Since the outbreak of the Iran conflict, AMLP has appreciated nicely. The yield has dropped and the ETF has become more volatile, moving closely in tandem with geopolitical tensions in the Strait of Hormuz. Hence, some might assume a wait and see mode to jump back when the dip happens (driven by the eventual deal with Iran).
AMLP: Don't Let The Rally Scare You Off This 7.8% Yielder
Source: Seeking Alpha