Well, here is some confirmation:
So which stocks are moving the Dow now? Currently, the biggest components of the Dow are Boeing (NYSE:BA); Goldman Sachs (NYSE:GS); 3M (NYSE: MMM); United Health (NYSE:UNH); McDonald's (NYSE: MCD) and Apple (Nasdaq:AAPL). The current rise is being fueled by Boeing and McDonald's. As Alex Schiffer of the Washington Post so clearly pointed out — Boeing accounted for 56 percent of the July increase and McDonald's was responsible for 23 percent. Furthermore, Apple surprised most of Wall Street with powerful quarterly results.
[source : Don't confuse Dow Jones records for overall economic prosperity, The Hill, http://thehill.com/blogs/pundits-blog/finance/345136-dont-confuse-dow-jones-records-for-overall-economic-prosperity, 3rd August 2017]