Berkshire: 65% of Equity Portfolio in Five Stocks as of Sept 30

The disclosure matters less for the concentration figure itself than for what it confirms: Berkshire's equity exposure remains a handful of mega-cap names, and Alphabet now sits inside that group, a notable addition to a lineup long anchored by Apple, American Express, Bank of America and Coca-Cola. The absence of individual position sizes limits what can be read into the shift, leaving the composition of the Alphabet stake — and whether it grows — as the open question worth watching.