The Zhitong Finance App learned that optimism about an experimental breast cancer drug under Roche (RHHBY.US) and encouraging test results drove the company's stock price to its best monthly performance since 1997. Meanwhile, analysts expect that the stock price will still have room to rise.

The Zhitong Finance App learned that optimism about an experimental breast cancer drug under Roche (RHHBY.US) and encouraging test results drove the company's stock price to its best monthly performance since 1997. Meanwhile, analysts expect that the stock price will still have room to rise.