Company

Closing

% Change

52-Week

52-Week

Exchange

Name

Price (11/15)

For the Week

High

Low

Publicly traded companies headquartered in Howard County

Columbia Bancorp

20.90

-3.8

23.74

13.65

NYSE

Corporate Office Properties

13.74

1.9

14.69

11.15

NYSE

Corvis Corp.

0.67

-5.6

3.90

0.47

Nasdaq

Duratek Inc.

7.02

-1.0

7.75

2.77

Nasdaq

GSE Systems Inc.

1.03

-45.8

4.00

1.51

AMEX

Martek Biosciences Corp.

17.23

4.3

34.25

12.50

Nasdaq

Meridian Medical Tech.

44.09

NC

44.28

16.30

Nasdaq

Micros Systems Inc.

22.11

4.3

30.78

18.32

Nasdaq

Rouse Co.

30.00

-0.1

33.50

27.25

NYSE

RWD Tech. Inc.

1.70

-2.9

4.35

1.40

Nasdaq

W.R. Grace

1.65

5.8

3.99

0.95

NYSE

Publicly traded companies with operations in Howard County

Arbitron Inc.

31.73

-1.9

37.99

28.55

NYSE

Ciena Corp.

4.64

16.3

21.71

2.41

Nasdaq

F&M Bancorp

33.80

5.8

35.67

25.05

Nasdaq

Ryland Group

37.92

2.4

58.87

27.35

NYSE

Sandy Spring Bancorp

31.95

-0.3

36.00

25.60

Nasdaq