Pacific Edge chief executive David Darling is the first to admit even he didn't envisage his company's product - bladder cancer test Cxbladder - succeeding globally so quickly.

New Zealand shares rose on the first trading day of 2013, following gains on Wall Street, as investors drove up companies that have featured on broker lists for 2013, such as PGG Wrightson and Ryman Healthcare.

Dunedin-based company Pacific Edge says it has been awarded a patent in Singapore for its colorectal cancer prognostic technology.