Shares of Zayo Group (ZAYO) fell by as much as 10% in early trading and remain down roughly 5% near $30.25 at 10:30 am ET. The early weakness has been attributed to unconfirmed speculation that the company has confirmed plans to present at the NAREIT conference in June, according to contacts. A conference confirmation could potentially be viewed as an indicator that the company does not have imminent plans to announce a deal. The Fly has reached out to the company for comment.