Chipmakers and other parts suppliers for Apple’s (AAPL) iPhone have enjoyed a stock price lift for much of the past two years. Sector Leaders include three such stocks, all in various stages relative to their respective buy points. Let’s start with Skyworks Solutions (SWKS), which cleared a 102.87 flat-base buy point last month. The stock slipped below the entry June 9, but found support at its 50-day moving average.