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5 min readTapeboard Desk

Trading Halts Today: August 4, 2026 — 45 Stocks Halted (LULD & T1)

Tapeboard tracked 45 trading halts during the August 4, 2026 session, comprising 45 LULD/volatility pauses and 0 T1 news-pending halts, with AMIX triggering the most circuit breakers.

trading-haltsluldmarket-eventsdailyAugust 42026

TL;DR: As of 9:45 PM ET on August 4, 2026, Tapeboard tracked 45 trading halts during the session. The most recent halt was OBX, which triggered a Limit-up/limit-down pause.

On August 4, 2026, Tapeboard logged 45 trading halts across the session, comprising 45 LULD/volatility pauses, 0 T1 news-pending halts, and 0 other regulatory halts. AMIX triggered a circuit breaker repeatedly, dominating the session's volatility pauses with multiple LULD halt events from the opening bell through the close. No T1 halt events were recorded today.

Today's Trading Halt Log

*Source: Tapeboard halt feed, August 4, 2026. Halt codes per FINRA and exchange definitions. Times ET.*

Halt Time (ET)SymbolHalt TypeReason CodeReason
9:31 AMAMIXLULDLUDPLimit-up/limit-down pause
9:32 AMFNGLULDMVolatility pause
9:32 AMVELLLULDMVolatility pause
9:34 AMENTLLULDMVolatility pause
9:34 AMPLTLLULDMVolatility pause
9:34 AMARMWLULDMVolatility pause
9:34 AMCOHCLULDMVolatility pause
9:36 AMARMALULDMVolatility pause
9:36 AMQNMELULDLUDPLimit-up/limit-down pause
9:37 AMASTTLULDMVolatility pause
9:40 AMAMIXLULDLUDPLimit-up/limit-down pause
9:41 AMOBXLULDLUDPLimit-up/limit-down pause
9:43 AMADGMLULDLUDPLimit-up/limit-down pause
9:46 AMJDZGLULDLUDPLimit-up/limit-down pause
9:47 AMFCUVLULDLUDPLimit-up/limit-down pause
9:48 AMCIFCLULDMVolatility pause
9:50 AMBDCXLULDMVolatility pause
9:54 AMADGMLULDLUDPLimit-up/limit-down pause
10:04 AMPLIBLULDMVolatility pause
10:10 AMPLIBLULDMVolatility pause
10:14 AMINTJLULDLUDPLimit-up/limit-down pause
10:54 AMINHDLULDLUDPLimit-up/limit-down pause
11:03 AMTERCLULDMVolatility pause
11:17 AMAMIXLULDLUDPLimit-up/limit-down pause
11:42 AMLASCLULDMVolatility pause
11:48 AMAMIXLULDLUDPLimit-up/limit-down pause
12:40 PMAMIXLULDLUDPLimit-up/limit-down pause
12:47 PMAMIXLULDLUDPLimit-up/limit-down pause
1:03 PMAMIXLULDLUDPLimit-up/limit-down pause
1:10 PMZTGLULDLUDPLimit-up/limit-down pause
1:15 PMAMIXLULDLUDPLimit-up/limit-down pause
1:27 PMZTGLULDLUDPLimit-up/limit-down pause
1:34 PMZTGLULDLUDPLimit-up/limit-down pause
1:54 PMLBGJLULDLUDPLimit-up/limit-down pause
2:21 PMOBXLULDLUDPLimit-up/limit-down pause
2:32 PMRGTCLULDMVolatility pause
2:41 PMOBXLULDLUDPLimit-up/limit-down pause
2:42 PMNSRXLULDMVolatility pause
3:09 PMOBXLULDLUDPLimit-up/limit-down pause
3:28 PMAMIXLULDLUDPLimit-up/limit-down pause
3:33 PMAMIXLULDLUDPLimit-up/limit-down pause
3:40 PMDAAQULULDLUDPLimit-up/limit-down pause
3:44 PMAMIXLULDLUDPLimit-up/limit-down pause
3:47 PMDGZLULDMVolatility pause
3:56 PMOBXLULDLUDPLimit-up/limit-down pause

Halt-by-Halt Summary

The most notable halt activity of the session centered on AMIX, which triggered a circuit breaker ten separate times between 9:31 AM ET and 3:44 PM ET under LUDP codes. All of today's halts were LULD or volatility pauses, with no T1 news-pending or regulatory halts recorded. OBX also saw repeated LUDP pauses, including a 35-minute extended pause at 9:41 AM ET that lasted until 10:16 AM ET.

What Is an LULD Halt?

A Limit Up-Limit Down LULD halt pauses trading when a stock's price moves more than a defined percentage away from its recent five-minute average. The bands are 5% for most large-cap S&P 500 names, 10% for smaller stocks, and 20% for stocks under $3. Most LULD halts last five minutes.

What Does a T1 Halt Mean?

A T1 halt is a regulatory pause pending the release of material news. It has no fixed duration and resumes when the exchange determines an orderly market can be maintained.

Halt Code Reference

CodeNameDescription
T1News pendingTrading paused pending the release of material news from the issuer.
T2News releasedThe news has been released; the exchange is assessing market conditions.
T12Additional information requestedThe exchange has requested more information from the issuer.
M / LUDPLULD volatility haltA volatility pause triggered when price moves outside LULD price bands.
H10 / H11Regulatory / SECSEC or regulatory halt or suspension.
T6Extraordinary market activityHalt due to unusual market activity that warrants further review.

How to Track Halts in Real Time

Tapeboard surfaces halt alerts in the live scanner as they are issued.

Frequently Asked Questions

Where can I see today's trading halts?

Tapeboard publishes a daily trading-halt log at tapeboard.com, updated through the trading day with halt codes, timestamps, and resumption status.

What is an LULD halt?

A Limit Up-Limit Down halt pauses trading when a stock's price moves more than a defined percentage away from its recent five-minute average. The bands are 5% for most large-cap S&P 500 names, 10% for smaller stocks, and 20% for stocks under $3. Most LULD halts last five minutes.

How long does a trading halt last?

LULD halts are typically five minutes; T1 news halts often run 30+ minutes; regulatory T12 halts can extend for days.

Data and Methodology

Halt records are sourced from Tapeboard's real-time regulatory halt feed (NYSE/NASDAQ exchange halt notifications); publication may lag actual events by several minutes. A halted name often appears on the short-squeeze candidates board or the highest borrow-fee list.

Halt data is sourced from Tapeboard's real-time regulatory feed; publication may lag actual events by several minutes. This post is for informational purposes only and is not trading advice. Tapeboard is not affiliated with FINRA, the SEC, or any national securities exchange. Editor: Marcus Reilly.