O'Reilly logo

Investment: An A-Z Guide by Philip Ryland

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

D

Data mining

Trawling through investment statistics, of which there are masses, to find patterns that suggest a theory, then propounding the theory. Such an approach – although widely and understandably used, given the volume of investment data and the power of today’s computers – is potentially flawed because it finds the facts first then seeks to build the theory round them. Logically, it is more convincing to come up with an idea as to why something might happen and then see if the data bear it out. Some of the stockmarket anomalies which indicate that excess returns can be made by following particular trading routines are largely the product of data mining (see CALENDAR EFFECT).

DAX 30

Formerly the Deutsche Aktienindex, this ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required