Natural Alternatives International Inc. fell 23.9 percent to $7.94.
Zipcar Inc. fell 14.3 percent to $13.84.
Capella Education Co. fell 13.0 percent to $39.44.
Alnylam Pharmaceuticals Inc. fell 11.4 percent to $10.98.
BroadVision Inc. fell 9.5 percent to $33.07.
United Stationers Inc. fell 9.5 percent to $31.28.
Cadiz Inc. fell 9.0 percent to $9.20.
TIB Financial Corp. fell 8.1 percent to $10.44.
Spartan Motors Inc. fell 8.1 percent to $5.87.
Geeknet Inc. fell 8.0 percent to $16.50.
