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75 views

Sharpe Ratio Graphed Over Time

I looked and could not find a suitable answer to my question already, so: What is the best way to calculate the Sharpe Ratio over time, given I have about a decade's worth of 1-minute candlesticks? I ...
1
vote
1answer
57 views

sub-Gaussian random variables in financial economics

Unlike financial time series that typically possess fat tails, sub-Gaussian random variables have strong decay in the tails of their distribution. do sub-Gaussian random variables or processes appear ...
0
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0answers
18 views

Difference between alpha and ROI ratios?

Given the intuitive definition of "alpha" as the percentage advantage of a portfolio over its benchmark market, what is the difference between ratio (%) of ROIs and alpha? What I mean by &...
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0answers
18 views

Is it possible to compare Forex data to similar random time series to measure how predictable it is?

In relation to my previous question (Who influences Forex prices and by how much?) I have an raw idea how to determine how much is Forex influenced externally and how much is its behavior given by its ...
0
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1answer
89 views

Factor investing and PCA

I'm struggling to understand how Principal Component Analysis (PCA) is used in Factor Models of returns. For example, in the JPMorgan paper (p.19) the authors write: In a multi asset portfolio, factor ...
0
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1answer
45 views

Covariance matrix for historical series w/ different start and end dates

I am trying to compute the variance-covariance matrix of my portfolio composed by some shares of different companies. I would select a time horizon of two years but for some shares of one company I ...
1
vote
1answer
41 views

Model Validation Aggregation Documentation (Binomial, Hosmer-Lemeshow, Tolerance) - Credit Risk et cetera

I came across some document that says for a PD (Probability of Default) model in order to assess its accuracy you need to first look at the Binomial Test, then the Hosmer-Lemeshow Chi-square test, ...
0
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1answer
57 views

Sensitivity to changes in the volatility

I have a sample payoff function shown below: How do I find a formula which gives the sensitivity to changes in the volatility of the underlying stock. In other words, I want to find a formula for $\...
1
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0answers
26 views

Continuity of a portfolio with two options with respect to the strikes

Consider the covariance, evaluated at time $t$, between two call options written on two different but not independent underlyings $S_1$ and $S_2$ defined on the same (filtered) measure space $\left(\...
0
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1answer
35 views

Term Structure of Corporate Bond

I am looking for some clarity on data for Corporate Bond term structure based on Credit Rating. Let say, I need to get the Term ...
0
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0answers
25 views

Simulating two correlated time series using GBM [duplicate]

My situation is the following: I have two time series TS1 and TS2, whereas TS1 is a stock price. According to literature, TS2 is positively correlated to TS1. Furthermore, since TS1 is a stock price, ...
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0answers
34 views

Chinese Stock Exchange Indexes data and descriptive statistics

I am trying to reproduce the following paper: https://link.springer.com/chapter/10.1007%2F11600930_48 In this study, daily prices from January 4, 2001 to December 31, 2004 for Shanghai Stock ...
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0answers
45 views

Derivative Pricing of an Asset

The Stochastic Differential Equation that models the change in an asset price is $$ dS = (12S-sin(S))dt+\frac{\sigma S}{S^2+1}dX $$ where dX's are random variables drawn from standard normal ...
1
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1answer
59 views

Probability of Default calculation

I am looking for some good resources with handful of workout examples, on the modelling of the Probability of Default under IFRS9...
0
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0answers
35 views

Path dependency for Delta hedge value

This is actually a follow-up questions for the two threads below - value of a delta hedged option: Delta hedge value formula Continuous delta hedge formula My question is that how the drift (mu) ...
0
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0answers
31 views

Comparing curve fits

I am experimenting with building a forward curve. I have a piece of code which constructs my prototype curve. I've got a curve sample which was constructed manually and I use it as the baseline - the &...
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0answers
45 views

Escape Dynamics in financial economics or time series

These slides describe escape dynamics to be a type of, or having some relation to, rare event(s). Black swan events in business cycles was also included under the definition of rare events. My guess ...
3
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0answers
111 views

Large deviations theory in finance

In probability theory, the theory of large deviations concerns the asymptotic behavior of remote tails of sequences of probability distributions. A related post says: Large deviations theory is ...
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0answers
19 views

How is the following realized-price related quantity called?

