Charles Schwab Corp. announced it has expanded its overnight trading offerings to include more than 1,100 securities available for trading 24 hours a day, five days a week through its thinkorswim platform suite.

The expansion adds primarily exchange-traded funds to the company's extended overnight session orders, which expire at 8 p.m. ET each market day. Schwab said the additions were made in response to client demand and align with its criteria for overnight trading.

The company previously expanded its overnight trading list in February to include S&P 500 and Nasdaq-100 stocks plus hundreds of ETFs, following a pilot program in fall 2024. Ameritrade, acquired by Schwab in 2020, first introduced 24/5 trading to U.S. retail investors in 2018 with approximately 24 ETFs.

Schwab reported $10.76 trillion in total client assets and facilitated 7.6 million daily average trades in the second quarter of 2025. Since launching expanded overnight trading in February, thousands of clients have traded in overnight sessions for the first time each week.

The most traded securities during overnight sessions since February have been Tesla Inc. (NASDAQ: TSLA), NVIDIA Corp. (NASDAQ: NVDA), and Nio Inc. (NYSE: NIO). Other frequently traded symbols include Microsoft Corp., Apple Inc., Amazon.com Inc., and Advanced Micro Devices Inc., often following earnings reports.

Trading volume during overnight sessions has correlated with major news events. Record overnight trading volume occurred on June 12, with more than twice the average nightly volume, which Schwab attributed to reports of escalating Middle East tensions.

"Trading behavior in the overnight session looks a lot like trading behavior during standard market hours," said James Kostulias, managing director and head of trading services at Charles Schwab.

International clients have shown higher engagement with overnight trading compared to domestic clients, the company said.