Toss Securities Connected to Bruce ATS Data Feed
The Korean brokerage joined the Bruce Markets network to gain access to overnight U.S. equities market data.
Updated on Oct. 1, 2026 in Investing

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Toss Securities has integrated the market data feed from Bruce Markets to support its overnight U.S. equities trading operations. The connection enables the Korean brokerage to access real-time data for trading occurring between 8:00 PM and 4:00 AM ET.
Why it matters
This integration aims to reduce blind trading risks for customers amidst a growing demand for market structure resilience. The move follows recent market data outages that prompted brokerages to seek more stable data sources.
Bruce ATS volume surged 144% in Q2 2026 to 1.16 billion shares, while notional value rose 105% to $49.03 billion. These gains occurred against a broader market context of 11.14 billion shares traded across three leading ATS platforms.
The players
Toss Securities
This is a licensed brokerage firm based in South Korea.
Bruce Markets
This Chicago-based firm operates an Alternative Trading System for overnight U.S. equities.
Meritz Securities
This is a Korean brokerage that previously integrated the Bruce Markets data feed.
The details
The Chicago-based Bruce Markets venue operates exclusively during overnight hours to facilitate U.S. equities trading for global firms. By connecting to this feed, Toss Securities follows a similar integration path previously taken by Meritz Securities.
Timeline
Q1 2026 served as the baseline period for overnight market growth comparison.
Overnight trading reached 11.14 billion shares during Q2 2026.
Toss Securities announced its connection to the Bruce ATS on October 1, 2026.
Market Landscape
The adoption of the Bruce ATS feed underscores the rapid expansion of overnight U.S. equities trading venues as global brokerages seek to capitalize on extended market hours. This integration mirrors a broader shift where firms are prioritizing data resilience to compete effectively in the overnight space.
Clients of Toss Securities can expect improved access to market data during overnight trading hours, potentially reducing the risks associated with price uncertainty. This move enhances transparency for retail and institutional investors participating in the overnight U.S. equities market.
The takeaway
The expansion of overnight trading infrastructure suggests that brokerages view 24-hour liquidity as a permanent fixture of modern equity markets. Investors should remain mindful that overnight liquidity may vary compared to standard market hours.
Further reading
For additional context on market trends, visit the Investing section.
More information
For more technical specifications on the market data feed, visit the Bruce Markets official website.
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Do you trust that your brokerage has reliable market data during overnight trading hours?










