Closing price on 3/28/2011
|
|
Open |
20.90 |
High |
20.90 |
Low |
20.80 |
Volume |
16,200 |
Split-adjusted Price |
5.03 |
|
|
PSC Historical Quote
Date
|
Change
|
Open
|
High
|
Low
|
Close
|
Average
|
Adjusted Close
|
Volume
|
|
3/28/2011
|
-1.30 / -5.86%
|
20.90
|
20.90
|
20.80
|
20.90
|
20.89
|
5.03
|
16,200
|
|
3/25/2011
|
-1.60 / -6.72%
|
22.20
|
22.30
|
22.20
|
22.20
|
22.21
|
5.34
|
21,500
|
|
3/24/2011
|
-1.70 / -6.67%
|
23.80
|
23.80
|
23.80
|
23.80
|
23.80
|
5.73
|
5,100
|
|
3/23/2011
|
-0.10 / -0.39%
|
25.50
|
25.50
|
25.50
|
25.50
|
25.50
|
6.14
|
0
|
|
3/22/2011
|
-0.50 / -1.92%
|
25.50
|
25.60
|
25.50
|
25.60
|
25.52
|
6.16
|
1,200
|
|
3/21/2011
|
-0.10 / -0.38%
|
26.10
|
26.10
|
26.10
|
26.10
|
26.10
|
6.28
|
0
|
|
3/18/2011
|
+1.70 / +6.94%
|
23.20
|
26.20
|
23.20
|
26.20
|
26.11
|
6.31
|
13,300
|
|
3/17/2011
|
+1.30 / +5.60%
|
24.40
|
24.50
|
24.40
|
24.50
|
24.48
|
5.90
|
4,000
|
|
3/16/2011
|
+1.70 / +7.91%
|
21.70
|
23.20
|
21.50
|
23.20
|
23.04
|
5.58
|
24,500
|
|
3/15/2011
|
-2.30 / -9.66%
|
22.00
|
22.00
|
21.50
|
21.50
|
21.70
|
5.17
|
2,500
|
|
3/14/2011
|
-0.70 / -2.86%
|
22.30
|
23.80
|
22.20
|
23.80
|
22.72
|
5.73
|
4,300
|
|
3/11/2011
|
0.00 / 0.00%
|
24.50
|
24.50
|
22.80
|
24.50
|
23.84
|
5.90
|
4,700
|
|
3/10/2011
|
0.00 / 0.00%
|
24.50
|
24.50
|
24.50
|
24.50
|
24.50
|
5.90
|
0
|
|
3/9/2011
|
0.00 / 0.00%
|
24.50
|
24.50
|
24.50
|
24.50
|
24.50
|
5.90
|
0
|
|
3/8/2011
|
-0.50 / -2.00%
|
24.50
|
24.50
|
24.50
|
24.50
|
24.50
|
5.90
|
0
|
|
3/7/2011
|
+0.50 / +2.04%
|
25.00
|
25.00
|
25.00
|
25.00
|
25.00
|
5.90
|
200
|
|
3/4/2011
|
+0.50 / +2.08%
|
24.50
|
24.50
|
24.50
|
24.50
|
24.50
|
5.78
|
400
|
|
3/3/2011
|
-0.10 / -0.41%
|
24.00
|
24.00
|
24.00
|
24.00
|
24.00
|
5.66
|
1,800
|
|
3/2/2011
|
-1.40 / -5.49%
|
24.10
|
24.10
|
24.10
|
24.10
|
24.10
|
5.68
|
1,500
|
|
3/1/2011
|
-0.80 / -3.04%
|
25.50
|
25.50
|
25.50
|
25.50
|
25.50
|
6.01
|
300
|
|
2/28/2011
|
+0.80 / +3.14%
|
26.30
|
26.30
|
26.30
|
26.30
|
26.30
|
6.20
|
1,800
|
|
2/25/2011
|
-1.10 / -4.14%
|
26.00
|
27.90
|
25.00
|
25.50
|
25.87
|
6.01
|
44,000
|
|
2/24/2011
|
0.00 / 0.00%
|
26.60
|
26.60
|
26.60
|
26.60
|
26.60
|
6.27
|
0
|
|
2/23/2011
|
+1.00 / +3.91%
|
26.60
|
26.60
|
26.60
|
26.60
|
26.60
|
6.27
|
100
|
|
2/22/2011
|
0.00 / 0.00%
|
25.60
|
25.60
|
25.60
|
25.60
|
25.60
|
6.04
|
0
|
|
2/21/2011
|
-0.10 / -0.39%
|
25.60
|
25.60
|
25.60
|
25.60
|
25.60
|
6.04
|
1,000
|
|
2/18/2011
|
-0.40 / -1.53%
|
25.60
|
25.70
|
25.60
|
25.70
|
25.64
|
6.06
|
1,400
|
|
2/17/2011
|
+0.20 / +0.77%
|
26.10
|
26.10
|
26.10
|
26.10
|
26.10
|
6.16
|
100
|
|
2/16/2011
|
-0.60 / -2.26%
|
27.00
|
27.10
|
25.90
|
25.90
|
26.39
|
6.11
|
26,200
|
|
2/15/2011
|
-1.80 / -6.36%
|
26.50
|
26.50
|
26.50
|
26.50
|
26.50
|
6.25
|
0
|
|
|