S&P 500 Gains and Losses Today: Moderna Falls Despite Approval of New COVID Shot

Key Takeaways The S&P 500 dropped 0.9% on Thursday, Aug. 22, as tech stocks faltered ahead of Fed Chair Jerome Powell's Friday remarks. Moderna shares lost ground even as the biotech firm received approval for its latest COVID-19 vaccine. Nordson shares ticked higher after the industrial machinery provider topped quarterly estimates, boosted by strength in Europe and the Asia-Pacific region. Major U.S. equities indexes fell Thursday as the Jackson Hole Economic Policy Symposium kicked off in Wyoming. Federa ...