Though down nearly 6% in January, the BioWorld Drug Developers Index (BDDI) rebounded in February, finishing the month with a 4.41% increase and outperforming both the Nasdaq Biotechnology Index (NBI; up 1.33%) and the Dow Jones Industrial Average (DJIA; up 3.47%). In 2023, BDDI concluded the year down 11.35%, trailing behind the NBI and DJIA.