From dabblers to day traders, individual investors' impact on Wall Street grows
By ALEX VEIGA
These investors, also known as retail investors, accounted for $5.4 trillion in trading activity in 2025 across stocks and exchange-traded funds, or ETFs, according to Vanda, an independent data and research firm. That's a nearly 47% increase from the previous year and the most going back to at least 2014.