# Questions tagged [performance]

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### Sharpe Ratio of a Long-Short Portfolio

I have a portfolio High and Low (according to the highest profit). From this I have formed my long short portfolio and calculated my Sharpe Ratio. How to interpret this correctly? Does a positive ...
313 views

### Multi-Period Contribution

I've read multiple research papers but can't find a good answer as to why multi-period contributions don't add up to the returns of a portfolio. I understand that arithmetic sums miss the compounding ...
24 views

### Statistical testing of out-of-time portfolio performance (measured via a custom metric)

I'm testing (out-of-time) my machine learning (ML) based strategy against a strong benchmark. As a performance metric, I'm using a custom rolling metric $M(t)$ which takes into account the portfolio ...
151 views

### best way to calculate the return

Suppose that you want to calculate the single period return. Let p0 be the initial price and p1 be the final price over the ...
44 views

### Brinson attribution for arbitrary set of style factors (size, momentum, vol, etc)

I'm looking to do a Brinson performance attribution on a portfolio of stocks where instead of decomposing the returns in terms of sectors we use factors instead. Basically, I want to do what Style ...
90 views

### Fast Monte Carlo of Local Volatility Model

I want to compute option prices via a Monte Carlo simulation. The model implemented is a Markov process, following the SDE : d X_t = alpha * dt + beta^(1/2) * d W_t ...
587 views

Can you please recommend a paper/book that discusses the attribution of the mark to market of a cross currency swap (rates, basis, fx, etc.)?
427 views

### Portfolio Performance Attribution Using Carino Smoothing

I'm trying to conduct portfolio performance attribution using Carino smoothing, but it seems that the active returns do not match and I don't know why. Here is the example I use: \begin{array} {|r|r|r|...
257 views

### Can alpha be positive if cumulative returns underperform the benchmark?

According to my portfolio analysis program (pyfolio), the alpha of the following strategy is .17 (I am assuming 17%). [Based on pyfolio documentation, alpha here is the "annualized alpha".] ...
48 views

### Regression based performance attribution with dummy variables

I am following some work to do with a regression based performance attribution. The regression is a cross sectional one. The $y$ vector is the risk free return for say 1,000 companies. The $X$ matrix ...
281 views

I'm looking for a modern description of the linking algorithms used in industry arithmetic performance attribution across multiple periods. Since the sum of the active return components in arithmetic ...
21 views

### Error distribution algorithms in performance attribution

Are there any known & generally accepted methods of scaling each return in a period such that the total cumulative return equals a more desired amount? For example, 0.5 and 0.3 have a total ...
76 views

413 views

### Difference between Sharpe Ratio and Information Ratio when measuring Hedge Fund performance?

Here is an unpublished excerpt from Professor X: "Since Sharpe ratio uses standard deviation as a measure of risk, it assumes normal distribution of the underlying returns and it would therefore not ...
240 views

### Out-of-sample performance

I got a problem when calculating the out-of-sample performance of my model. I have the following settings: I have daily data. I use a rolling window of 1 week. I use the previous six months of data ...
502 views

### Sharpe ratio: discrete or continuous returns?

The Sharpe ratio is known as $$SR=\frac{\mu-r_f}{\sigma}$$ Are these values calculated from discrete or continuously compounded returns?
427 views

i am building a platform for portfolio analytics, part of which is a performance attribution module. Given that most individual portfolio's can never have the same number of stocks as say, a mutual ...
256 views

### How to calculate Sharpe Ratio if there are gaps in returns?

I see a lot of examples, like "We hold long position during whole year, then we calculate daily sharpe ratio and multiply it by SQRT(252) to get the annual one". This example makes sense for me. ...
2k views

### Forex P&l Attribution on Physical Forward position

Please validate my unrealized Fx P&L calculation on the commodity forward contract e.g. consider i have bought 1 MT of wheat at 300 EURO my financial currency for company is USD. I am using below ...
455 views

### How to compute daily compounded backtest returns closer to real-world results?

I often run quick tests of trading strategies in my analytics suites by: multiplying a vector of signal (lagged, {-1,0,1}) with a time series of daily percentage returns doing a cumulative product of ...
12k views

### Calculate Average Price, Cost, (Un)Realized P&L of a position based on executed trades

We have built an algorithmic trading software and need to calculate the following parameters for each position in our portfolio. Average Price Cost Realized Profit & Loss Unrealized Profit & ...
270 views

### Industry convention to track trading performance against market indices?

I come from a programming background and not am no quant by career so this is probably a newbie question for you guys. I have written some code to pull daily closing values for market indices (DOW/...
253 views

### desk's performance

I need your point of view in evaluating the monthly performance of a desk. I have the daily credit risk capital requirement (A); the net banking income or GNP (B). What is the best measure of the ...
27k views

### How high of a Sharpe ratio is implausibly high for a low-frequency equity strategy?

I am looking to convince someone that an annualized Sharpe Ratio of 7 is 'extremely high' for a low frequency (daily rebalancing, say) long-short technical strategy on U.S. equities. I was hoping for ...
1k views

### How to annualize dividends paid at varying intervals?

I am attempting to write a function that will calculate the annualized rate of return for individual dividends made by illiquid investments. These dividends are paid at varying intervals and the ...
1k views

### How to compute performance attribution between daily rebalanced strategies?

I have a daily rebalanced portfolio of several strategies. After one month, I now want to attribute the performance to the different strategies. There are several ways to do it. For instance one ...
8k views

### How to combine multiple trading algorithms?

Is it possible to combine different algorithms so as to improve trading performance? In particular, I have read that social media sentiment tracking, digital signal processing and neural networks all ...