Let's say we're given a stock $S$, and let's denote by $S_t$ the market price (the last price at which the stock was traded, generally not equal to the midprice) of stock $S$ at time $t$. Is there a ...
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0answers
65 views

Portfolio of American Binary Option and Knockout Option

Assume I have a portfolio where I long an American Perpetual Binary option (that pays 1 if S>=K and 0 otherwise) and I short a knock out barrier option. This ...
1
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2answers
87 views

Is 3-month LIBOR quoted in annual terms?

If 3 month LIBOR is 0.22% and I want to find the interest rate with continuous compounding for 10 days do I multiply my principal by e^(10*r/90) or ...
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0answers
16 views

Determine if max profit/loss on group of option legs is unlimited

Say you have a group of option legs for a symbol either for a strategy like a vertical spread or maybe an iron condor. Each with different strikes, expiration dates, etc. Without identifying the type ...
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0answers
39 views

Does Fidelity Have a Python Trading API?

I'd like to do my trading through a corporate account at Fidelity, but there does not seem to be a Python api. What I'm looking for is something like this: https://github.com/jmfernandes/robin_stocks
1
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1answer
48 views

How to construct a GBP FVA curve from a USD FVA curve

Our business funds itself in 2 currencies, USD and ZAR. As a consequence we have a USD funding curve. I need to price a GBPZAR cross-currency swap (XIRS) against a counterparty with which we have no ...
4
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0answers
79 views

SABR vs Dupire: when to use what?

I was wondering for which products one would use the (AF)SABR model and for which ones Dupire's Local Volatility model. If I understand correctly, Dupire is by construction Arbitrage-Free but produces ...
1
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1answer
103 views

Who influences Forex prices and by how much?

May question is probably stupid, however I cannot find some reasonable explanation who (and to what extent) is influencing the prices at the Forex market. Most of the stuff I found on the Internet ...
-1
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2answers
146 views

The best “risk measure” for an investor who does not want to lose any of his seed money

Question There is an investor who is afraid of losing any of his seed money (initial investment). Variance of investment returns is not a problem to him. He is willing to take variance as long as he ...
2
votes
1answer
51 views

Derivation of mean-variance portfolio weights as closed-form analytical solution from Lagrangean equations

I am trying to find a closed form solution for the constrained MVO problem below. $\max_w w'\mu - \frac{\lambda}{2}w'\Sigma w $ s.t. $w'$1 = 1 The Lagrange for the objective is $L(w, \gamma) = w'\mu ...
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2answers
55 views

How does volatility affect an option payoff diagram? [closed]

I am a beginner to financial mathematics, and my lecturer asked me to ponder about how volatility may affect the value of an option (as a function of spot price). For example, if an option had a (...
0
votes
1answer
62 views

Longstaff-Schwartz for any optimal stopping

Let's say I have the stock of General Motors and I assume some fancy model for the price of this stock and I have to sell it within a month. Can I use Longstaff-Schwartz algorithm to determine the ...
3
votes
1answer
166 views

Optimal investment strategy problem with competing bet-sizing options and limited budget

Apologies for a potentially naive question and unusual wording. I am from another field and would be very grateful for help! I am looking for the optimal investment strategy that maximizes an overall ...
1
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2answers
237 views

How do I prove that a certain price is price of European option in Black-Scholes framework

I want to show whether the following price at t is of a european option in Black-Scholes Framework. $$S_tlog_e (S_t^3) $$ Is it just trying to substitute the function (and partial derivates) in the ...
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0answers
26 views

How option value default adjusted in jump diffusion model

According to the doc here: http://faculty.baruch.cuny.edu/jgatheral/JumpDiffusionModels.pdf. Formula 7 specifies that the option value under jump diffusion model becomes: So when the default ...
3
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4answers
286 views

What is the relation between the USD Swaps Rates and US treasuries?

