Capital World Investors

Capital World Investors runs one of the most genuinely active books among the largest 13F filers — just 620 positions managing $732.9 billion, with a whale score of 75.5. Broadcom is the standout conviction holding at 4.91% ($36.0B), well ahead of Meta (3.20%), Microsoft (3.12%) and Nvidia (3.10%); notably, Philip Morris International sits in the top five at 3.01%, an unusual defensive anchor for a book this tech-heavy. The quarter's activity skewed international and defensive: new positions in AstraZeneca (~$5.5B), Southern Co (~$5.4B), Northrop Grumman (~$4.7B) and TotalEnergies (~$4.5B), funded by exits from Alnylam, Thermo Fisher, Capital One and Salesforce.