AT&T (T) was added to Goldman Sachs' U.S. Conviction List to start the new month. The firm holds a Buy rating and a $31 price target on the telecom giant. In terms of the technical layout for T, Rachel Dashiell cautions of a bearish divergence forming in the RSI as a possible "warning sign" for investors. On a longer-term perspective, she looks at a nearly 20-year range with upwards resistance around the $32 level.