|
Closing price on 5/6/2010
|
|
| Open |
36.10 |
| High |
38.60 |
| Low |
36.00 |
| Volume |
33,000 |
| Split-adjusted Price |
6.20 |
|
|
PSC Historical Quote
|
Date
|
Change
|
Open
|
High
|
Low
|
Close
|
Average
|
Adjusted Close
|
Volume
|
|
|
5/6/2010
|
+1.60 / +4.32%
|
36.10
|
38.60
|
36.00
|
38.60
|
37.92
|
6.20
|
33,000
|
|
|
5/5/2010
|
+0.80 / +2.21%
|
37.00
|
37.50
|
35.00
|
37.00
|
36.11
|
5.95
|
89,200
|
|
|
5/4/2010
|
+2.30 / +6.78%
|
36.20
|
36.20
|
36.00
|
36.20
|
36.15
|
5.82
|
78,400
|
|
|
4/29/2010
|
+2.00 / +6.27%
|
33.80
|
33.90
|
33.80
|
33.90
|
33.90
|
5.45
|
36,500
|
|
|
4/28/2010
|
+1.90 / +6.33%
|
30.50
|
31.90
|
29.90
|
31.90
|
31.71
|
5.13
|
62,800
|
|
|
4/27/2010
|
+0.50 / +1.69%
|
30.00
|
30.00
|
29.20
|
30.00
|
29.87
|
4.82
|
20,400
|
|
|
4/26/2010
|
-0.60 / -1.99%
|
31.00
|
31.00
|
29.40
|
29.50
|
29.51
|
4.74
|
5,100
|
|
|
4/22/2010
|
-0.40 / -1.31%
|
30.10
|
31.50
|
30.10
|
30.10
|
30.48
|
4.84
|
3,700
|
|
|
4/21/2010
|
+0.80 / +2.69%
|
30.40
|
30.50
|
29.50
|
30.50
|
30.06
|
4.90
|
27,300
|
|
|
4/20/2010
|
-1.20 / -3.88%
|
31.80
|
31.80
|
29.30
|
29.70
|
29.48
|
4.77
|
17,100
|
|
|
4/19/2010
|
+0.40 / +1.31%
|
31.50
|
31.90
|
30.80
|
30.90
|
31.53
|
4.96
|
33,000
|
|
|
4/16/2010
|
+1.20 / +4.10%
|
30.50
|
30.60
|
30.00
|
30.50
|
30.45
|
4.90
|
14,500
|
|
|
4/15/2010
|
+1.80 / +6.55%
|
29.00
|
29.30
|
27.80
|
29.30
|
28.61
|
4.71
|
32,500
|
|
|
4/14/2010
|
-0.90 / -3.17%
|
28.70
|
28.70
|
26.80
|
27.50
|
27.36
|
4.42
|
35,000
|
|
|
4/13/2010
|
-3.10 / -9.84%
|
30.40
|
30.40
|
28.40
|
28.40
|
28.75
|
4.56
|
15,700
|
|
|
4/12/2010
|
-0.20 / -0.63%
|
32.60
|
32.70
|
29.40
|
31.50
|
30.49
|
5.06
|
21,300
|
|
|
4/9/2010
|
+0.40 / +1.28%
|
32.80
|
32.80
|
30.90
|
31.70
|
31.64
|
5.09
|
32,500
|
|
|
4/8/2010
|
+2.30 / +7.93%
|
30.00
|
31.30
|
29.30
|
31.30
|
30.94
|
5.03
|
46,400
|
|
|
4/7/2010
|
-1.60 / -5.23%
|
30.00
|
30.00
|
29.00
|
29.00
|
29.32
|
4.66
|
9,500
|
|
|
4/6/2010
|
-0.50 / -1.61%
|
30.70
|
31.50
|
30.60
|
30.60
|
30.75
|
4.92
|
11,800
|
|
|
4/5/2010
|
+2.10 / +7.24%
|
29.10
|
31.10
|
29.10
|
31.10
|
30.81
|
5.00
|
46,200
|
|
|
4/2/2010
|
-0.80 / -2.68%
|
29.90
|
30.90
|
29.00
|
29.00
|
29.08
|
4.66
|
20,300
|
|
|
4/1/2010
|
+0.60 / +2.05%
|
29.80
|
29.80
|
29.80
|
29.80
|
29.80
|
4.79
|
500
|
|
|
3/31/2010
|
+0.20 / +0.69%
|
29.90
|
29.90
|
29.20
|
29.20
|
29.28
|
4.69
|
6,600
|
|
|
3/30/2010
|
-0.40 / -1.36%
|
29.00
|
29.40
|
29.00
|
29.00
|
29.21
|
4.66
|
18,200
|
|
|
3/29/2010
|
0.00 / 0.00%
|
29.40
|
29.40
|
29.40
|
29.40
|
29.40
|
4.72
|
0
|
|
|
3/26/2010
|
-0.10 / -0.34%
|
29.40
|
29.40
|
29.40
|
29.40
|
29.40
|
4.72
|
0
|
|
|
3/25/2010
|
+0.70 / +2.43%
|
29.00
|
29.50
|
29.00
|
29.50
|
29.40
|
4.74
|
500
|
|
|
3/24/2010
|
-0.20 / -0.69%
|
27.50
|
28.80
|
27.50
|
28.80
|
28.58
|
4.63
|
600
|
|
|
3/23/2010
|
+0.20 / +0.69%
|
29.00
|
29.00
|
29.00
|
29.00
|
29.00
|
4.66
|
400
|
|
|