US Wall St 30 is a CFD product offered by OANDA with the Dow Jones Industrial Average (DJIA), also known as the NY Dow, as its underlying reference asset.

The DJIA is composed of 30 selected stocks listed on the New York Stock Exchange and Nasdaq, calculated and published by S&P Dow Jones Indices.

First introduced in 1896, it is one of the oldest and most historic stock index in the world.

Further reading: What are stock market indices? How to invest in them?