I asked this question HERE and redirected to https://quant.stackexchange.com I understand a swap rate is the fixed leg on a IRS (source), and a swap spread is the difference between a swap rate and ...
1
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3answers
83 views

Interpolating Libor 9M rate?

Libor atm is: 3M = -0.54486 % 6M = -0.52514 % 9M = 1Y = -0.47443 % How to retrieve the 9M Libor rate?
0
votes
1answer
34 views

Mapping One symbol's Support/Resistance to another Symbol

I wish to map and display the Support/Resistance lines (i.e. SMA20_daily) of ES onto NQ graph as I think they are mutually effecting each other, how may I achieve this? Do I need to do some kind of ...
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0answers
30 views

Quantlib simulating options with different evaluation dates

Im given a dataset of option data that looks like this. ...
1
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2answers
158 views

Reinforcement learning in finance

In brief, what are some mainstream and recent applications of reinforcement learning in finance that fall outside of the usual scope of agent-based modeling?
1
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2answers
118 views

MLFinLab package for financial machine learning from Hudson and Thames

Has anyone tried MFinLab from Hudson and Thames? The full license is not cheap, so I was wondering if there was any feedback. (Github repository)
2
votes
1answer
86 views

Greeks for Futures [closed]

Is there some general result on the sensitivity of futures price to its maturity? For example, I have two futures on the same underlying, but maturing at different dates. Can I say which one is more ...
4
votes
2answers
206 views

Question on Xccy swaps curve observability

Trying to get a sense of the following ... In some emerging markets such as Argentina, there isn't any observable IRS swap curve, but only Xccy. I noticed in the place I work that FX NDF are used to ...
0
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1answer
49 views

Close Volatility - Open-Close Volatility

Could anyone please give the detailed expression of either the close-close or open-close volatility ? Thanks
2
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0answers
36 views

Characteristic function for heston model with jumps in price and variance

I need the characteristic function of the Heston model with jumps in price and variance, or in other words, the characteristic function of the Bates model (1996) adding jumps in the variance dynamics. ...
1
vote
0answers
55 views

Please help me understand this dataset regarding stock prices

I am supposed to predict column E but I cannot figure out what any of these columns mean. The information provided with the dataset is as follows: column A: past 28 week slope value column B: past 48 ...
1
vote
1answer
54 views

Metrics to apply to trading strategies [closed]

Other than average gain, average loss, and accuracy, what other metrics might be helpful if you were to attempt a new trading strategy? Is there any oddities of mathematics that you would take into ...
3
votes
1answer
127 views

Can we model Implied volatility using GARCH?

Can I use Implied volatility as a dependent variable in a GARCH model? I believe my IV data shows ARCH effects and hence can I use it to model volatility of the volatility? I know literature has used ...
0
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0answers
21 views

Availability of historical data on variance swaps [duplicate]

I want to do research on variance swaps. Where can I get/buy historical data (other than Markit)?
3
votes
2answers
289 views

Closed-form analytical solution for the variance of the minimum-variance portfolio?

The portfolio weights vector of the minimum-variance portfolio has a closed-form analytical solution, $$\boldsymbol{w} = \frac{\boldsymbol{\Sigma}^{-1} \boldsymbol{1} }{\boldsymbol{1}^\top \boldsymbol{...
0
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0answers
34 views

Why do some market makers have many Market Participant Identifiers (MPIDs)?

I noticed that some (most?) US market making firms have many Market Participant Identifiers (MPIDs). For example, from the list of NASDAQ market participants1: "Jane Street Capital, LLC" ...
0
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0answers
13 views

How should crowdfunding be booked on the income statement, balance sheet, and cashflow statement?

This regards the financial model for a startup. Crowdfunding comes in. Months later a product is released. Using an interconnected 3-statement financial model, how should the crowdfunding be booked in ...

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