|
Closing price on 9/17/2010
|
|
| Open |
26.70 |
| High |
29.30 |
| Low |
26.60 |
| Volume |
70,400 |
| Split-adjusted Price |
6.72 |
|
|
PSC Historical Quote
|
Date
|
Change
|
Open
|
High
|
Low
|
Close
|
Average
|
Adjusted Close
|
Volume
|
|
|
9/17/2010
|
+0.70 / +2.52%
|
26.70
|
29.30
|
26.60
|
28.50
|
27.82
|
6.72
|
70,400
|
|
|
9/16/2010
|
-1.20 / -4.14%
|
27.90
|
28.40
|
27.10
|
27.80
|
27.61
|
6.56
|
90,600
|
|
|
9/15/2010
|
-2.40 / -7.64%
|
29.20
|
29.20
|
29.00
|
29.00
|
29.06
|
6.84
|
11,000
|
|
|
9/14/2010
|
+0.60 / +1.95%
|
28.60
|
31.70
|
28.60
|
31.40
|
31.06
|
7.41
|
75,100
|
|
|
9/13/2010
|
+0.80 / +2.67%
|
32.40
|
32.40
|
29.20
|
30.80
|
30.43
|
7.26
|
98,900
|
|
|
9/10/2010
|
-0.10 / -0.33%
|
31.90
|
31.90
|
29.80
|
30.00
|
30.68
|
7.08
|
136,200
|
|
|
9/9/2010
|
+1.40 / +4.88%
|
28.10
|
30.10
|
28.00
|
30.10
|
29.90
|
7.10
|
172,800
|
|
|
9/8/2010
|
-0.40 / -1.37%
|
28.00
|
28.70
|
27.80
|
28.70
|
28.21
|
6.77
|
70,800
|
|
|
9/7/2010
|
-0.40 / -1.36%
|
28.50
|
29.40
|
28.00
|
29.10
|
28.75
|
6.86
|
120,700
|
|
|
9/6/2010
|
+0.10 / +0.34%
|
29.50
|
29.70
|
28.70
|
29.50
|
29.06
|
6.96
|
64,400
|
|
|
9/1/2010
|
+0.30 / +1.03%
|
29.40
|
29.50
|
29.00
|
29.40
|
29.36
|
6.93
|
57,600
|
|
|
8/31/2010
|
-0.50 / -1.69%
|
30.00
|
30.20
|
28.60
|
29.10
|
29.31
|
6.86
|
49,400
|
|
|
8/30/2010
|
+1.30 / +4.59%
|
29.60
|
29.60
|
27.80
|
29.60
|
28.65
|
6.98
|
255,300
|
|
|
8/27/2010
|
+0.50 / +1.80%
|
26.20
|
28.30
|
26.10
|
28.30
|
27.70
|
6.67
|
113,500
|
|
|
8/26/2010
|
+1.80 / +6.92%
|
28.00
|
28.00
|
26.10
|
27.80
|
26.55
|
6.56
|
39,400
|
|
|
8/25/2010
|
-2.60 / -9.09%
|
26.00
|
27.80
|
25.90
|
26.00
|
26.21
|
6.13
|
97,200
|
|
|
8/24/2010
|
+0.50 / +1.78%
|
27.60
|
28.60
|
27.50
|
28.60
|
27.78
|
6.75
|
179,700
|
|
|
8/23/2010
|
-2.10 / -6.95%
|
30.00
|
30.00
|
28.10
|
28.10
|
29.52
|
6.63
|
51,200
|
|
|
8/20/2010
|
+0.30 / +1.00%
|
29.80
|
30.50
|
29.00
|
30.20
|
29.90
|
7.12
|
166,800
|
|
|
8/19/2010
|
+0.10 / +0.34%
|
29.90
|
30.50
|
29.80
|
29.90
|
29.99
|
7.05
|
103,200
|
|
|
8/18/2010
|
+0.30 / +1.02%
|
29.70
|
31.10
|
29.00
|
29.80
|
29.88
|
7.03
|
103,400
|
|
|
8/17/2010
|
+0.30 / +1.03%
|
30.00
|
30.00
|
28.50
|
29.50
|
29.29
|
6.96
|
56,000
|
|
|
8/16/2010
|
+0.70 / +2.46%
|
29.30
|
29.40
|
29.00
|
29.20
|
29.18
|
6.89
|
115,100
|
|
|
8/13/2010
|
-0.30 / -1.04%
|
28.00
|
28.50
|
26.50
|
28.50
|
27.84
|
6.72
|
100,000
|
|
|
8/12/2010
|
-1.40 / -4.64%
|
30.50
|
30.50
|
27.70
|
28.80
|
28.19
|
6.79
|
53,600
|
|
|
8/11/2010
|
+1.90 / +6.71%
|
30.20
|
30.20
|
28.60
|
30.20
|
29.67
|
7.12
|
142,500
|
|
|
8/10/2010
|
-10.70 / -27.44%
|
28.30
|
28.30
|
28.30
|
28.30
|
28.30
|
6.67
|
4,800
|
|
|
8/9/2010
|
-3.00 / -7.14%
|
39.50
|
39.50
|
38.50
|
39.00
|
38.85
|
6.27
|
30,000
|
|
|
8/6/2010
|
+1.30 / +3.19%
|
39.50
|
42.00
|
38.10
|
42.00
|
40.62
|
6.75
|
146,300
|
|
|
8/5/2010
|
+0.70 / +1.75%
|
38.80
|
40.70
|
38.70
|
40.70
|
40.00
|
6.54
|
71,900
|
|
|