Market regulation · 04/10/2011Updated: 10/17/2026 · 1 min read
National Stock Exchange, Inc. Filing Proposed Rule Change to Revise Market Volatility Halt Methodology
Summary
The National Stock Exchange, Inc. has filed a proposed rule change to revise its methodology for determining when to halt trading in all stocks due to extraordinary market volatility, as part of its ongoing efforts to enhance market stability and protect investors.