Questions tagged [risk-management]
The identification, assessment, and prioritization of risks, followed by coordinated and economical application of resources to minimize, monitor, and control the probability and/or impact of unfortunate events or to maximize the realization of opportunities.
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Risk management tools for long term Gamma/Vega sellers subject to margin calls
TL;DR: if you're a retail investor and you systematically sell long-term vertical spreads while staying Delta-neutral, your main risk comes from Vega and the Gamma of opening gaps that can throw you ...
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Intuition behind the Carr and Wu (2014) static hedging for ordinary options
Let $(S_t)_{t \geq 0}$ be the price of an underlying asset, $r$ be the risk-free rate of return, $q$ the dividend yield, $C_t(K,T)$ is the price of a call option written on $S_t$ at time $t$ with ...
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What put options would the Universa Tail Fund have bought?
According to this Bloomberg article, Universa was up 3,600% in March 2020, by hedging with extremely out-of-the-money puts: https://www.bloomberg.com/news/articles/2020-04-08/taleb-advised-universa-...
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First principles in Finance
Every so often I hear people referring to the term "first principles". It seems to me that this term does not necessarily have a universally accepted connotation in Finance. Here is the general ...
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Modified duration in multi-currency portfolio
I was thinking about how to figure aut duration for portfolio of bonds denominated in different currencies… I would like to compare sensitivity of portfolio to shift of yield with competitive ...
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Active risk management of private assets
It seems incredibly difficult to not only come up with a list of options for active risk of private assets (Private Equity, Private Credit, Infrastructure, Real Estate, etc.) but also get senior ...
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Methods to estimate Options volume
I need to build a Liquidity Risk report at my intern job. There, I consider an MDTV90 (Median Daily Traded Value for 90 days, a measure of liquidity) for each asset we trade to find how many days we ...
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How to "best" exit multiple trades?
Let say I have N opened trades (N = s + b) that are partialy hedged, and paritaly not. In general s != b. Some of them are market sell orders (s), and the rest of them are market buy orders (b). They ...
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Pricing/Hedging a yield curve spread option (YCS)
I have 2 perspectives as to what model to use for a YCS option:
It is an at the expiry option, so hit the marginals, correlate them with a copula, and be done with it.
To hedge the vega, I will need ...
3
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Using transaction data to predict default of the customer
I am trying to build a prediction model that utilize the huge transaction database of all the customers of a bank. My dataset currently looks like this:
...
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subadditivity of VaR
It is known that the VaR (Value at risk) doesn't fulfill subadditivity, i.e.
$VaR(X)+VaR(Y) \le VaR(X+Y)$
But for elliptical distributions subadditivity is true. Questions:
(1) Which ...
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Non-parametric estimator - CVaR / Expected shortfall
Is the estimation of the CVaR using known non-parametric methods (histogram, kernels) different than the estimation of any other R.V.?
If the answer is yes, I am interested to know whether there are ...
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conferences for credit portfolio managers
What are worth conferences for credit portfolio managers?
I appreciate your recommendations!
PS:I am aware that this question is not the typical quant.SE question, BUT I couldn`t find reliable ...
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regarding Basel III IRB method for credit risk
Would the exposures between standard method and internal rating based method for credit risk under Basel III remain same?I could not find any documents for IRB approach under Basel III. Is it still ...
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Quantitative risk management strategy for a large participant in an illiquid market
Are there any practical quantitative risk management strategies for a large participant in an illiquid market with a few dominant players? By a large partcipant I mean someone who
has significant ...
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Portfolio construction: Over/underweighting assets with a given active risk budget
I am trying to refresh my knowledge of portfolio risk calculation but would like to get a second opinion on the best approach.
I have a set of 10 assets that together make up the benchmark and I have ...
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Optimal portfolio as combination of target and minimum tracking error portfolios?
Dear Quant StackExchange
I seek some intuition for how my portfolio behaves given constraints.
In a universe of say 5 assets, I have a "target portfolio" with weights that are found from ...
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Risk-managing vanilla books (sell-side)
I am interested in learning more about how traders risk-manage books of vanilla options. I presume there should be a fairly standard list of facts. For the moment, the area of interest is FX, as ...
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Martingale corrections to historical Value at Risk?
I am looking for a bit of advice. I have recently used to a new firm, which uses Value at Risk in a manner that is unfamiliar from previous places I have worked that I find less than ideal.
Previous, ...
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Where could I find code to compute Potential Future Exposure
Ideally code in SAS, R, Python or Matlab for calculations involving counterparties holding positions in energy markets on multiple price curves, with a Monte-Carlo methodology or a simpified ...
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Formulating Deposit Rate Sensitivity to Market Rate Changes
I have historical deposit rate data for a specific bank. I want to determine the sensitivity of deposit rates to market rate changes (I'll be using Fed Funds rate). My question is, what would be an ...
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To price Municipal Bonds and risks I want to know the percent of unfunded pension liabilities ($3.8T) to total state and local gov liabilities
Unfunded pension liabilities keep growing and this seems alarming to both pension holders but also Municipal Bond holders.
I would like to know how large this problem is to better price Munis and ...
2
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Why not to maximize Sharpe Ratio directly when computing optimal allocation of an order?
I was reading the following paper of Engle about balancing transaction costs performance and risk:
https://www.nber.org/papers/w12165.pdf
He deals with finding the optimal placement of the child ...
2
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Mean Variance Optimization vs Risk Scaling
What would be the difference between the following. Both techniques will result is an ex-ante risk of $\sigma$. However, that would be achieved via two different values of h. I want to understand ...
