|
Year |
Beginning Price |
Ending Price |
Gain or Loss |
Percent Gain or Loss |
|
1976 |
26.50 |
20.75 |
-5.75 |
-21.70% |
|
1977 |
20.75 |
21.50 |
0.75 |
3.61% |
|
1978 |
21.50 |
30.50 |
9.00 |
41.86% |
|
1979 |
30.50 |
39.25 |
8.75 |
28.69% |
|
1980 |
39.25 |
50.00 |
10.75 |
27.39% |
|
1981 |
50.00 |
61.00 |
11.00 |
22.00% |
|
1982 |
61.00 |
80.50* |
19.50 |
31.97% |
|
1983 |
40.25 |
49.50 |
9.25 |
22.98% |
|
1984 |
49.50 |
51.50 |
2.00 |
4.04% |
|
1985 |
51.50 |
84.50 |
33.00 |
64.08% |
|
1986 |
84.50 |
113.25* |
28.75 |
34.02% |
|
1987 |
37.75 |
44.50 |
6.75 |
17.88% |
|
1988 |
44.50 |
47.25 |
2.75 |
6.18% |
|
1989 |
47.25 |
57.75 |
10.50 |
22.22% |
|
1990 |
57.75 |
58.75 |
1.00 |
1.73% |
|
1991 |
58.75 |
106.00* |
47.25 |
80.43% |
|
1992 |
53.00 |
57.50 |
4.50 |
8.49% |
|
1993 |
57.50 |
48.00 |
-9.50 |
-16.52% |
|
1994 |
48.00 |
33.00 |
-15.00 |
-31.25% |
|
1995 |
33.00 |
49.50 |
16.50 |
50.00% |
|
1996 |
49.50 |
62.4375 |
12.9375 |
26.14% |
|
1997 |
62.4375 |
79.50* |
17.0625 |
27.33% |
|
1998 |
39.75 |
29.375 |
-10.375 |
-26.10% |
|
1999 |
29.375 |
30.0625 |
0.6875 |
2.34% |
|
2000 |
30.0625 |
39.3125 |
9.25 |
30.77% |
|
2001 |
39.3125 |
39.41 |
0.0975 |
0.25% |
|
2002 |
39.41 |
48.70 |
9.29 |
23.57% |
|
2003 |
48.70 |
57.18 |
8.48 |
17.41% |
|
2004 |
57.18 |
60.46 |
3.28 |
5.74% |
|
2005 |
60.46 |
63.29 |
2.83 |
4.68% |
|
2006 |
63.29 |
77.72 |
14.43 |
22.80% |
|
2007 |
77.72 |
109.20* |
31.48 |
40.50% |
|
2008 |
54.60 |
42.24 |
-12.36 |
-22.64% |
|
2009 |
42.24 |
50.55 |
8.31 |
19.67% |
|
2010 |
50.55 |
66.56 |
16.01 |
31.67% |
|
2011 |
66.56 |
62.46 |
-4.10 |
-6.16% |
*The 1982 ending price for Sigma-Aldrich has been adjusted for a 2 for 1 stock split.
*The 1986 ending price for Sigma-Aldrich has been adjusted for a 3 for 1 stock split.
*The 1991 ending price for Sigma-Aldrich has been adjusted for a 2 for 1 stock split.
*The 1997 ending price for Sigma-Aldrich has been adjusted for a 2 for 1 stock split.
*The 2007 ending price for Sigma-Aldrich has been adjusted for a 2 for 1 stock split.