_{"Data As Of" refers to the Closing Sale. Volume is updated throughout the after hours market. 
Note: Daily closing values are valid as of 5:15 p.m. ET. Duplicate values disseminated after 5:15 p.m. ET.} 

_{All Values included in the "Ten Most Active Share Volume" are calculated using the Nasdaq Market Center trades only. The data on this page is updated independently. Please note the time stamps for each section, as they may differ from other sections.}

_{Index Values are updated throughout the day on a real-time basis. Any updates after 5:15 p.m. ET. are duplicates. Nasdaq Market Summary is updated throughout the day on a delayed basis. Block Trade figures are updated once a day (at approx. 8:00 a.m., ET using data from the prior day}. Nasdaq 10 Most Active by Share Volume is updated throughout the day on a delayed basis. Nasdaq 14 Most Active by Dollar Volume is updated throughout the day on a delayed basis.}