Technology firm Cisco Systems and property and casualty insurer Travelers replaced bankrupt car maker General Motors (GM) and banking institution Citigroup.
GM ends an 83-year run as a part of the DJIA.
The owner of brands including Chevrolet and Cadillac filed for government-assisted Chapter 11 bankruptcy protection on 1 June.
Citigroup joined the Dow on 17 March 1994 as Citicorp.
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Travelers merged with Citicorp to form Citigroup in 1998, creating what was then termed a 'financial supermarket'.
Citigroup spun off Travelers in 2002.
The bank, which once traded at more than US$50 a share, received multi-billion dollar bailouts by the United States government during the financial crisis.
It traded at US$3.42 on 8 June.
