Questions tagged [factor-investing]
The factor-investing tag has no usage guidance.
71
questions
0
votes
0
answers
43
views
Factor investing for traders
Can factor investing be used for short term trading ? If yes how macroeconomic and style will be different from long term ?
- 121
0
votes
1
answer
79
views
PCA factors not uncorrelated
I ran into an interesting case recently. I am trying to construct a set of uncorrelated factors for a statistical factor model. I have started with picking a certain amount of assets (indices) which I ...
- 9
0
votes
1
answer
82
views
Combination of factors
Let's say I have 10 factors and I want to find a combination (basically sum of exposures) of factors (of any length) from this set which has max sharpe. Is there an easy way to find this out rather ...
2
votes
1
answer
88
views
Why cannot Fama-MacBeth regression identify a zero-mean factor with explanatory power?
Imagine a factor perfectly explain the return of all the stocks in a universe, and the factor has a zig-zag shape around zero (as shown by the image).
Since the factor perfectly explain the return of ...
- 23
0
votes
0
answers
40
views
How to calculate Fama French & Momentum factor returns during Covid recession using their data website?
We know that Covid Recession lasted during the months of March & April 2020. Using Fama French data, how do you calculate returns for factors such as ...
- 111
2
votes
0
answers
91
views
French and Fama - Alpha vs Residuals (Error)
When running a regression to empirically test models like CAPM or the Fama and French Model, why do we test the statistical significance of the intercept? Do we ignore the residual error?
Why not ...
- 21
0
votes
1
answer
88
views
What is the definition of aggregate volatility, and how to compute it?
I am quoting the following sentence from Andrew Ang's paper "The Cross-Section of Volatility and Expected Returns". Can someone explain how aggregate volatility is defined and how to compute ...
- 1
0
votes
0
answers
28
views
Replicating Index: Timeframes and Standards for the Quality Factor Construction
I'm presently working on replicating a specific index. The methodology provided by the index provider offers a detailed definition of the Quality Factor. However, there seems to be an ambiguity ...
- 21
0
votes
0
answers
61
views
Unhedged factor models in trading
Suppose I have a factor model that takes in unemployment and GDP as $X_1, X_2$ respectively in estimating the fair price of asset $Y$. Say I observe that the market price of $Y$ has deviated ...
- 51
0
votes
0
answers
101
views
Any document about general backtesting algorithm and data structure
(Note there are similar questions, with different focuses at this forum, but my focus is more on the general concept, if any, about backtesting (for stocks) and sources of information where I can go ...
- 1
2
votes
0
answers
248
views
How momentum factor is calculated?
I got following code from the Quantopian Lecture about factor investing. Following is calculating momentum factor. Earlier in the lecture, instructor told that, we will sort the securities based on ...
- 163
3
votes
0
answers
79
views
Aggregation of (cross-sectional) Factor model
Suppose I have a large factor model for security returns, i.e. I have a vector $\mathbf{Y}(t) \in \mathbb{R}^{P}$, with factor loadings $\mathbf{\beta} \in \mathbb{R}^{P \times K}$ over a set of $K$ ...
- 31
1
vote
1
answer
424
views
2 methods for estimating factor return - differences between those 2 methods
I have a question for estimating factor return. I’ve found that there seems to be 2 methods for estimating factor return.
First, with return of an asset i(r_i) and factor loadings such as PER, EPS, ...
- 57
0
votes
1
answer
269
views
factor evaluating methodology with factor return and factor exposure
studying with a factor model, I get confused more and more as I think about factor exposure and factor return
The concept (or mechanism) I get used to is evaluating a factor's Long Short Return(Q1-Q5) ...
- 57
1
vote
1
answer
475
views
How to correctly use Fama-French factors (from investment portfolio perspective)?
I have several questions regarding Fama-French and other (for instance, BAB) equity return factors for practical purposes (portfolio construction, portfolio risk analysis, portfolio return analysis). ...
- 23
0
votes
1
answer
379
views
Value factor from Ken French's library
I'm after returns of the Value factor (book-to-market) from Ken French's library. Based on the description, I'm guessing it's this one: ...
- 145
1
vote
0
answers
82
views
how should I update a return factor's orthogonalization parameters?
We have constructed a return factor for a Fama-French-Carhart type factor model which adds a "BMG" factor for climate risk exposure (see open-climate-investing)
This BMG factor is ...
- 421
3
votes
1
answer
427
views
characteristics of factor portfolios
In the paper Characteristics of Factor Portfolios (https://papers.ssrn.com/sol3/papers.cfm?abstract_id=1601414), when it discusses pure factor portfolios, it says that simple style factor portfolios ...
- 479
4
votes
0
answers
106
views
How do we know if an additional factor has improved the predictive power of a Fama French 3 factor equity model?
We're building a multi-factor model for climate risk by adding an additional factor for carbon risk on top of a Fama and French 3 factor model. This is open source at https://github.com/opentaps/open-...
- 421
0
votes
0
answers
379
views
How to implement a factor model from scratch?
