Toss Securities Connected to Overnight Trading Feed
Korean brokerage integration into the Bruce ATS platform aims to provide investors with improved market data access.
Updated on Oct. 1, 2026 in Investing
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Toss Securities has established a connection to the Bruce ATS market data feed, allowing the Korean brokerage to access data for overnight U.S. equities. This move aims to help investors navigate overnight trading risks by using a feed that operates between 8:00 PM and 4:00 AM ET.
Why it matters
The integration is a response to rising investor demand for market structure resilience and transparency following recent industry-wide data outages. By providing clearer data during the overnight session, the firm seeks to reduce blind trading risks for its customers.
Overnight trading activity reached 11.14 billion shares in Q2 2026 across three major venues, while Bruce ATS specifically saw volume grow by 144% to 1.16 billion shares. This represents a substantial rise from Q1, though the specific impact on individual transaction costs is not yet clear.
The players
Toss Securities
A Korean brokerage firm that provides retail and institutional investors with access to international equity markets.
Bruce Markets
A Chicago-based exchange operator that manages an alternative trading system for overnight U.S. equities.
Meritz Securities
A Korean financial services firm that provides investment banking and brokerage services to its clients.
The details
The Bruce ATS platform facilitates trades in U.S. equities outside of standard exchange hours, specifically from 8:00 PM to 4:00 AM ET. By integrating this feed, Toss Securities gains direct visibility into market movements, helping to mitigate the risks of executing trades with incomplete data. This integration mirrors a similar move by Meritz Securities, reflecting a broader trend of brokers seeking to improve the quality of overnight market execution for their clients.
Timeline
Q1 2026 served as the baseline period for comparing overnight market growth.
Q2 2026 saw overnight trading volume reach 11.14 billion shares.
October 1, 2026, marked the official announcement of the Toss Securities connection.
Money Landscape
This development follows the trend of expanding overnight trading activity among alternative trading systems, which recorded 11.14 billion shares traded in the second quarter of 2026. The move aligns with the broader effort by brokerages to modernize market data access as demand for round-the-clock trading continues to outpace historical norms.
If you trade U.S. equities outside of standard hours, this integration may improve the reliability of the price data available through your brokerage. Consult a qualified financial professional to determine how your specific brokerage handles overnight orders and what data feeds they utilize.
The takeaway
Reliable data is essential when participating in niche trading sessions like the overnight market. Review your brokerage's market data disclosures to ensure you understand which venues they utilize and whether they provide real-time updates for the assets you trade.
Further reading
For more on how shifts in market structure affect your portfolio, see our guide to Investing.
More information
For official data on trading venues, visit the Bruce Markets official website.
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Do you trust that your brokerage has reliable market data during overnight trading hours?
