Berkshire Hathaway bought up more VeriSign shares as the final days of 2024 ticked away. Warren Buffett’s company paid $15.6 million from Dec. 26 through Monday for 76,487 more shares of VeriSign, a provider of internet domain-name registry services.

Don't expect Warren Buffett to predict which stocks in Berkshire Hathaway's portfolio will be the biggest winners in 2025. He would be the first to tell you he doesn't know how any given stock will perform over the next 12 months.

VeriSign is ranked 5th in the S&P 500 for the highest profit margin, at about 56%, tied with Nvidia, according to third-quarter financial data.