Questions tagged [factor-models]

Econometric model that have the purpose to measure the effect of different risk measures on portfolio asset returns.

Filter by
Sorted by
Tagged with
0
votes
0answers
8 views

Benchmark for fund in Fama French 3 factor setting

I found this question during my preparation for an exam. It looks easy, but I am not quite sure how to answer it. Consider a fund A with following factor exposures $\beta_{M}=0.8$, $\beta_{SMB}=0.4$,...
0
votes
1answer
38 views

Multi Factor rolling beta

I want to monitor HF/CTA long/short position and calculate beta on different HF indices in Excel/VBA, see graph below. I can't seem to find any papers on "Multi-factor based rolling beta", so my ...
0
votes
0answers
28 views

How to optimizer alpha signals when the estimated uncertainty of signal is known

Suppose we have the alpha signal $\alpha_i$ for a collection of $N$ stocks $i=1,2,...,N$. Typically, we will use $\alpha_i$ to construct our portfolio as $$ P=\sum_i \alpha_i \cdot S_i $$ with $S_i$ ...
0
votes
0answers
35 views

Fama-Macbeth Regression: Weird Risk Premia

I just conducted a Fama-Macbeth regression where in the first step I calculated a time-series regression for each individual stock to get three betas (for mkt-rf, smb, hml) for each stock. Then I ran ...
0
votes
1answer
67 views

Demonstration of the Schweinler-Wigner Orthogonalization procedure

Can anyone give me a practical demonstration of the Schweinler-Wigner Orthogonalization procedure? The steps of performing it or possibly a code snippet. The Schweinler-Wigner Orthogonalization ...
0
votes
1answer
76 views

Fama Macbeth regression with rolling window

I am confused about how to run fama macbeth regressions for portfolios with rolling window. For example if I have 25 portfolios and time period is 50 years(monthly), rolling window period is 5 years. ...
1
vote
1answer
64 views

Alpha generation and factor models

I have studied factor models in a very introductory manner, going through there Fama-French model and then APT. I understand the concept of decomposing returns into factors, but I don't understand how ...
1
vote
1answer
27 views

Fundamental factor models: what to move to the LHS

My question is simple: what is the best practice in moving known variables to the LHS of Fundamental Factor Model regression? I am seeing different approaches. $R_{it}=\alpha_i + \beta_{i,1} f_{1,t}+ ...
1
vote
1answer
55 views

How do weights of a Mean-Variance optimized portfolio change as the Covariance matrix of the risky assets change?

I am learning a bit more about CAPM, and wanted to know if there was a specific way that weightings of assets in the optimal mean-variance portfolio changed (for constant risk aversion, expected ...
2
votes
1answer
58 views

How to test ESG score as a factor against traditional factors

I have created my own ESG scoring system. I would like to test it as a factor against the traditional factors (growth, Value, quality, size etc) In essence a correlation test. Could anyone please ...
1
vote
1answer
58 views

Highly skewed (and positive kurtosis) return distribution as a dependent variable

I have two set of optimized returns over a period of time and called this portfolio 1 and 2 and two benchmark portfolio (a value-weighted and equally-weighted benchmark). I want to see the difference ...
1
vote
0answers
69 views

Is there a good book/blog on applying statistical methods in finance? [closed]

I am learning a lot of tools in statistics, but I am having a hard time figuring out where I could apply these methods in finance, especially in relation to investment and trading. Is there a good ...
3
votes
1answer
165 views

Finance: Portfolio - Long Short Portfolio construction

I am trying to construct a Long / Short portfolio in R. Say I have two portfolios Tech and Mature and I want to go long on the <...
3
votes
1answer
104 views

Interpretation of Fama French portfolio

I have two portfolios, one "bad" and the other "good". I construct the portfolios by taking the average monthly returns based on some criteria each year. In any given portfolio there could be between ...
3
votes
1answer
146 views

Alpha vs. Sharpe Ratio

What are the main differences between a strategy's Sharpe ratio, and its alpha based on the Fame French factors? Does it make sense to evaluate them both in a thesis?
1
vote
0answers
42 views

Are these factor returns are to low?

