The step, which had been widely expected, is a reminder of the soaring valuations among consumer-driven technology and social media companies like Google, Facebook and Twitter, to name a few. Among the current DJIA constituents, AT&T has one of the lowest prices. [...] the DJIA is overweighted in telecommunications. [...] he added, Apple’s stock split last year “brought the stock price down closer to the median price” in the Dow.