How Stocks Nearly Triggered a Market-Wide Trading Freeze Thursday

Dextape brief

By Dextape Desk · November 5, 2026

Thursday saw the S&P 500 slide by up to 3.8%, as chip shares sank. According to the article, a further 3.3% decline would have triggered a circuit breaker that freezes trading in all US stocks for 15 minutes. Thresholds reset daily from Wednesday's close of 7,688.62. Declines of 7%, 13% and 20% set the levels, and the first two halts apply only until 3:25 p.m. Eastern Time. The Philadelphia Semiconductor Index dropped 10.2%. Investors worry growth could slow at facilities that purchase AI processors, a concern that followed Democrats winning Congress on Tuesday. By midday the S&P 500 had climbed back to about 7,400. Such halts were activated four times in March 2020, and researchers still disagree over whether they calm or feed panic.

Why it matters: Circuit breakers show how market-wide trading halts can affect every US stock at once, and experts remain divided on whether they help during sharp selloffs.

Summary by Dextape, based on reporting by BeInCrypto. Written with AI from the publisher’s text and checked automatically for copied wording and unsupported figures. Not investment advice.