The New York Stock Exchange will pay a $9 million civil penalty to settle a US Securities and Exchange Commission case. The case relates to a January 2023 systems failure that disrupted the opening of trading in thousands of stocks. The failure prevented standard opening auctions in 2,824 NYSE-listed securities. That error led to trading halts, canceled trades, and further scrutiny of the exchange’s market controls. SEC Action Follows January 2023 Market Opening Error The SEC, as per Bloomberg, said the issue began during planned overnight maintenance on January 23, 2023. NYSE staff activated a disaster-recovery backup system and left it running by mistake. According to the SEC order, that backup system later sent zero quotes in 2,824 stocks. Those quotes incorrectly showed that the securities had already opened for trading. When markets opened on January 24, the primary system treated those stocks as cleared for continuous trading. As a result, NYSE skipped the opening auction process in those names. The opening auction usually helps set a fair starting price for trading. Without it, some stocks opened at prices that did not reflect broader market activity. While the SEC case centers on a 2023 systems failure, it lands at a time when the exchange group is also expanding its digital market plans. As we reported, the New York Stock Exchange is planning to launch a tokenization platform for continuous trading and on-chain settlement of US-listed stocks and ETFs, pending regulatory approval. Thousands of Stocks Opened Without Standard Auctions At the time, NYSE had 3,421 listed securities eligible for opening auctions. The failure affected more than two-thirds of those names. The SEC said the error caused market-wide trading pauses in dozens of stocks. It also led to sharp early price moves in several securities. For 84 securities, trading hit limit up-limit down bands soon after the open. Those controls are designed to pause trading during sudden price swings. The regulator said thousands of transactions later had to be broken. Reports tied to the event said more than 4,000 trades were canceled after the disruption. The SEC wrote that “NYSE failed to run opening auctions for thousands of NYSE-listed securities due to a critical systems disruption.” The order also said the event caused “market-wide trading pauses in dozens of securities and, ultimately, thousands of busted trades.” SEC Says NYSE Failed to Follow Market Rules The SEC issued a cease-and-desist order against the exchange. It said NYSE violated Regulation SCI, which governs key trading infrastructure. The regulator also said NYSE failed to follow its own rules. Those rules require opening auctions before core trading begins in listed securities. According to the order, NYSE lacked written procedures needed to monitor systems supporting the opening auction process. The SEC said that gap contributed to the failure. The case adds another compliance cost for the exchange. Beyond the $9 million penalty, NYSE paid more than $5.77 million to member firms that reported trading losses. That brings the known direct cost of the event to about $14.77 million. The total reflects the civil penalty and compensation tied to the disrupted session. Exchange adds safeguards after enforcement action NYSE has already introduced added safeguards after the event. The exchange said it improved monitoring tied to opening auction functions. The SEC said those steps include tools that confirm auction processes have actually run across NYSE-listed securities. Concurrently, the NYSE also tightened controls around overrides of failed system checks. In addition, the exchange changed how its Pillar platform validates that an auction occurred. That step now comes before a stock can move into regular trading. These changes aim to reduce the risk of a repeat failure during the market open. They also form part of the response that followed one of the exchange’s most visible systems errors in recent years.
