|
Closing price on 8/21/2008
|
|
| Open |
21.30 |
| High |
23.90 |
| Low |
21.30 |
| Volume |
23,100 |
| Split-adjusted Price |
3.43 |
|
|
PSC Historical Quote
|
Date
|
Change
|
Open
|
High
|
Low
|
Close
|
Average
|
Adjusted Close
|
Volume
|
|
|
8/21/2008
|
+1.80 / +8.14%
|
21.30
|
23.90
|
21.30
|
23.90
|
23.47
|
3.43
|
23,100
|
|
|
8/20/2008
|
-1.40 / -5.96%
|
22.50
|
22.50
|
22.10
|
22.10
|
22.37
|
3.17
|
2,100
|
|
|
8/19/2008
|
+1.10 / +4.91%
|
23.90
|
23.90
|
21.10
|
23.50
|
23.71
|
3.37
|
17,700
|
|
|
8/18/2008
|
+1.40 / +6.67%
|
22.40
|
22.40
|
22.40
|
22.40
|
22.40
|
3.21
|
3,400
|
|
|
8/15/2008
|
+0.80 / +3.96%
|
21.00
|
21.00
|
21.00
|
21.00
|
21.00
|
3.01
|
2,000
|
|
|
8/14/2008
|
0.00 / 0.00%
|
20.20
|
20.20
|
20.10
|
20.20
|
20.19
|
2.90
|
8,200
|
|
|
8/13/2008
|
+0.70 / +3.59%
|
19.00
|
20.20
|
18.80
|
20.20
|
19.54
|
2.90
|
7,100
|
|
|
8/12/2008
|
+0.70 / +3.72%
|
19.50
|
19.50
|
19.00
|
19.50
|
19.48
|
2.80
|
4,200
|
|
|
8/11/2008
|
+0.60 / +3.30%
|
18.80
|
18.80
|
18.80
|
18.80
|
18.80
|
2.70
|
1,900
|
|
|
8/8/2008
|
+0.90 / +5.20%
|
17.90
|
18.60
|
17.90
|
18.20
|
18.06
|
2.61
|
2,500
|
|
|
8/7/2008
|
-1.40 / -7.49%
|
18.70
|
18.70
|
17.30
|
17.30
|
17.92
|
2.48
|
2,500
|
|
|
8/6/2008
|
-0.20 / -1.06%
|
17.30
|
18.70
|
17.30
|
18.70
|
18.04
|
2.68
|
1,700
|
|
|
8/5/2008
|
-0.70 / -3.57%
|
18.90
|
18.90
|
18.90
|
18.90
|
18.90
|
2.58
|
600
|
|
|
8/4/2008
|
-1.40 / -6.67%
|
21.00
|
21.00
|
19.50
|
19.60
|
19.61
|
2.68
|
1,600
|
|
|
8/1/2008
|
+0.80 / +3.96%
|
20.00
|
21.00
|
20.00
|
21.00
|
20.21
|
2.87
|
3,400
|
|
|
7/31/2008
|
-0.10 / -0.49%
|
21.00
|
21.00
|
20.20
|
20.20
|
20.81
|
2.76
|
900
|
|
|
7/30/2008
|
+0.10 / +0.50%
|
20.90
|
20.90
|
20.20
|
20.30
|
20.70
|
2.77
|
2,600
|
|
|
7/29/2008
|
-0.90 / -4.27%
|
19.00
|
20.30
|
19.00
|
20.20
|
20.17
|
2.76
|
8,600
|
|
|
7/28/2008
|
+0.80 / +3.94%
|
19.50
|
21.10
|
19.50
|
21.10
|
19.64
|
2.88
|
2,400
|
|
|
7/25/2008
|
-0.80 / -3.79%
|
20.30
|
20.30
|
20.30
|
20.30
|
20.30
|
2.77
|
18,400
|
|
|
7/24/2008
|
-0.80 / -3.65%
|
21.10
|
21.10
|
21.10
|
21.10
|
21.10
|
2.88
|
9,900
|
|
|
7/23/2008
|
-0.90 / -3.95%
|
21.90
|
21.90
|
21.90
|
21.90
|
21.90
|
2.99
|
500
|
|
|
7/22/2008
|
-0.90 / -3.80%
|
22.80
|
22.80
|
22.80
|
22.80
|
22.80
|
3.12
|
600
|
|
|
7/21/2008
|
-0.90 / -3.66%
|
23.70
|
23.70
|
23.70
|
23.70
|
23.70
|
3.24
|
2,000
|
|
|
7/18/2008
|
-1.00 / -3.91%
|
24.60
|
24.60
|
24.60
|
24.60
|
24.60
|
3.36
|
3,200
|
|
|
7/17/2008
|
+0.80 / +3.23%
|
25.60
|
25.60
|
25.60
|
25.60
|
25.60
|
3.50
|
7,100
|
|
|
7/16/2008
|
+0.90 / +3.77%
|
24.80
|
24.80
|
23.90
|
24.80
|
24.74
|
3.39
|
19,500
|
|
|
7/15/2008
|
+0.90 / +3.91%
|
23.90
|
23.90
|
23.90
|
23.90
|
23.90
|
3.27
|
23,900
|
|
|
7/14/2008
|
+0.30 / +1.32%
|
23.00
|
23.00
|
23.00
|
23.00
|
23.00
|
3.14
|
4,500
|
|
|
7/11/2008
|
+1.00 / +4.61%
|
21.10
|
22.70
|
21.10
|
22.70
|
22.20
|
3.10
|
14,900
|
|
|