Upcoming catalyst could cause these shares to double. See:
http://www.benzinga.com/pressreleases/12/12/tr3182627/arqule-arql-poised-for-a-quick-move-up-on-near-term-catalyst
http://www.benzinga.com/pressreleases/12/12/tr3182627/arqule-arql-poised-for-a-quick-move-up-on-near-term-catalyst