Retail traders make up nearly 25% of the stock market following COVID-driven volatility, Citadel says

· *Retail investors have accounted for as much as 25% of the stock market's activity amid coronavirus-driven volatility, Joe Mecane, head of execution services at Citadel Securities, said Thursday.*
· *By contrast, the group made up just 10% of the market in 2019. It's a proportion that's steadily climbed as brokers have...