Historical Stock Prices

NI 
$17.46
*  
0.34
1.99%
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*Delayed - data as of Jul. 31, 2015  -  Find a broker to begin trading NI now
Exchange: NYSE
Industry: Public Utilities
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Get up to 10 years of daily historical stock prices & volumes.

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Results for: 3 Month, From 30-APR-2015 TO 31-JUL-2015

Date Open High "High" is the highest sales price the stock has achieved during the regular trading hours, the intra-day high. Low "Low" is the lowest sales price the stock has fallen to during the regular trading hours, the intra-day low. Close / Last "Close" is the period at the end of the trading session. Sometimes used to refer to closing price. Volume "Volume" The closing daily official volumes represented graphically for each trading day.
07/31/2015 17.26 17.63 17.23 17.46 6,072,326
07/30/2015 16.96 17.13 16.895 17.12 2,744,870
07/29/2015 17.04 17.16 16.97 17.04 4,476,245
07/28/2015 17.22 17.326 17.165 17.24 4,858,625
07/27/2015 17 17.32 16.99 17.25 4,558,932
07/24/2015 16.55 17.08 16.53 17.03 4,693,677
07/23/2015 16.92 17 16.49 16.54 3,763,020
07/22/2015 16.82 17.04 16.82 16.96 3,501,091
07/21/2015 16.91 16.99 16.78 16.84 3,341,464
07/20/2015 16.9 16.94 16.77 16.91 4,777,358
07/17/2015 17.23 17.27 16.89 16.9 6,035,520
07/16/2015 17 17.34 16.85 17.32 5,929,611
07/15/2015 16.83 16.98 16.61 16.98 4,408,979
07/14/2015 16.9 16.93 16.695 16.78 3,821,523
07/13/2015 17 17.12 16.69 16.91 4,825,156
07/10/2015 16.76 16.96 16.69 16.91 4,268,700
07/09/2015 17.47 17.47 16.75 16.75 6,645,525
07/08/2015 17.09 17.32 16.95 17.14 7,037,833
07/07/2015 16.96 17.14 16.7 17.12 10,865,440
07/06/2015 16.95 17.09 16.65 16.84 11,162,980
07/02/2015 17.61 17.94 16.91 16.99 16,010,300
07/01/2015 17.672 17.7107 17.4395 17.61 3,740,554
06/30/2015 17.672 17.8308 17.6061 17.6642 2,910,080
06/29/2015 17.9393 18.1369 17.7921 17.8037 2,179,037
06/26/2015 18.0285 18.0285 17.8638 17.92 2,947,353
06/25/2015 18.2493 18.2958 17.9897 18.0323 2,130,975
06/24/2015 18.2997 18.3423 18.1408 18.2106 1,898,457
06/23/2015 18.1447 18.6329 18.1447 18.35 2,161,431
06/22/2015 18.7026 18.9506 18.6213 18.7181 2,432,633
06/19/2015 18.7724 18.877 18.6038 18.6174 2,704,422
06/18/2015 18.7569 18.97 18.6949 18.877 3,497,498
06/17/2015 18.0904 19.0475 18.0904 18.753 6,544,893
06/16/2015 17.8928 18.0866 17.8192 18.0827 2,277,698
06/15/2015 17.8231 18.013 17.7069 17.9587 2,622,356
06/12/2015 17.8502 17.951 17.7572 17.8076 1,838,534
06/11/2015 17.7805 17.9665 17.7113 17.9587 2,351,735
06/10/2015 17.579 17.7495 17.517 17.6836 1,426,181
06/09/2015 17.4473 17.5635 17.4201 17.4589 1,056,507
06/08/2015 17.5596 17.6449 17.4279 17.4395 1,729,322
06/05/2015 17.5093 17.5984 17.3465 17.548 1,445,601
06/04/2015 17.7572 17.9161 17.6836 17.6991 1,347,752
06/03/2015 18.0246 18.0866 17.7572 17.8386 1,953,217
06/02/2015 18.1369 18.1447 17.8773 18.0246 1,639,396
06/01/2015 18.2648 18.3733 18.2183 18.2338 1,289,436
05/29/2015 18.3307 18.4159 18.2454 18.2803 1,935,757
05/28/2015 18.1524 18.3694 18.0207 18.35 1,760,478
05/27/2015 18.2377 18.2919 18.104 18.1524 1,854,586
05/26/2015 18.2958 18.3113 18.1563 18.2261 3,047,136
05/22/2015 18.2532 18.4547 18.1369 18.3345 1,987,258
05/21/2015 18.2416 18.3733 18.1098 18.2454 2,310,738
05/20/2015 18.1951 18.5167 18.1447 18.2919 3,744,132
05/19/2015 17.9045 18.2493 17.8773 18.1834 2,618,091
05/18/2015 17.5131 18.0556 17.4744 18.0478 3,878,293
05/15/2015 17.1179 17.6255 17.0792 17.6216 2,882,804
05/14/2015 17.1024 17.3736 17.0676 17.1102 2,776,708
05/13/2015 17.2729 17.3775 16.9746 17.0249 3,202,996
05/12/2015 17.1102 17.2729 16.9862 17.2264 2,855,594
05/11/2015 17.1799 17.4666 17.1102 17.1954 2,633,024
05/08/2015 16.8971 17.2109 16.8777 17.0753 2,608,621
05/07/2015 16.6452 16.777 16.6181 16.6723 1,372,423
05/06/2015 16.7498 16.8235 16.3701 16.6065 2,275,227
05/05/2015 17.0714 17.0986 16.6181 16.7072 1,858,646
05/04/2015 17.0017 17.2845 17.0017 17.1024 1,078,531
05/01/2015 16.8467 17.0133 16.7382 16.9939 2,042,368
04/30/2015 17.0559 17.2419 16.7111 16.8235 2,336,986
*This data reflects the latest intra-day delayed pricing.
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