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 says the 2023 stock market rally is driven by a few mega-cap stocks (huge, trendy companies), similar to the early dot-com bubble. The fund managers avoided those stocks and still beat the market by buying undervalued companies with strong finances. For everyday investors, the lesson is not to chase hot stocks—focus on real value and good management instead. It's worth reading because it shows how to stay calm and profitable when the market gets frothy.
Southeastern (Longleaf Partners) July 2023 Report The fund posted a 5.15% return in the second quarter, bringing its year-to-date gain to 17.42%, outperforming the S&P 500 (16.89%) and the Russell 1000 Value (5.12%). The core thesis is that the market is dominated by a handful of mega-cap growth sto
This chapter is the opening overview of Southeastern (Longleaf Partners Fund)'s second-quarter 2023 report. The report reviews the fund's performance in the first half of 2023 and analyzes the current market environment—where a handful of mega-cap growth stocks dominate, resembling the early stages of the dotcom bubble. The fund returned 5.15% in the second quarter and 17.42% year-to-date (YTD), outperforming the S&P 500 (16.89%) and the Russell 1000 Value (5.12%).
The author's core investment thesis is that the current market is driven by a few mega-cap growth stocks, which have rebounded over 40% from their October 2022 lows but face peaking profit margins, intensifying competition, and regulatory risks, potentially leading to another sharp decline, similar to the post-dotcom bubble trajectory. However, the fund can achieve relative returns without relying on a market correction, as its holdings boast strong balance sheets and pricing power.
Longleaf Partners Fund returned 5.15% in Q2, 17.42% YTD, and 9.34% annualized since inception; over the same period, the S&P 500 returned 8.74% in Q2 and 16.89% YTD
Contrarian/anti-consensus views:
During the 2000-2002 bear market, the NASDAQ Composite fell 35.7% from its peak, briefly rebounded 35.6%, and then declined another 80.4% over the subsequent 25 months
During the 2020-2023 bear market, the NASDAQ Composite fell 35.0% from its peak and had rebounded 42.9% as of June 2023
| Metric | Fund | S&P 500 | Russell 1000 Value |
|---|---|---|---|
| Q2 Return | 5.15% | 8.74% | 4.07% |
| YTD Return | 17.42% | 16.89% | 5.12% |
| 1-Year Return | 7.29% | 19.59% | 11.54% |
| 3-Year Annualized Return | 13.59% | 14.60% | 14.30% |
| 5-Year Annualized Return | 2.86% | 12.31% | 8.11% |
| 10-Year Annualized Return | 5.19% | 12.86% | 9.22% |
| Annualized Return Since Inception | 9.34% | 10.18% | 9.58% |
Among the top five contributors in Q2, Live Nation Entertainment and IAC each led with a contribution of 1.17%, while Fortune Brands contributed 0.70%
Among the top five detractors in Q2, Warner Bros Discovery detracted 1.03%, and Warner Music Group detracted 0.59%