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 is a quarterly update for Southeastern's small-cap fund. Small-company stocks are currently much cheaper than giant ones, and the fund sees this as a big opportunity. The fund eked out a small gain in Q3, beating the Russell 2000 index (a benchmark for small stocks). Winners included natural gas firm CNX Resources (benefiting from higher energy prices), Boston Beer (strong Twisted Tea sales), and Mattel (thanks to the Barbie movie). Losers included health insurer Oscar, which fell just because early investors sold shares—not because the business worsened. For regular investors, the takeaway is that cheap, well-run small companies might be worth a look, but expect bumps along the way.
Longleaf Partners Small-Cap Fund rose 0.26% in the third quarter of 2023, significantly outperforming the Russell 2000 (-5.13%) and the Russell 2000 Value (-2.96%), standing out in a "risk-off" environment. The fund's P/V ratio is in the low 60% range, with a cash position of 7.7% and holdings in 21
This section reviews the performance and portfolio dynamics of the Longleaf Partners Small-Cap Fund in the third quarter of 2023. The report notes that small-cap stocks continue to fall out of favor, perceived as volatile and cyclical, while a handful of U.S. mega-cap stocks (trading at historical valuation multiples) dominate global markets. This valuation gap has created an opportunity to acquire high-quality small-cap stocks at deep discounts.
The author's core investment argument is that the current valuation gap between small-cap and mega-cap stocks has created a "compelling opportunity" to own high-quality small-cap businesses with strong balance sheets and capable management teams. The fund outperformed the broader market in a "risk-off" environment, validating its strategy of building a "unique, diversified, and relatively defensive" portfolio.
Fund P/V ratio in the low 60% range, cash at 7.7%, and 21 holdings
| Category | Company Name | Quarterly Return (%) | Contribution to Total Portfolio Return (%) | Portfolio Weight (%) |
|---|---|---|---|---|
| Top Five Contributors | CNX Resources | 27 | 1.55 | 6.3 |
| Boston Beer Company | 26 | 1.14 | 4.9 | |
| Mattel | 13 | 0.78 | 6.6 | |
| White Mountains | 8 | 0.51 | 5.0 | |
| Empire State Realty | 8 | 0.50 | 4.7 | |
| Top Five Detractors | Oscar | -31 | -1.98 | 4.9 |
| Westrock Coffee | -19 | -1.18 | 5.7 | |
| Lumen | -33 | -0.68 | 1.2 | |
| Atlanta Braves Holdings | -10 | -0.43 | 4.2 | |
| Masonite | -9 | -0.32 | 3.6 |
Small-cap fund returned 0.26% in Q3, 8.39% year-to-date, and 9.50% annualized since inception, all outperforming the Russell 2000 over the same periods
CNX Resources was the largest contributor in Q3 with a 1.55% contribution, while Oscar Health was the largest detractor with a -1.98% contribution