The official cutoff time for submitting MarketOnClose (MOC) and LimitOnClose (LOC) orders to the NASDAQ closing auction is 3:50pm ET. For the NYSE and NYSE Amex closing auctions, the official cutoff time is 3:45pm ET. For the NYSE Arca closing auction, the official cutoff time is 3:59pm ET. With the exception of orders that are submitted to offset published imbalances, all MOC and LOC orders must be submitted before each market center’s official cutoff time.
