Symbol Lookup
SUPERTEX INC Add to My Watchlist (NSDQ: SUPX) 
     Supertex 23.70 +0.74 (+3.22%) 224,625
Historical Data for SUPX
Date Open High Low Volume Close Change %
02/09/10 23.09 23.79 22.78 224,625 23.70 +0.74   +3.22%
02/08/10 22.60 23.20 22.23 71,354 22.96 +0.28   +1.23%
02/05/10 22.63 23.02 22.11 189,074 22.68 +0.04   +0.18%
02/04/10 23.80 23.82 22.64 121,834 22.64 -1.38   -5.75%
02/03/10 24.01 24.19 23.48 95,516 24.02 -0.13   -0.54%
02/02/10 24.27 24.52 23.58 124,162 24.15 -0.18   -0.74%
02/01/10 23.96 24.41 23.90 64,993 24.33 +0.38   +1.59%
01/29/10 24.48 24.66 23.42 129,335 23.95 -0.54   -2.20%
01/28/10 25.52 25.52 24.36 141,095 24.49 -0.97   -3.81%
01/27/10 25.02 25.46 24.61 39,439 25.46 +0.42   +1.68%
01/26/10 25.02 25.30 24.78 115,848 25.04 +0.07   +0.28%
01/25/10 25.07 25.14 24.40 148,047 24.97 +0.18   +0.73%
01/22/10 25.35 25.59 24.75 197,963 24.79 -0.69   -2.71%
01/21/10 26.21 26.69 25.35 319,372 25.48 -0.53   -2.04%
01/20/10 25.46 27.49 25.03 438,564 26.01 -2.58   -9.02%
01/19/10 27.69 28.84 27.62 206,042 28.59 +0.97   +3.51%
01/18/10 27.62 27.62 27.62 0 27.62 0.00   0.00%
01/15/10 28.45 28.45 26.84 105,093 27.62 -0.75   -2.64%
01/14/10 28.49 28.75 28.15 58,065 28.37 -0.11   -0.39%
01/13/10 28.60 28.79 28.14 48,256 28.48 -0.07   -0.25%
01/12/10 28.55 28.90 27.98 103,666 28.55 -0.21   -0.73%
01/11/10 28.57 29.00 28.08 126,261 28.76 +0.22   +0.77%
01/08/10 27.75 28.56 27.18 126,283 28.54 +0.67   +2.40%
01/07/10 28.14 28.26 27.06 91,213 27.87 -0.32   -1.14%
01/06/10 28.23 28.58 28.01 103,499 28.19 -0.11   -0.39%
01/05/10 28.81 28.81 28.14 81,209 28.30 -0.70   -2.41%
01/04/10 30.07 30.07 28.87 95,069 29.00 -0.80   -2.68%
01/01/10 29.80 29.80 29.80 0 29.80 0.00   0.00%
12/31/09 29.05 30.10 28.99 128,168 29.80 +0.82   +2.83%
12/30/09 28.68 29.10 28.48 96,963 28.98 +0.28   +0.98%
12/29/09 28.32 28.91 28.05 79,737 28.70 +0.51   +1.81%
12/28/09 28.70 28.71 28.04 48,243 28.19 -0.42   -1.47%
12/25/09 28.70 28.75 28.24 16,586 28.61 0.00   0.00%
12/24/09 28.70 28.75 28.24 16,586 28.61 -0.04   -0.14%
12/23/09 28.86 28.99 28.45 46,600 28.65 -0.12   -0.42%
12/22/09 28.91 29.21 28.77 60,430 28.77 -0.13   -0.45%
12/21/09 28.17 29.00 28.02 94,275 28.90 +0.76   +2.70%
12/18/09 28.05 28.41 27.79 149,646 28.14 +0.25   +0.90%
12/17/09 28.54 28.62 27.75 91,736 27.89 -0.70   -2.45%
12/16/09 28.80 29.15 28.59 78,228 28.59 +0.05   +0.18%
12/15/09 28.65 29.16 28.28 231,587 28.54 -0.08   -0.28%
12/14/09 28.23 28.62 27.95 132,653 28.62 +0.61   +2.18%
12/11/09 27.00 28.07 26.83 249,954 28.01 +1.19   +4.44%
12/10/09 26.67 26.85 26.19 148,841 26.82 +0.22   +0.83%
12/09/09 26.31 26.61 25.97 71,011 26.60 +0.23   +0.87%
12/08/09 26.53 26.72 26.14 90,026 26.37 -0.43   -1.60%
12/07/09 26.18 26.83 26.18 101,839 26.80 +0.67   +2.56%
12/04/09 25.99 26.42 25.49 92,897 26.13 +0.55   +2.15%
12/03/09 25.65 26.04 25.43 124,476 25.58 -0.08   -0.31%
12/02/09 24.46 25.72 24.29 212,889 25.66 +1.14   +4.65%
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