The BioWorld Drug Developers Index (BDDI) outpaced both the Nasdaq Biotechnology Index and the Dow Jones Industrial Average throughout the first four months of 2026. Starting the year in step with the broader indices, the BDDI pulled ahead steadily – climbing 4.41% year-to-date through January, 6.42% through February and 7.73% through March, before finishing April up 10.69% for the year.