This stock currently has a good balance of risk and potential rewards.With its shares skyrocketing by upwards of 74% on Oct. 16, Wave Life Sciences (WVE -1.08%) is now on the map of many investors. Per an update from one of its early-stage clinical trials, it just marked a first-in-humans scientific milestone. That cleared the way for its stock to continue gaining value as the biotech builds on its preliminary results.So what exactly did this company accomplish, and how important is it going to be in the lo ...