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Example of Coherent Risk measure with Compact Representation
Every coherent risk measure $\rho$ can be represented as
$$
\rho(X)\triangleq \sup_{Q \in \mathcal{Q}} \mathbb{E}\left[
-X
\right],
$$
for a set of probability measures $\mathcal{Q}$ defined on the ...
2
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Pricing default risk in cryptos
I'm looking to figure out how to price "insurance" against a counter-party defaulting in an OTC cryptocurrency transaction. I think the first measure would be to calculate VaR? I'm planning on ...
2
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Statistical methods to compare two financial series data
I have two financial series data, x and x', where x' was formed form ...
2
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z-score of an active return with a no-volatility benchmark
I don't know how to approach the problem I am having. Basically, the statement I am trying to make is: the fund's return is X standard distribution away from the mean.
Normally, for a single fund, ...
2
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DCCfit speed up formula
I am estimating the covariance matrix by using GARCH DCC model with function dccfit from package rmgarch. My code is something like:
library(rugarch)
library(rmgarch)
...
2
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VaR decomposition of non-normal portfolio by g-and-h distribution
According to Doowoo Nam (2013), VaR of non-normal portfolio returns approximated by g-and-h distribution can be decomposed pretty much in the same way as the VaR of a portfolio with normal returns. ...
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Optimal weights for portfolio optimisation (r)
The question is what R optimization could be applicable to find a vector of weights that when, multiplied by S matrix creates equal rows sums, and when set in the objective function returns the ...
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Bayesian analysis in R: Probability of default, low default portfolios
I want to apply the knowledge of this paper (Bayesian estimation of probabilities of default for low default portfolios, by Dirk Tasche) in R, but I can't find the right bayesian package and functions ...
2
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In May of 2005, several large hedge funds had speculative positions in CDO tranches
These hedge funds were forced into bankruptcy. This was due to:
the correct answer is:
Long Mezzanine and Short Equity Tranche position when correlation of Mezzanine tranche decreased.
Can anyone ...
2
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Vol surface changes as underlying moves
We market make in highly liquid, near term options markets. I want to build a risk report that tells us how our portfolio's greeks will change as the underlying moves. This is for risk management in ...
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Modelling the Cost of Risk
I would like to read something about the cost of risk. Could anyone recommend some reference about how it is calculated or modelled?
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Commercial Vendors for Risk Management and Portfolio Optimization and Performance Attribution
So this question is directly about companies such as Axioma, Barra, Northfield, and etc. that provide risk management, portfolio optimization, and performance attribution related services. I want to ...
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Risk measures, Risk Management and Financial Risk Area
I'm currently searching material about market risk and I learned about coherent risk measures, VaR, CVaR (or expected shortfall), volatility.
All that because I have to make a Financial Risk Area for ...
2
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Beta distribution - Holding period
Let's say I have a risk factor that is defined between [0,1], such as recovery rates. Assuming I have daily data, I can estimate the "daily VaR", i.e. the tails over 1 day period, since the data is ...
2
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Market Exposure and Hedging
Normally the Market exposure associated with your stock/portfolio is your delta for that stock/ portfolio. Basic idea of hedging involved here is buying/selling respective futures depending upon ...
2
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1
answer
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Energy Risk Quant--Any discussion boards for energy related quant topics?
Any discussion boards for energy related quant topics? Like VaR in energy portfolio, and pipeline option pricing.. just want to know where is the best discussion board for such energy specific topics.
...
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How to adjust an assets position to target volatility in a long-short portfolio?
I have a portfolio of weights $\mathbf{x}$ where some positions in $\mathbf{x}$ are short s.t. $\Sigma_i x_i=0$ (dollar neutral).
The standard way to estimate the volatility contribution per asset is ...
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How do I allocate between passive and active strategy using active risk budget?
Lets say I have 100 million dollars. My active risk budget is 5%. I have an active fund that has active risk of 10%. What will be my mix in dollar terms of this active port and passive etf (assume ...
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Calculate fund size given risk limit?
I was listening to a podcast and this guy mentioned the following (literally):
The entire group is probably running 800 million at risk. So I'm going
to say like call that like a, if you think of ...
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0
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Practical risk management on snowball autocallable portfolios
I am new to exotic options pricing and risk management. The scenario that I encounter is that the market maker sells snowball autocallable products(accumulated coupon) every trading day and has to ...
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MonteCarlo Value At Risk for futures portfolio
I wanted to ask, suppose I have a portfolio of futures of gasoline and other oil products eg ULSD (Ultra Low Sulphur Diesel), WTI (West Texas Intermediate) for different months. I want to compute the ...
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Techniques for proxying time series / stock prices
What are some good techniques for proxying time series?
My purpose is for risk management / modelling and I would like proxy to missing series.
Given that I also have to account for volatility, ...
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Core deposits forecasting in stress testing
I’m designing a stress test at a commercial bank. What are the advantages/disadvantages of forecasting core NMD deposits vs. total deposit balances?
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Calculation of Total Credit Risk Capital % but seeing lower capital percentage for higher risk band. Is there any correction required?
I am trying to calculate the Total Credit Risk capital % for my learning purpose as given below. Assuming adding 1 single loan with different pds.
i have noticed one point in the table and have two ...
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Modigliani risk-adjusted performance - marginal contribution
I would like to carry out risk-adjusted return attribution using the M^2 excess return, such that i can express
M^2 excess return = risk free rate + sharpe ratio x benchmark vol - benchmark return
in ...
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Calculating performance decay of a strategy
Came across this thread which basically advises t-test for difference in means across periods to calculate whether our edge is deteriorating. The catch being that this test will probably not be ...