I have just found a statistics summary of different MSCI factors (based on the Barra Global Total Market Equity Model for Long-Term Investors (GEMLT)). I wonder why the annual returns are so low ...
2
votes
1answer
85 views

What is the effect of leverage (ability to short stocks) upon the Fama-French regression coefficients?

I have optimised a set of portfolio and subsequently regressed the returns against the fama-french-Carhart factors. I have two portfolio, one in which short sales are allowed (the portfolio can take ...
1
vote
0answers
21 views

Regression Assumptions for Fama French 3 factor model and Carhart 4 factor model?

i want to run regression for Fama French and Carhart model for my thesis. so, should i check all the regression assumptions or only multiocolinearity.?
1
vote
0answers
43 views

Stochastic discount factor for factor research

Often, after presenting a new factor technique, the paper calculates an SDF by doing $\Sigma ^{-1}\mu_F$ i.e. mean variance optimization on the factors. What is the significance of doing this ?
1
vote
1answer
77 views

Interest Rate Swap curve: CMS vs. OIS?

I'm working on a project where we're trying to create a database model where we can (daily) update collected data in order to make RPA predictions. We received data from Interest Rate Curves called ...
4
votes
2answers
168 views

Comparing Investment Style with Fama French 3 Factor Model

How do you evaluate this? I have tried searching online but there are no matching results. Is it just a simple average of the 3 Betas? And how do we determine the investment style aggressiveness? In ...
0
votes
2answers
78 views

What is factor timing?

I see the use of factor timing here and there, yet it is impossible for me to understand what it is about. Could someone explain what people mean about timing a factor, maybe through the use of a ...
0
votes
0answers
27 views
3
votes
1answer
51 views

Exposure/Factor Analysis on a loan portfolio?

I am working on performing factor analysis on a loan portfolio. This is my understanding so far, and I was hoping that some of the smart folks here might be able to chime and guide me through this ...
1
vote
0answers
37 views

Risk neutral valuation [closed]

In a world with three possible states (1, 2, 3) and three assets (A, B, C), the payoff matrix looks like this: $r_A;_1,_2,_3 = 110, 110, 110$ $p_A = 100$ $r_B;_1,_2,_3 = 100, 50, 40$ $p_B = 70$ $...
1
vote
0answers
29 views

Non-redundant asset?

I've been solving many exercises with three assets that have two possible payoffs each, one payoff per possible future state. The question is always the same, i.e. is any asset redundant. After ...
1
vote
0answers
31 views

Factor model alternative? [closed]

Suppose there is a Fama-French model estimated for a stock of Shoemaker Ltd.: $α = 0.01$ $β_M = 0.9$ $r_M = 0.12$ $β_S = 0.3$ $S = 0.05$ $β_H = 0.2$ $H = 0.06$ $r_F = 0.03$ How would you ...
1
vote
0answers
43 views

How should I interpret the (insignificant) coefficients of Fama-French 3-factor model?

I am writing a mid-term thesis on the Fama-French factor model. I have built 5 portfolios sorted by the Book-to-Market ratio. The first portfolio is the lowest-BM group and the last portfolio is the ...
1
vote
0answers
33 views

Relationship between correlations of long only and short only portfolio with long-short portfolio?

I am working on one quality and value factor, the correlation between a long-only or short only portfolio of these two factors is respectively 0.7 and 0.8, and the correlation between combined long-...
1
vote
2answers
112 views

Stress testing fixed income Yield curve with Nelson Siegel

I am attempting to stress test the Zero coupon Yield curve using The Nelson Siegel model as described in the following papers : Generating Yield Curve Stress-Scenarios Representative Yield Curve ...
2
votes
1answer
118 views

how do factor models in equity portfolio management add alpha?

This is a general question on how fund managers use factor models to add alpha. I understand how a risk model can tell you what factors a portfolio has exposure to. But can a risk model actually tell ...
1
vote
1answer
111 views

Barra model: why standardize the fundamental risk factors?

