All Questions

-1
votes
0answers
14 views

Fama French 3 factor model regression

I have a question concerning the Fama French regression model. Can I use (return on each stock-risk free rate ) as my dependent variable or do I have to use instead (return on each portfolio-risk free ...
0
votes
0answers
19 views

Bachelier Pricing Formula for Interest Rate Binary Options

Similarly to the Black and Scholes formula, I am looking to replicate Bachelier's caplet formula with two digital options: (1) asset-or-nothing (forward rate in this case) and (2) cash-or-nothing. For ...
0
votes
0answers
39 views

Having 100$ as the minimal profit per transaction

I am working to build a reinforcement agent with DQN. The agent would be able to place buy and sell orders for a day trading purpose. I am facing a little problem with that project. The question is "...
1
vote
1answer
50 views

Free E-books for students on Volatility Models

Some e-books are free for students when they are on the university IP. So can anyone provide a list of free e-books for students and free e-books in general about (stochastic) volatility modelling?
0
votes
0answers
17 views

Commodity Asian Swaps

I'm trying to find info about asian swaps on oil/energy products and about their pricing methods. However, all I could find are on asian options. Would be glad if you can provide me with some ...
0
votes
0answers
19 views

What volatility to use to estimate BDT?

I am attempting to estimate the value of a bond with prepayment option (callable bond). In order to do so, I am fitting a lattice to the Libor Swap curve using a BDT model. The measurement date is ...
0
votes
1answer
30 views

Do you optimise models on boostrapped time series?

As Quants, we soon learn to optimise models, by fitting them to historical time series, e.g. the historical daily returns of some stock. But the historical series of daily returns is just one ...
1
vote
2answers
59 views

ETF Replication

I have a question regarding the ETF replication methods. I know there are two main methods, namely physical and synthetic replications, but I would like to understand how an ETF trader can : ...
1
vote
1answer
21 views

Proper maturity in the Merton's model

I am working on a credit rating project using Merton's model. Basically it adopts Black-Scholes that equity value can be viewed as a call option with a strike price of face value of debts. Since the ...
0
votes
0answers
15 views

ISSUER data for a reference data management system [duplicate]

we are building a reference data system from scratch. I am planning to use the bloombeg issuer equity ticker to download the information on the issuers. However, I dont seem to find issuer data for ...
1
vote
0answers
37 views

Butterfly Arbitrage condition

I hope anybody can help me. According to Gatheral and Jacquier (https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2033323) no Butterfly Arbitrage can be expressed like this: Define the function $\...
0
votes
1answer
43 views

Calculating value of bond

The bond has a facevalue of 40 and maturity of 20 years. It produces 0 coupon payments during the first 6 years but pays coupons of 2 annually during the last 14 years. The discount rate is 7%. The ...
0
votes
0answers
14 views

Regarding Issuer [on hold]

We have below mentioned Asset Classess like Equity Credit Interest Rates FX Commodities Can you please tell us answer for below questions. 1. Which all above mentioned asset classes has the issuer 2....
0
votes
0answers
10 views

Literature on return sensitivy in respect to: growth, risk and profitability

I am currently writing my master's thesis, wherein I am looking for supporting literature. Specifically, I wanted to know if there had been any research relating to how the: growth, risk and ...
1
vote
2answers
161 views

Justification of Levered ETFs?

I have done some basic research on levered ETFs and cant understand them completely How do you justify the existence of Levered ETFs when margin accounts are available? E.g. If I want 3X SPY returns, ...
3
votes
0answers
54 views

Reference request for research on the maximum drawdown **ratio** (NOT value)

Let's suppose the asset price process follows a Geometric Brownian motion $S_t \sim GBM(\mu, \sigma),\,t\ge 0$, and define the two process: $$ \begin{align} \text{MSF}_t &:= \max_{\tau\in[0,t]} S_\...
0
votes
0answers
20 views

How does CVaR change when the mean and variance of the loss distribution change?

