Cantor Fitzgerald analyst Steven Halper downgraded Vocera Communications to Neutral from Overweight with a $20 price target, down from $36. The company last night to significantly lowered its 2019 guidance once again due to the complexity of deal size, Halper tells investors in a research note. In addition, management indicated that revenue growth in the next few quarters would be similar to recent growth levels, he adds. The analyst believes this implies that Vocera's 2020 growth will be substantially lower than his previous expectation. As this point, Halper needs to see signs of tangible execution to have a more positive view of the shares.