| Daily Price Action: |
| Date |
Open |
High |
Low |
Close |
Volume |
| 2010-03-29 | 33.56 | 33.70 | 33.39 | 33.46 | 88400 |
| 2010-03-26 | 33.22 | 33.70 | 33.01 | 33.56 | 236000 |
| 2010-03-25 | 33.52 | 33.59 | 33.01 | 33.05 | 169300 |
| 2010-03-24 | 33.32 | 33.45 | 33.19 | 33.22 | 101100 |
| 2010-03-23 | 33.15 | 33.59 | 32.98 | 33.51 | 133000 |
| 2010-03-22 | 33.17 | 33.23 | 32.83 | 33.09 | 353900 |
| 2010-03-19 | 33.83 | 33.86 | 33.29 | 33.36 | 328200 |
| 2010-03-18 | 33.83 | 33.98 | 33.69 | 33.86 | 91600 |
| 2010-03-17 | 33.55 | 33.97 | 33.41 | 33.85 | 164800 |
| 2010-03-16 | 33.04 | 33.67 | 32.93 | 33.56 | 176000 |
| 2010-03-15 | 33.41 | 33.55 | 33.27 | 33.39 | 164000 |
| 2010-03-12 | 33.28 | 33.59 | 33.06 | 33.59 | 228000 |
| 2010-03-11 | 32.94 | 33.28 | 32.62 | 33.28 | 119400 |
| 2010-03-10 | 32.75 | 33.18 | 32.75 | 33.18 | 251200 |
| 2010-03-09 | 32.40 | 33.00 | 32.40 | 32.90 | 260800 |
| 2010-03-08 | 32.70 | 32.90 | 32.49 | 32.56 | 138500 |
| 2010-03-05 | 32.58 | 32.93 | 32.51 | 32.81 | 160800 |
| 2010-03-04 | 32.44 | 32.58 | 32.22 | 32.50 | 129200 |
| 2010-03-03 | 32.58 | 32.66 | 32.03 | 32.44 | 278600 |
| 2010-03-02 | 32.25 | 32.55 | 31.95 | 32.55 | 329700 |
| 2010-03-01 | 31.61 | 32.27 | 31.61 | 32.26 | 205200 |
| 2010-02-26 | 31.57 | 31.65 | 31.39 | 31.62 | 179100 |
| 2010-02-25 | 31.33 | 31.67 | 31.22 | 31.66 | 124100 |
| 2010-02-24 | 31.23 | 31.80 | 31.23 | 31.79 | 289900 |
| 2010-02-23 | 31.29 | 31.46 | 31.21 | 31.27 | 285500 |
| 2010-02-22 | 31.51 | 31.51 | 31.34 | 31.44 | 138600 |
| 2010-02-19 | 31.67 | 31.93 | 31.45 | 31.52 | 222400 |
| 2010-02-18 | 31.50 | 32.00 | 31.47 | 31.94 | 385600 |
| 2010-02-17 | 31.00 | 31.49 | 30.99 | 31.49 | 230800 |
| 2010-02-16 | 30.60 | 31.10 | 30.51 | 31.03 | 243700 |
| 2010-02-12 | 30.34 | 30.96 | 30.11 | 30.93 | 639600 |
| 2010-02-11 | 29.95 | 30.69 | 29.66 | 30.69 | 296800 |
|
| Recent Company Events: |
| 12-Jan-10 | National Instruments Earnings Call scheduled for Tue, Jan 26 | | 30-Dec-09 | Price hit new 52-week high ($29.95) | | 23-Dec-09 | Price hit new 52-week high ($29.86) | | 16-Dec-09 | Price hit new 52-week high ($29.80) | | 3-Dec-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Regulation FD Disclosure | | 5-Nov-09 | Ex-Date for dividend payment of $0.12 | | 27-Oct-09 | National Instruments Earnings Call scheduled for 5:00 pm ET today | | 27-Oct-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Results of Operations and Financial Condition | | 8-Sep-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Results of Operations and Financial Condition | | 6-Aug-09 | Ex-Date for dividend payment of $0.12 | | 4-Aug-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 10-Q, Quarterly Report | | 23-Jul-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Results of Operations and Financial Condition | | 9-Jun-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Results of Operations and Financial Condition | | 18-May-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Notice of Delisting or Failure to Satisfy a Continued Listing Rule | | 7-May-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 10-Q, Quarterly Report | | 28-Apr-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Results of Operations and Financial Condition | | 9-Mar-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Results of Operations and Financial Condition | | 9-Mar-09 | Price hit new 52-week low ($15.99) | | 6-Mar-09 | Price hit new 52-week low ($16.19) | | 2-Mar-09 | Price hit new 52-week low ($16.25) | | 27-Feb-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 10-K, Annual Report | | 29-Jan-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Results of Operations and Financial Condition | | 2-Jan-09 | NATIONAL INSTRUMENTS CORP /DE/ Files SEC form 8-K, Results of Operations and Financial Condition |
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