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Abstract

indicative clearing price and net order imbalance in the NASDAQ execution system. Because the calculation includes non-displayable as well as displayable order types, the net order imbalance indicator (NOII) is the best predictor of the NASDAQ opening and closing prices available to the public. Administrative messages, such trading actions and symbol directory for NASDAQ-listed issues: o o Stock trading action messages are used to inform market participants when a security is halted / paused, released for quotation and released for trading. Stock symbol Directory messages provide basic security data such as the market tier and Financial Status Indicator. NASDAQ NOIView 3.0 will be released in the 1 st Quarter 2014 and will feature the data fee