Berkshire’s Hidden Bet: Doubling Down on a Slumping Homebuilder

While most investors are fleeing housing stocks, Berkshire Hathaway just did the opposite — and the scale of the move is the real story for patient capital.

Berkshire has nearly doubled its stake in Lennar, the nation’s second-largest homebuilder, since the start of July. As of late last week, the conglomerate held roughly 25.9 million shares (common and Class B combined) worth about $2.1 billion, up 93% from the 13.4 million shares disclosed in its mid-August 13F filing. That pushed Berkshire’s ownership to 10.9% of Lennar’s roughly 238 million shares outstanding — crossing the 10% threshold that triggers mandatory “insider” disclosure under SEC rules, meaning any further trades must be reported within two business days instead of waiting for the next quarterly filing. Regulatory filings show Berkshire spent $212.4 million buying shares between September 17 and 21, then added another $136.4 million over the following three trading days. The stock jumped as much as 6.8% on the news and held a 5.2% four-day gain.

This isn’t a small side bet. It’s likely the work of portfolio manager Ted Weschler, and it comes while the broader housing market remains under pressure from elevated mortgage rates and soft new-home sales — exactly the kind of “hated” sector value investors have historically hunted in. Lennar trades well below its highs, and buying into a slumping cyclical business ahead of a recovery is a classic Berkshire playbook: accumulate quality at a discount when sentiment is worst, not when headlines turn positive.

So what for long-term investors: this filing is a visible, dollar-quantified signal that one of the most disciplined capital allocators in the world sees more upside than risk in housing right now, even with rates elevated. It doesn’t mean buy Lennar tomorrow — but it’s a reminder that cyclical sectors trading near multi-year lows can still harbor durable moats (land positions, scale, balance sheet strength) that patient capital is willing to accumulate aggressively while others wait for confirmation. The next full 13F in mid-November will show whether this was an isolated add or the start of a much larger position.