funds to new investors when opportunities were scarce. CEO and Head of Research Ross Glotzbach now leads the firm, which publishes quarterly Longleaf fund commentaries and Research Perspectives notes.

This report explains why a value fund called Longleaf Partners made money but lagged behind the market. The reason: today's value indexes are packed with expensive AI, bank, and oil stocks that are no longer cheap. The real bargains are in boring sectors like consumer goods, healthcare, and building materials. The fund manager warns against chasing hot stocks and instead recommends buying companies with solid cash flows at reasonable prices, like Albertsons and Gruma. The message: don't follow the crowd into overpriced stocks; be patient and buy what's truly undervalued.
The report notes that as of April 30, 2026, Longleaf Partners' absolute returns increased but lagged behind value indices. The core argument is that current value indices (such as the Russell 1000 Value) do not represent true value investing, as their recent performance has been primarily driven by
This chapter discusses the phenomenon that, although the Longleaf Partners Fund achieved positive absolute returns in the year ending April 30, 2026, it significantly lagged behind value indices. The report’s core argument is that current value indices (such as the Russell 1000 Value) are no longer true value investments, as their recent performance has been primarily driven by AI-related stocks and speculative assets, rather than fundamentally undervalued stocks.
The report argues that the recent rally in value indices is unsustainable, as its drivers (AI-related stocks, banks, and oil stocks) have valuations far exceeding reasonable value ranges (8-15x FCF), reaching mid-20x P/E or higher. Conversely, truly undervalued sectors (such as Consumer Staples, Healthcare, and Building Products/Real Estate) have underperformed, creating more attractive buying opportunities for investors adhering to the “Business, People, Price” framework. The report explicitly warns against chasing the best-performing components within the index, calling it dangerous.
Value index returns show significant divergence: the Russell 2000 Value led with approximately 45% gains, the Russell 1000 Value rose about 30%, while Longleaf Partners and Peers gained only about 7%
The NTM P/E of the Russell 1000 Value index rose from approximately 16x in April 2025 to about 25x in April 2026, with the top 50 contributors’ valuations increasing from about 19x to roughly 25x
| Company/Asset | Role | Key Data | Bullish/Bearish |
|---|---|---|---|
| FedEx | Top-performing holding | Annualized return +52%, relative to index +33% | Bullish |
| IAC | Neutral-performing holding | Adjusted return +20%, relative to index +1% | Bullish |
| Canal+ | Volatile holding | Absolute return +21%, relative to index -1% | Bullish (added after recent pullback) |
| Gruma | Underperforming holding | Absolute return -1%, relative to index -26%, trades at 10-11x FCF | Bullish |
| Albertsons | Underperforming holding | Absolute return -20%, relative to index -43%, trades at single-digit FCF | Bullish (if reaches 12x FCF, stock doubles) |
| EchoStar | Speculative representative in index | One of the largest contributors to R2KV; the report believes it has overshot | Bearish |
| TTM Technologies | Speculative representative in index | One of the largest contributors to R2KV; the report believes it has overshot | Bearish |
| Berkshire Hathaway | Worst-performing component in index | Ranked last in R1KV contribution | Neutral (as a symbol of “original value stocks”) |