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Questions tagged [information]

The tag has no usage guidance.

0
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1answer
42 views

Calculation of Information Ratio

When calculating an information ratio, should the average of monthly returns be used or the cumulative monthly returns be used? Thanks!
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1answer
85 views

How is breadth for Information Ratio Calculated

An alternative definition of the information Ratio (sharpe ratio) is: $IR = IC\sqrt{BR}$ I have been reading Grinold and Kahn. I have the following questions for calculating BR: Q1. If 500 stocks ...
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2answers
137 views

About the number of independent forecasts in the Fundamental Law of Active Management

The original FLAM predicts the information ratio by $$ IR = IC \times \sqrt{N} $$ where $IR$ is the Information Ratio, $IC$ is the information Coefficient and $N$ is the number of independent ...
3
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0answers
45 views

Characterizing relation “ has no less information than” between information systems represented by Markovian matrices

I crossposted this question on math.stackexchange. Background: Suppose that an investor's utility is both determined by the state and her action taken. A fact of life is that she can't observe the ...
1
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1answer
380 views

what is considered material information? [closed]

I'm trying to understand what is considered "material" information held by an executive of a company. There is company information that an executive (say insider) will know that a public investor will ...
1
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2answers
850 views

What information do stock exchange colocated servers have access to?

In high frequency and low latency trading, decisions are done on the spot by servers colocated in stock exchanges. This implies that those servers have immediate access to the information they need to ...
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0answers
118 views

single channel for multiple feeds of news? [closed]

I subscribe to various blogs and twitter feeds which I use to parse for keywords. Many times these subscriptions do not include topics which are of the primary concern. Are there multiplex channels ...
3
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0answers
311 views

What does T statistics of Information Coefficient indicate?

Hi I am looking for a clear explanation of T statistics concept. Especially in quantitative equity portfolio management context, what does T statistics of monthly Information Coefficient for one ...
18
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4answers
762 views

Variable Selection in factor models

Let's say you have a dependent variable and many independent variables. What are the preferred metrics for sorting and selecting variables based on explanatory power? Let's say you are not concerned ...