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Dow Jones Index Data Set
Download: Data Folder, Data Set Description

Abstract: This dataset contains weekly data for the Dow Jones Industrial Index. It has been used in computational investing research.

Data Set Characteristics:  


Number of Instances:




Attribute Characteristics:

Integer, Real

Number of Attributes:


Date Donated


Associated Tasks:

Classification, Clustering

Missing Values?


Number of Web Hits:



Dr. Michael Brown, michael.brown '@', University of Maryland University College

Data Set Information:

In predicting stock prices you collect data over some period of time - day, week, month, etc. But you cannot take advantage of data from a time period until the next increment of the time period. For example, assume you collect data daily. When Monday is over you have all of the data for that day. However you can invest on Monday, because you don't get the data until the end of the day. You can use the data from Monday to invest on Tuesday.

In our research each record (row) is data for a week. Each record also has the percentage of return that stock has in the following week (percent_change_next_weeks_price). Ideally, you want to determine which stock will produce the greatest rate of return in the following week. This can help you train and test your algorithm.

Some of these attributes might not be use used in your research. They were originally added to our database to perform calculations. (Brown, Pelosi & Dirska, 2013) used percent_change_price, percent_change_volume_over_last_wk, days_to_next_dividend, and percent_return_next_dividend. We left the other attributes in the dataset in case you wanted to use any of them. Of course what you want to maximize is percent_change_next_weeks_price.

Training data vs Test data:
In (Brown, Pelosi & Dirska, 2013) we used quarter 1 (Jan-Mar) data for training and quarter 2 (Apr-Jun) data for testing.

Interesting data points:
If you use quarter 2 data for testing, you will notice something interesting in the week ending 5/27/2011 every Dow Jones Index stock lost money.

Attribute Information:

quarter: the yearly quarter (1 = Jan-Mar; 2 = Apr=Jun).
stock: the stock symbol (see above)
date: the last business day of the work (this is typically a Friday)
open: the price of the stock at the beginning of the week
high: the highest price of the stock during the week
low: the lowest price of the stock during the week
close: the price of the stock at the end of the week
volume: the number of shares of stock that traded hands in the week
percent_change_price: the percentage change in price throughout the week
percent_chagne_volume_over_last_wek: the percentage change in the number of shares of
stock that traded hands for this week compared to the previous week
previous_weeks_volume: the number of shares of stock that traded hands in the previous week
next_weeks_open: the opening price of the stock in the following week
next_weeks_close: the closing price of the stock in the following week
percent_change_next_weeks_price: the percentage change in price of the stock in the
following week days_to_next_dividend: the number of days until the next dividend
percent_return_next_dividend: the percentage of return on the next dividend

Relevant Papers:

Brown, M. S., Pelosi, M. & Dirska, H. (2013). Dynamic-radius Species-conserving Genetic Algorithm for
the Financial Forecasting of Dow Jones Index Stocks. Machine Learning and Data Mining in Pattern
Recognition, 7988, 27-41.

Citation Request:

We request that you provide a citation to this paper when using the dataset. We welcome you to
compare your results against ours in (Brown, Pelosi & Dirska, 2013).

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