the company 2019s stock performance the following graph compares cumulative total return of the company 2019s common stock with the cumulative total return of ( i ) the nasdaq stock market-united states , and ( ii ) the nasdaq biotechnology index . the graph assumes ( a ) $ 100 was invested on july 31 , 2001 in each of the company 2019s common stock , the stocks comprising the nasdaq stock market-united states and the stocks comprising the nasdaq biotechnology index , and ( b ) the reinvestment of dividends . comparison of 65 month cumulative total return* among alexion pharmaceuticals , inc. , the nasdaq composite index and the nasdaq biotechnology index alexion pharmaceuticals , inc . nasdaq composite nasdaq biotechnology .
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7/02 7/03 7/04 7/05 12/05 12/06 12/07
Alexion Pharmaceuticals, Inc. 100.00 108.38 102.64 167.89 130.56 260.41 483.75
NASDAQ Composite 100.00 128.98 142.51 164.85 168.24 187.43 204.78
NASDAQ Biotechnology 100.00 149.29 146.51 176.75 186.10 183.89 187.04
7/02 7/03 7/04 7/05 12/05 12/06 12/07
alexion pharmaceuticals inc . 100.00 108.38 102.64 167.89 130.56 260.41 483.75
nasdaq composite 100.00 128.98 142.51 164.85 168.24 187.43 204.78
nasdaq biotechnology 100.00 149.29 146.51 176.75 186.10 183.89 187.04
what is the percent change in the investment into alexion pharmaceuticals between 7/02 and 7/03?