Shares of world's largest brewer AB InBev tumble 9% on declining volumes
1. AB InBev shares fell up to 11% due to volume declines. 2. Quarterly volumes for BUD dropped 1.9%, exceeding analyst predictions. 3. Volume decline was most significant in China and Brazil. 4. Despite volume drops, operating profit increased by 6.5%. 5. U.S. sales rose, contributing to a 3% revenue increase.