The New York Stock Exchange has filed a proposal that seeks to delay the release of market-moving company news immediately after the official 4 p.m. closing time, MarketWatch reports.

In a letter to the Securities and Exchange Commission, the NYSE said that putting out releases at 4 p.m. can cause a stock to trade at different prices than that of the exchange’s closing auction, which usually happens within five minutes of the close. So-called designated market-makers use a manual closing process, that cannot begin until order-entry acceptance has ended, and the exchange publishes order-imbalance information up to 4 p.m.