Should You Buy Markel Stock (MKL) on the Dip?

Markel shares are down 13% year-to-date, prompting questions about whether it's a good buying opportunity. While the 'mini-Berkshire' has historically outperformed the S&P 500 (10.9% vs 8.7% annually over 30 years), recent performance has been underwhelming. The author advises caution due to poor underwriting results, vulnerability to stock market swings through its large stock portfolio, and lack of dividend payments.