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US SEC moves to cancel 2005 stock-trading rules aimed at spurring competition

By Neil Roland ( June 11, 2026, 19:37 GMT | Insight) -- The US Securities and Exchange Commission has proposed to eliminate 2005 market-structure rules originally aimed at improving competition among stock markets and orders while serving interests of long-term investors and listed companies. In adopting Regulation NMS, or National Market System, during the second George W. Bush administration, the SEC sought to modernize the stock market and ensure investors got the best possible prices for their trades. Brokers had to send investors’ orders to the exchange offering the lowest price when buying, or the highest price when selling – a requirement known as the National Best Bid and Offer under the Order Protection Rule.The US Securities and Exchange Commission has proposed to eliminate 2005 market-structure rules originally aimed at improving competition among stock markets and orders while serving interests of long-term investors and listed companies....

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