I have a CVaR constraint in my optimization problem and I want to change the mean and standard deviation of loss distribution during each iteration. How can I get the new CVaR based on the old CVaR ...
0
votes
0answers
31 views

Is this the correct way to forecast stock price volatility using GARCH

I am attempting to make a forecast of a stock's volatility some time into the future (say 90 days). It seems that GARCH is a traditionally used model for this. I have implemented this below using ...
0
votes
0answers
40 views

Use of Seasonal Trend Decomposition using Loess (STL) in R for seasonality adjustment

When I decompose a time series using stl in R is the trend output simply the seasonally adjusted data that I can then use in my model? Or do I need to make further adjustments? Ultimately, I need to ...
-1
votes
1answer
55 views

Bloomberg SWPM: Day count to calculate discount factor for US0003M

I'm trying to replicate price I get for CCIRS in SWPM. This is USD3m float vs RUB 1Y. Second leg doesn't matter for my question. Suppose today is 7th of Jan 2019, deal date. Settlement will happen on ...
1
vote
0answers
30 views

VaR of ARCH model

Consider the following: $r_t = \theta r_{t-1}+u_t$ $u_t=\sigma_t\epsilon_t$ $\sigma^2_t=\omega+\alpha u^2_{t-1}$ $-1<\theta<1,\omega>0,\alpha \in(0,1)$ What is the 99% 2-day VaR of a ...
3
votes
0answers
36 views

Is Ledoit-Wolf Shrinkage with a Constant Correlation Prior Reasonable for a Stock/Bond Mix?

I've been looking into Ledoit-Wolf shrinkage but I've found the papers concentrate on large numbers of assets that tend to all be highly correlated. Often a universe of large cap stocks. I'm ...
1
vote
1answer
37 views

Fama Macbeth regression and portfolio sort result contradiction

I ran Fama Macbeth (regression) on two variables called return and lag MAX ( monthly average return and lag of maximum return over a month). the results are like the following : ...
2
votes
0answers
44 views

Dealing with Inventory Risk - Paper

I am reading the paper - Dealing with Inventory Risk and I am having trouble understanding a point made in the paper. The author(s) say towards the end of section 2 that: and says that: $ \mathcal A ...
1
vote
0answers
12 views

Volume or Dollar bars vs. volatility normalized and demeaned financial time series

In his book - Advances in Financial Machine Learning, Marcos Lopez de Prado familiarises the reader with a number of ways of normalizing our financial time series data. Below I provide a couple of ...
1
vote
1answer
37 views

Calculating beta when holding market portfolio

Suppose that CAPM holds and that you hold a portfolio of the market portfolio and the risk-free asset with weights equal to 0.74 and 0.26 respectively. What is the beta of your portfolio? My ...
3
votes
1answer
72 views

How modern portfolio theory(MPT) and CAPM are related?

1. Question In what sense Capital Asset Pricing Model(CAPM) is related with Modern Portfolio Theory(MPT)? Why do we need to check whether the current price of assets is overvalued or undervalued ...
0
votes
1answer
50 views

What do I call the combination of two or more prices when doing arbitrage?

Suppose that I’m doing forex arbitrage between multiple currencies. A possible arbitrage strategy is to combine the currency prices in pairs and then evaluate if there is a chance to make a profit. ...
-1
votes
0answers
33 views

CVA of Payer v/s Receiver Swap

Why is that the CVA for a Payer swap more than that of Receiver swap for an IRS?
1
vote
1answer
39 views

calculation of daily risk free rate?

I need to get daily risk free rate to measure my Capital asset pricing model. However, I am still confused on which proxy to use for that (my sample comprises German stocks). Some empirical studies ...
0
votes
0answers
32 views

Best database source to download large number of stock prices

I am wondering what databases exists where I can download stock prices from 2006 to today with the following features 1) using Python API 2) using Bloomberg tickers (e.g. AAPL US Equity) 3) free ...
2
votes
2answers
54 views

Arbitrage-free calculation of flat term structure out of normal term structure for e.g. pricing european options

since e.g. the Black-Scholes model requires a constant interest rate (flat term structure) but the real world often has normal term structure, I was wondering if it is mathematically correct to ...
6
votes
1answer
79 views

Show that $(W_t, \int_0^t W_s ds)$ has a normal joint distribution

I have to show that, if $W_t$ is a 1-d Brownian motion then $\biggl(W_t, \int_0^t W_s ds\biggr)$ has normal distribution. Hint: apply Ito formula to this bivariate process. Any idea or suggestion on ...
0
votes
0answers
50 views

