Bernstein said in a note Monday its positive thesis on Apple Inc. AAPL 0.09% is predicated on two beliefs, namely that the iPhone Xsuper-cycle will prompt iPhone unit growth in 2018 and that Apple will enjoy strong ASP growth. As such, Bernstein has an Outperform rating and a $175 price target on the shares of the company. Analyst Toni Sacconaghi models iPhone ASP of $773 in fiscal-year 2018, or $786, including the positive benefit from currency, with the estimate derived using product mix numbers from the firm's survey of 1,100 iPhone users. The analyst said the mix of iPhone X is by far the biggest driver of ASP improvement. Read moreThe price has a chance to break out the rising channel and form some downside. $AAPL, Apple Inc. / D