The following publications provide readers with an overview of a business that is worth following. Please note that these write-ups are not stock recommendations but instead serve as a starting point for analysts and others who are interested in a particular business.

For more background on how companies are chosen, please read Selecting Companies to Research. All content is subject to The Rational Walk’s copyright and disclaimer policy.

01/24/2023Daily Journal CorporationBolstered by a large investment portfolio, Charlie Munger is determined to complete the transformation of a small newspaper publisher into a significant software company.PDFExcel
12/21/2022ProgressiveThis profile examines the third largest private passenger auto insurer in the United States with a focus on its rivalry with Berkshire Hathaway’s GEICO subsidiary.PDFExcel
11/26/2022FastenalA profile of a leading industrial distributor with a multi-decade record of strong performance.PDFExcel
10/25/2022CostcoAn examination of Costco’s impressive track record and an assessment of whether future growth prospects are likely to justify today’s lofty valuation.PDFExcel
09/26/2022Union PacificOperating efficiency gains and aggressive repurchases have delivered attractive returns to shareholders over the past decade. Will these trends continue?PDFExcel
09/08/2022George Risk IndustriesA small manufacturer is massively overcapitalized but controlled by the founder’s family. Minority shareholders can go along for the ride but may never see a catalyst.PDFExcel
08/25/2022BNSFA review of Berkshire Hathaway’s twelve years of ownership.PDFExcel
08/16/2022CarMaxCarMax shook up automotive retailing in the 1990s. Will the company face disruption by online competitors in the 2020s?PDFExcel
07/13/2022Tractor SupplyMany affluent Americans are migrating from crowded metropolitan areas to exurbs and rural areas boosting the prospects of companies catering to their needs.PDFExcel
06/30/2022Investors TitleA strong regional title insurer with a fifty-year history.PDFExcel
06/08/2022America’s Car-MartServing the subprime used car market.PDFExcel
05/20/2022DaVitaAn essential provider of dialysis services.PDFExcel
10/21/2011Platinum UnderwritersMining for value in reinsurance.PDF
03/01/2011Berkshire HathawayIn Search of the “Buffett Premium”. A comprehensive 118 page report. PDFExcel
02/28/2010Berkshire HathawayBackground, analysis, and valuationPDF