Trade sizing with market making and the volume of uninformed trades

I have a trend following market maker in a highly volatile market (XBTUSD) which makes its money from uninformed trades over a short time horizon. Sizing my bids/asks has always caused me to question ...
-1
votes
0answers
38 views

Interest Rate Model Validation

I am a FX trader intending to switch to market risk and was just curious to know from practical experience of people out here that what exactly is the role of an interest rate model validator and what ...
2
votes
0answers
32 views

Transformation of random variables and second-order stochastic dominance

Suppose $X$ and $Y$ are two random variables where $X$ SOSD* $Y$. Let $g(\bullet)$ be a monotonic function and $X'=g(X)$ and $Y'=g(Y)$. Under what conditions of $g$ is $X'$ SOSD $Y'$? I know if $g$ ...
0
votes
3answers
72 views

Which stock tick has its geometric asian call?

Many finance books introduce the pricing on geometric asian call/put options underlying black-scholes model, since its price has its explicit formula. I am not sure, if geometric asian option is ...
3
votes
2answers
35 views

What are the underlying events that the random variables map to the real line in the derivation of the Black-Scholes PDE?

When we first try and set up a model for the evolution of S, the value of the underlying stock, I have seen in a lot of textbooks that they model the evolution by the formula $$\frac{dS_t}{S_t}=\mu dt+...
0
votes
1answer
34 views

Short sale and zero investmest strategy

Suppose I want to build a pairs trading strategy. Theory says that we can create a zero-investment portfolio by going long stock A and short-selling stock B, given a certain hedge ratio. My question ...
-2
votes
0answers
34 views

Ideal way to automate crypto hedge fund strategies [on hold]

What is the best way to automate hedge fund strategies for the crypto markets? Assume the strategies intended are profitable point-and-click. Would you adapt existing financial software for crypto ...
1
vote
1answer
59 views

Rolling Winsorization for Time-Series

I'm running a multivariate time series analysis and need to deal with some outliers. I'm thinking about using a rolling winsorization (e.g., pull anything above 99.5 percentile and replace with the 99....
1
vote
0answers
23 views

Implied Equilibrium Returns Example

I've been trying to work through a simple example using A Step-by-Step Guide to the Black Litterman Model, but I'm having trouble understanding implied risk aversion. Say I have two uncorrelated ...
0
votes
0answers
21 views

Getting security-level fund holdings, quarterly, from 1940 Act Funds (particularly Fixed Income)

Mutual funds of a sufficient size operating under the 1940 Investment Company Act are required to disclose their security holdings to the SEC on a quarterly basis. I understand that Morningstar also ...
0
votes
0answers
25 views

Why isn't the Sharpe ratio risk free rate determined for each time period separately?

When calculating the Sharpe ratio why is the same risk free rate (90 day T-Bill) rather than the risk free rate for each individual period used?
3
votes
0answers
36 views

Volatility surface fitting, interpolation and extension from sparse data

There are some nice papers about constrained spline fitting essentially giving you a smoothing and arb free surface. I am focusing on the oil market here: The market is essentially split in a very ...
0
votes
2answers
32 views

Seagull Spread payoffs

I'm looking at different option strategies and the ways that their payoffs differ (and therefore how they can differently be used). I'm looking at the long seagull (buy a call spread and sell a put), ...
1
vote
1answer
84 views

How did Dickey and Fuller know something was wrong?

I am interested in testing if there is size distortion through simulations. I have recently been interested in replicating Dickey and Fuller (1979) and this source from another post helped a lot, here ...
0
votes
2answers
114 views

Quant Interview Course [on hold]

I there any course on for quant that covers all the factors such as logical reasoning, puzzles, statistics, probability, time series analysis, portfolio management, options, machine learning, and ...
0
votes
0answers
11 views

Paying Filipino workers in USD. What should the inflation rate be? [migrated]

I'm not sure where to ask and, since this is not Personal Finance, I'm gonna ask it here. Here's my situation: for the past 2 years, I hired and trained a team of Filipino workers. They are paid in ...
3
votes
3answers
142 views

Modelling HFT data

In the context of Market making, how important is recent trades? In general, would i be able to get away with just modelling the Limit Order Book (LOB) and the evolution of the LOB in order to ...

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