UBS analyst Saul Martinez downgraded SunTrust Banks (STI) to Neutral while raising his price target for the shares to $71 from $68. The analyst says his Buy thesis no longer holds due to the proposed merger with BB&T (BBT). He believes the probability of deal breakage or a higher competing offer emerging are low. Martinez also raised his price target for BB&T to $55 from $51 and keeps a Neutral rating on the shares. His analysis suggests "meaningful room" for cost saves and "healthy" earnings accretion from the deal, but he believes integration risk is elevated. Further, a notable part of expected earnings accretion in 2020 and 2021 comes from merger accounting, Martinez tells investors in a research note.