|Jul 27, 2015||54.88||54.99||54.03||54.18||425,425|
|Jul 28, 2015||54.61||54.82||54.10||54.76||622,049|
|Jul 29, 2015||54.96||55.92||54.52||55.84||728,896|
|Jul 30, 2015||55.80||58.18||55.23||58.00||1,833,293|
The historical stock information provided is for informational purposes only and is not intended for trading purposes. The historical stock information is provided by Mergent, a third party service, and Armstrong World Industries Inc does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.