I'm working on an algorithm that includes ranking of stocks based on both fundamental and technical data. A question arises around the fundamental data and the time period it reflects. For example, If I fetch the "roe" field, what am I getting: ROE for what period of time? Today, last week, last quarter, the past year... it makes a difference. FWIW, the help document for Fundamentals merely states that roe is "Net Income / Average Total Common Equity".
The algorithm I'm attempting to port from another system uses REO for the most recent quarter, but that system also offers Prior Quarter, Prior Year Quarter, Trailing 12 Months, Prior Trailing 12 Months, Recent Annual and Prior Year.
Janene