Tagged Questions
0
votes
0answers
65 views
Volatility of a rolling window strategy
What methods can be applied to determine the volatility of strategy using a rolling window? Using normal standard deviation would bias the results as the returns will be highly correlated. Although, ...
7
votes
0answers
127 views
How to estimate the following model?
Suppose I have the following model:
$$r_t=\sigma_t * \epsilon_t$$
where $r_t$ is the return at time t, $\sigma_t$ is the volatility, the model used to model this volatility is an exponentially ...
3
votes
2answers
358 views
When gains are made: Overnight or during trading hours? What is the connection to volatility?
Falkenblog reports an interesting finding: All of the stock returns since 1993 are from overnight returns and cross-sectionally, volatility receives a positive overnight risk premium, a negative ...
2
votes
1answer
107 views
How to group mutual funds by volatility?
I want to group Mutual Funds by their volatility.
Ideally, I would like to end up with the mutual funds beings attached to different groups:
High volatility
Medium volatility
Low Volatility
My ...
5
votes
1answer
2k views
Annualzing the log of daily returns riddle
Two popular ways to measure returns are Arithmetic returns and Log returns. Let's define arithmetic (simple period) returns as: P(t) - P(t-1) / P(t-1). Let's define log return as Ln( P(t)/P(t-1) ) or ...
