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Historic Stock Lookup

Week of September 18, 2017
Date Open High Low Close Volume
Sep 18, 2017 40.73 41.10 40.67 40.99 421,308
Sep 19, 2017 41.01 41.06 40.78 40.97 445,118
Sep 20, 2017 41.00 41.11 40.75 40.95 467,173
Sep 21, 2017 40.88 41.07 40.70 40.84 398,292

Year End Stock Prices

Year end NATI stock price

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 National Instruments does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.