The two main types of risk factors included in the famous Barra model are called the "fundamental factors", and "industry factors," and the thing that I do not understand is why are only the former ...
1
vote
1answer
75 views

Alpha estimation from factor models

This question makes reference to section 8.4 - Application to performance measure - of the 2007 publication "Performance Measurement for Traditional Investment" by Véronique Le Sourd. You can find the ...
3
votes
1answer
325 views

Rationale of Fama Macbeth procedure

I am confused about the rationale behind the Fama Macbeth regression methodology. I understand how to practically perform the two steps but not why one should do so. For instance, considering the ...
1
vote
3answers
87 views

Insight on how factor models achieve dimensionality-reduction?

Going through the literature on factor models, I keep seeing the phrase "dimensionality reduction" and how factor models allow for the modelling of assets in high-dimensional cases, and I would ...
0
votes
0answers
42 views

Portfolio Return Decomposition

Barra gives factor weights for a common set of factors, for each asset. Given a long-short portfolio, is there a way I can combine the individual factor weights to get the factor exposures for the ...
0
votes
0answers
52 views

Factor Loading with multiple exposures?

How do I decompose portfolio exposures when assets may have exposure to a few of my risk factors? For instance I have some sector and state specific risk factors. If I have a bond with exposure to ...
1
vote
1answer
84 views

Naive question: how do factor models inform portfolio construction?

I have read plenty on the topic of factor modelling, but, in the end, after one has decided upon the factors to include in a model, how do all the Betas how tell one how to weigh each asset in a ...
1
vote
1answer
92 views

Why do Factor Models set up their factors differently from regression?

While this may be awkwardly-titled, I hope that my question becomes clearer upon reading. So this is what I gather about Factor Models: they are statistical models set up to explain the returns, ${...
1
vote
1answer
42 views

How would one go about verifying a factor model

Suppose I have a factor model $$ \rho_i = \sum_J \beta_{iJ} \rho_J + \epsilon_i $$ where $\rho_i$ is the excess return of asset i over the risk free rate and $\rho_J$ is the excess return of the ...
0
votes
0answers
43 views

What is the earliest mention of ROE as an asset pricing factor?

Can anyone tell me, what is the first application of ROE in an (empirical) asset pricing model? I am aware of the 2011 paper by Chen, Novy-Marx and Zhang. Are there any earlier papers on the matter?
0
votes
2answers
96 views

Is it possible to adapt Fama French Model with a 6 factor Model?

I am currently working on my thesis and I was wondering if it was possible to add a new factor to the five model one. This new factor would include the ESG's characteristic of the stock. I would like ...
4
votes
0answers
84 views

Why are thousand-ish-factor vendor risk models not extremely overfit and inaccurate?

Many vendor risk models have many hundreds, or even thousands of factors (many of which are highly correlated with each other). Underlying all these risk models is some sort of covariance matrix in ...
1
vote
2answers
86 views

Extend mean-variance optimisation to fama five factor

I'm new to quant finance, and as I'm not a mathematician, I am using python to try an understand it. There are a number of blogs on the internet which explain mean variance optimisation, but no-one ...
4
votes
2answers
240 views

Factor model and trading strategy in options market

We all know that there are many factor models (CAPM, Fama-French 3...) and trading strategies (momentum trading...) in equity market. I wonder whether there are any analogous factor model and momentum ...
2
votes
1answer
285 views

Question about Fama Macbeth Regression (Confusion about paper)

I'm reading this paper Zura Kakushadze: 4-Factor Model for Overnight Returns https://arxiv.org/pdf/1410.5513.pdf and I am slightly confused about the methodology of the regressions. It says it uses ...
4
votes
1answer
420 views

why calibrate volatility and fix the mean reversion

I have had a few experiences or chats with teammates about the Hull-White model. The famous model has 2 parameters : The volatility The mean reversion Very often I hear that the mean reversion has ...
2
votes
1answer
319 views

What is the benefit of High-minus-Low as in Fama French model?

Can anyon explain the concept of using High-minus-Low in finance literature.
2
votes
0answers
71 views

explanation of factor tilts that uses mathematical notation

Can anyone provide a definition of "factor tilt" that uses mathematical notation? Perhaps factor tilts are based on factor regression models. Let's say that our returns vector $\mathbf{y}_t$ can be ...
1
vote
0answers
88 views

Machine Learnign for Factor Model python [closed]

I have read several articles about Factor Model using Deep Learning or machine learning, but none of them post the code. Where can I find the python code for anything similar?