The Mac and iPhone/iPad maker (NASDAQ: AAPL) will become one of The Dow's 30 blue chip companies after trading closes on March 18.
The company's share price was more than $128 as of this writing. A 7-for-1 share split by Apple last year and a more recent 4-for-1 split by Visa enabled the Dow to let Apple in with messing up its delicate balance.
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Other tech heavyweights on the bellwether index include Cisco, IBM, Intel and Microsoft.
And as Dow Jones notes in its press release about the Apple-for-AT&T swap: "The Telecommunication Services sector will continue to be represented in the DJIA by Verizon Communications Inc."
There's an "ouch" for AT&T. Though at least the carrier does get to sell iPhones for use on its network.
Meanwhile, Apple's next big financial milestone: The $1 trillion mark Activist investor Carl Icahn thinks so.