ETF historical data preparation

In the previous chapter, we introduced dividend data from IEX. IEX also provides historical data such as the closing price, opening price, highest price, lowest price, and closing price change. The following screenshot will show the historical price responses from IEX. We will retrieve one month of ACWF ETF data:

We list each returned field and give a short description for each one in the following table:

Field	Type	Description
date	date	The trading date
open	float	The adjusted opening price of the ETF on that date
high	float	The adjusted highest price of the ETF on that date
low	float	The adjusted lowest price of the ETF on that date
close	float	The adjusted closing price of the ETF on that date
volume	long	The adjusted daily trading volumes traded on that date
change	float	The closing price change between the trading day and...