BioWorld stock report for public biotechnology companies.

 BioWorld Stock Report For Public Biotechnology Companies  Company              Symbol   Close   Close         % Change        Vol                               4/21    4/28                        (000)                                                     WK       YTD  Aastrom Biosci       ASTM     1.57    1.5      -4.46%   -28.91%    5521 Acadia               ACAD     15.16   11.57   -23.68%    17.46%    4283 Accelrys             ACCL     7.29    7.04     -3.43%   -12.33%     361 Access Pharma        AKCA     0.26    0.25     -3.85%   -51.92%     257 Acusphere            ACUS     6.37    5.83     -8.48%     9.18%     548 Adolor               ADLR     23      23.52     2.26%    61.10%    3142 Advanced Life Sci    ADLS     3.26    2.92    -10.43%   -25.51%     434 Advancis             AVNC     3.85    3.8      -1.30%   175.36%     570 Aeolus               AOLS     0.75    0.75      0.00%   -21.05%       9 AEterna              AEZS     7.09    7.08     -0.14%    38.82%     274 Affymetrix           AFFX     29.03   28.65    -1.31%   -40.00%    6746 Albany Molecular     AMRI     9.66    10        3.52%   -17.70%     500 Alexion Pharma       ALXN     34.59   33.99    -1.73%    67.85%    1468 Alkermes             ALKS     21.58   21.47    -0.51%    12.29%    6464 Alliance             ALLP     0.3     0.29     -3.33%   222.22%    1124 Allos                ALTH     3.15    3.02     -4.13%    40.47%     321 Alnylam              ALNY     15.51   15.38    -0.84%    15.12%    1057 Alteon               ALT      0.28    0.22    -21.43%    22.22%    2611 Amgen                AMGN     66.82   67.7      1.32%   -14.15%   49224 Amylin               AMLN     47.53   43.55    -8.37%     9.09%   17934 Anadys               ANDS     15.61   13.87   -11.15%    57.61%     881 Antigenics           AGEN     2.21    2.07     -6.33%   -56.51%    1654 Aphton               APHT     0.16    0.17      6.25%   -50.00%     395 Aradigm              ARDM     2.83    2.44    -13.78%   -33.15%     591 Arena                ARNA     15      14.16    -5.60%    -0.35%    2581 Ariad Pharma         ARIA     6.09    5.85     -3.94%     0.00%    2418 ArQule               ARQL     6.14    6.19      0.81%     1.14%     677 Array                ARRY     7.92    7.41     -6.44%     5.71%     952 Aspreva              ASPV     30.73   34       10.64%   116.28%    3235 Atherogenics         AGIX     14.68   14.15    -3.61%   -29.29%    2938 AutoImmune           AIMM     1.4     1.31     -6.43%    42.39%      29 Auxilium             AUXL     8.28    7.2     -13.04%    30.91%     464 Avanir               AVNR     14.12   11.82   -16.29%   -14.10%    2687 Avant Immuno         AVAN     1.92    1.78     -7.29%    -5.32%    1493 Avax Technol         AVXT     0.23    0.23      0.00%    -8.00%     241 AVI BioPharma        AVII     6.77    6.36     -6.06%    84.35%    5069 Avigen               AVGN     6.14    5.79     -5.70%    91.09%     990 Axonyx               AXYX     1.35    1.2     -11.11%    44.58%    3343 BioCryst             BCRX     17.35   15.55   -10.37%    -7.16%    2708 Biogen IDEC          BIIB     44.28   44.85     1.29%    -0.95%   18814 BioMarin             BMRN     12.27   12.3      0.24%    14.10%    4538 Biomira              BIOM     1.24    1.4      12.90%     0.00%    5439 Biopure              BPUR     1.38    1.24    -10.14%    58.97%    3735 Biotime              BTIM     0.33    0.28    -15.15%    -9.68%     158 Boston Life          BLSI     2.58    2.63      1.94%    17.94%      59 Bruker BioSciences   BRKR     5.71    5.85      2.45%    20.37% …