# Questions tagged [returns]

The asset rate of returns is the profit on a particular investment; it includes any change in the asset value, interest, commission or dividends and so, all other cash-flows which an investors receive or pays due to the investment.

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### The use of volatility from log returns and raw return

As far as I know, we usually use log returns( $ln\frac{p_{t+1}}{p_{t}}$ ) in quantitative finance. For example, let's say we have lots of monthly log returns data, $R_m$. Then, we can get the mean ...
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### The ratio of upside deviation to downside deviation in portfolio weighting

I've been calling this ratio "acceleration" in my head, so I'll do the same in this post. The question is, is this relationship used anywhere and if so, how? My thought process is as follows. Risk ...
61 views

### Optimize risk return of portfolio

I have gathered stock prices from 15 companies over a year. I calculated the averages, yearly volatilizes, and the correlation matrix. I was asked to find the optimum weight for each stock with a ...
277 views

### Value-weighted return: which date should the market-capitalization be based on?

I got a short question regarding calculating the value-weighted return of portfolios. Example: The portfolio is constructed based on the value of a certain criteria on date 31.1 (Jan 31st). The ...
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### Squared returns and volatility

Squared returns are considered pillars of GARCH/ARCH modelling and most used method for forecasting or studying volatility. Can you tell me how to calculate it from simple stock price. Is it better ...
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### Portfolio return with changing assets over time

I need some feedback on a very basic question regarding the calculation of the portfolio return. I have created an example of a portfolio with two assets and attempted to calculate the return: I've ...
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### Should the sum of daily returns be close to monthly returns

I am calculating value-weighted returns with monthly dividends reinvested and for some reason when I sum the daily returns some are a little bit off with monthly returns. Is this normal?
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### Creating value weighted portfolio returns. How to handle missing data?

I am creating portfolios using stock data. I have some missing data for certain months. What is the best way to handle this? Should I treat missing months as a return of zero? I want to try and ...