Questions tagged [factor-models]

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

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28 views

Some questions to canonical correlations between principle components and asset pricing factors using R

I have done a asympotical principle component analysis (APCA), using eigen() in R, of the covariance matrix of a global dataset of excess returns. I took the ...
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50 views

How would you in practice use factor models (like Fama French) to make decisions?

So I understand that the Fama-French factor model relates a stock's excess return with its beta, market cap, and book to price. How does one use the model in practice? Do people assume that market ...
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41 views

Currency conversion on factors

I am a bit confused on this I have 3 factors Global credit (in excess of treasuries) hedged in USD Currency factor, essentially long a basket of currencies and short dollar = -DXY index Term factor ...
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1answer
42 views

Fama MacBeth 2 step regression (2nd part)

I get the first part of the regression, basically it is a time series regression of returns on the proposed factors. So, I need to run the regression of monthly return on the monthly time series of ...
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26 views

Barra equity factor model handling equity index future

How is equity index future handled in Barra type of equity factor model, i.e. to get its market value exposure to various factors? Does one just treat it as a weighted combination of underlying single ...
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1answer
78 views

How to do Fama French (1993) cross sectional regressions? A few questions

I am still relatively new to asset pricing factor models and have a few questions about my current empirical study. I would be very pleased if you could help me. I have created a new factor which I ...
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28 views

Constructing a replicating portfolio of a long-only strategy using long-short factors

Lets say I want to estimate a replicating portfolio by doing a linear regression between the returns of a long-only portfolio and several long-short factors like Fama-French 5-factor or Betting ...
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24 views

Univariate Portfolio Analysis

We want to form 10 portfolios based on the level of VAR (99%) for equity data over a 30 year period. Portfolio 1 is the portfolio of stocks with the lowest value-at-risk and Portfolio 10 is the ...
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29 views

FF 6-month lag of the accounting variables

I have a fairly short and straightforward question. I am running a dynamic optimization strategy and therefore need to construct the FF5 characteristics. I am using COMPUSTAT quarterly accounting data....
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82 views

Asset Pricing and inferences - Intercept and relationship to returns

Ideally this question is very similar to What's the meaning of the intercept in asset pricing model? I am regressing a "buys minus sells" portfolio returns to the Carhart factors. The intercept ...
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35 views

How do you build a model with uncertain time range?

Let's say you want to test the hypothesis that given a signal reaches some threshold, some asset will have some return over the next period. Here we have two unknowns. One, the value of your ...
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Fama Macbeth and Momentum factor

I am working on a Fama MacBeth regression with excess returns on the LHS and Size, Value an Momentum factors on the RHS. In literature, the Momentum factor is often definded as the cumulative past 6 ...
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37 views

Statistical significance of mean returns between two portfolios

Suppose I have developed two versions ($A$ and $B$) of a factor model for ranking stocks. Both versions of the model use the same scoring system: stocks are percentile ranked within a given universe ...
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61 views

(Yearly) Hedge Fund alpha

I am currently trying to make the best of quarantine by getting familiar with Stata by working on a little project. As the title states, I want to compare yearly alphas of Hedge Fund strategies. I ...
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24 views

Transform Hierarchical Correlation structure to Standard Form

In the standard portfolio risk setup, we have $\sigma_{\Pi} = \sqrt{(w' B (VFV) B' w) + w'Dw}$ where $w$ is our weight vector for N assets $B$ is the Nxm factor beta matrix $V$ is the factor ...
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105 views

Volatility Managed 6 Factor Model (Fama French) - Does it make sense?

after weeks of intense research and in spite of the current situation, I decided to ask the following question to some experts (you): I would like to develop/investigate a volatility managed six ...
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36 views

Question about equation (7) - Asset Allocation vs. Factor Allocation—Can We Build a Unified Method?

Question regarding the article Asset Allocation vs. Factor Allocation—Can We Build a Unified Method? by Jennifer Bender, Jerry Le Sun and Ric Thomas, The Journal of Portfolio Management Multi-Asset ...
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350 views

How does volatility skew change with underlying spot?

We know that generally ATM implied vol is negatively correlated with the underlying spot for equity indices, i.e. implied vol goes up when spot moves down. Therefore I wonder if there are any ...
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1answer
163 views

How to orthogonalize Fama French factors?

The Fama French factors (e.g. size, value) are not orthogonal to each other, so when e.g. you want to create a diversified portfolio of factor mimmicking portfolios (factor investing), the correlation ...
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113 views

Are Fama French Factors market neutral?

I was wondering whether the famous fama-french factors such as e.g. SMB and HML are market neutral? I know that they are long-short factors in the sense that the net investment is essentially zero, ...
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85 views

Three-factor model: Why not own company value/size

I have the following well-known formula for Fama and French's three-factor model $ R_{it}-R_{ft}=\alpha_i+\beta_1(R_{m,t}-R_{f,t})+\beta_2SMB_t+\beta_3HML_t+\epsilon_{it}$. My question is: Why do ...
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36 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 $\beta_{M}=0.8$, $\beta_{SMB}=0.4$,...
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54 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 ...
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36 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 $S_i$ ...
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85 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 ...
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1answer
87 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 ...
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1answer
262 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. ...
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1answer
88 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 ...
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1answer
48 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}+ ...
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1answer
61 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 ...
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1answer
68 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 ...
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1answer
72 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 ...
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77 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 ...
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215 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 <...
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1answer
176 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 ...
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1answer
358 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?
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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 ...
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1answer
96 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 ...
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29 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.?
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51 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 ?
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123 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 ...
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2answers
269 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 ...
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2answers
211 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 ...
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32 views
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81 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 ...
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41 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: $r_A;_1,_2,_3 = 110, 110, 110$ $p_A = 100$ $r_B;_1,_2,_3 = 100, 50, 40$ $p_B = 70$ $...
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37 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 ...
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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 ...
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145 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 ...
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40 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-...

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