Imagine we have price-volume data set and fundamental data set which gives us all the info we need (e.g,. OHLC, earnings, dividends etc.) for stocks listed in a market for long time period. I.e., you ...
- 163
1
vote
1
answer
442
views
What is the market share of MSCI Barra Equity Model?
My understanding is that MSCI/Barra's model has a very large market share in funds and banks, but I cannot find out how large is the exact market share.
Is there any data on this, or can someone ...
- 1,170
7
votes
1
answer
323
views
What are the most common ways that quantitative funds construct industry/style-neutral factor portfolios?
For instance, consider momentum strategies. Naive portfolio construction will likely load on large style/industry return components, which increases portfolio risk dramatically.
How do quant funds ...
- 1,170
3
votes
0
answers
71
views
Fama and French HML and SMB factors
I am investigating the Fama and French model using a Bayesian selection procedure laid out by Barillas and Shanken (2018). When I plot the cumulative probabilities of each factor, I notice that for ...
- 31
1
vote
0
answers
45
views
Novy-Marx Profitability "Excess" returns - What does Excess mean here?
I am reading Novy-Marx's paper titled "The other side of value: The gross profitability premium".
Throughout the paper, he mentions excess returns in several tables, but I cannot find any ...
- 11
3
votes
1
answer
171
views
SML Interpretation
I follow this paper and estimated two different asset pricing models via systems of deep neural networks. Both models have the exact same input: firm-specific features for 10'000 (unique) US stocks ...
- 253
5
votes
1
answer
2k
views
What is "signal" in quant investing?
Can somebody explain (and give examples) of "signals" in quant investing? What are those? What does this word mean?
- 179
0
votes
0
answers
50
views
Simulation of price ratios
How to go about simulations of variables like price-to-book or dividend yield? Basically I would like to do a simulation based testing of an investing strategy (other than historical simulation). It’s ...
- 968
0
votes
2
answers
230
views
How can you use factor modelling to improve your current portfolio [closed]
Firstly let me apologise if this has been asked on on here before - I went through some of the factor modelling post on here but I've struggled to find the answers. I am new to the quant world and I ...
- 21
2
votes
1
answer
128
views
Low volatility in factor regression
Let's say we are working with the standard Fama-French 3 factor model and we want to add a low volatility factor. Is it alright to add a low volatility risk premium in a model such as the CAPM or FF3. ...
- 87
3
votes
3
answers
738
views
Why exposure to the profitability factor increases investment premium?
I'm a DIY investor that attempts to put together his market portfolio, tilted to increase factor exposure. Currently, I'm trying to do it based on the French-Fama 5-factor model.
This model contains ...
- 53
1
vote
1
answer
276
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....
- 181
0
votes
2
answers
98
views
Equity risk factors with daily rebalancing
I am building some well known equity factors on the S&P for research purposes. It means those are going to be used for general evaluation purposes but do not need to be replicable. Would it be a ...
- 223
1
vote
1
answer
114
views
Why do we regress with respect to premiums in factor models like FF?
Factor investing can be explained by factor models, via the factors exposures. For example Fama-French observed that Size and Book-to-Ratio were systematic risks of a portfolio and consequently they ...
- 45
2
votes
0
answers
192
views
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 ...
- 21
0
votes
1
answer
540
views
Do Fama-French factor portfolios require optimization?
I am going to perform factor crowding analysis for my dissertation and I am struggling to build factor portfolios from the S&P 500 in r.
I built my dataset from the S&P 500 and I am able to ...
- 223
3
votes
1
answer
1k
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 ...
- 349
2
votes
1
answer
525
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, ...
- 349
0
votes
0
answers
460
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 ...
- 63
0
votes
1
answer
1k
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. ...
2
votes
1
answer
268
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}+ ...
- 71
3
votes
1
answer
282
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 ...
- 31
1
vote
0
answers
62
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 ...
- 11
2
votes
2
answers
979
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 ...
- 1,219
2
votes
3
answers
499
views
Systematic credit "liquidity provider" strategy
I was reading a piece published by Bloomberg today, where it says the following:
“A systematic process lends itself to providing liquidity rather than
taking it because our models have views on ...
- 1,840
1
vote
0
answers
101
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-...
2
votes
1
answer
2k
views
Cash Flows from Operations in Compustat
I'm trying to replicate Piotroski's F-Score (2000) for my PhD. In the paper, one of the components to F-Score is CFO / Assets from Compustat. However, item 308 (...
- 145
2
votes
1
answer
511
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 ...
- 23
1
vote
3
answers
325
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 ...
- 273
1
vote
2
answers
756
views
Backtesting with Stock Indices, how does one deal with it?
I was wondering how to backtest using stock indices. For example, the FTSE100 has had changes in its components over time. How does one go about testing a time period from i.e. 2000 - 2018, even if ...
- 13
1
vote
0
answers
57
views
Crisis in in-sample period
I am backtesting a value momentum asset allocation strategy and my in sample period is from 2003 to 2011 and out sample from 2012 to 2019. I am optimising a cutoff for value on in sample to allocate ...
- 968