Questions tagged [finance]

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623 views

portfolio optimization with a loop

I am attempting to minimize the variance of a 3 stock portfolio using optimization within a loop. What I have done is calculated the stock returns and cov matrix from dates 1980-01-01 to 1989-12-31 ...
2
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0answers
153 views

Keynesian Multiplier [closed]

I am taking a degree in macro economics, and am at a juncture where knowledge about the Keynesian Multiplier is imperative. Though I've been at the lectures, read the literature and scoured the web, I ...
2
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1answer
176 views

Projecting a Thiele differential equation with Black Scholes returns

I am trying to solve the equation $\frac{d}{dt}V(t)=r(t)V(t)+\pi-\mu(x+t)(b_d-V(t))$ numerically using the R function 'ode'. This is a Thiele differential equation for a life insurance reserve with ...
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2answers
6k views

A libor curve VS A 3-month or 6-month libor curve

I'm very confused about the terms regarding libor curves in general. When people talk about libor curve, I picture it as a curve with different libor maturities (i.e. 1 week, 1 month, 3-month and 6-...
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2answers
70 views

Question on earning per share

For 2009, Flamingo Products had net income \$ 1,000,000. At 1 January 2009 there were 1,000,000 outstanding. On 1 July 2009,the company issued 100,000 new shares for \$ 20 per share. The company paid \...
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1answer
54 views

QQQ fillings history

I'm trying to find Invesco QQQ Trust fillings for 2001-2018 time period, at least top 10 by year, do you know where I should search?
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2answers
980 views

Test statistical significance of a trading strategy

I have created a trading strategy which operate every single day on the DAX 30, for the last 1700 trading sessions (some years). I have the daily returns of my strategy and also the daily returns of ...
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1answer
172 views

Question about the stochastic differential equation in the Merton model

in the following stochastic differential equation merton model we have $$\frac{ds}{s}=(\alpha-\lambda k)dt+\sigma dW+dq$$ where $\alpha$ is the instantaneous expected return on the stock; $\sigma^2$...
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1answer
96 views

Get discount factors with limited knowledge?

I am facing the problem of just having this information: 6% coupon bond with 2.5 years to maturity, traded at a 100% clean price 4% coupon bond with 1.5 years to maturity, traded at a 98% clean price ...
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1answer
1k views

Why is delta-hedging of ATM options near expiry difficult to do? [closed]

Can someone explain to me why the delta-hedging of ATM options near expiry is difficult?
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1answer
99 views

Brownian Motions theorems

I know that if $W$ and $W′$ are two independent brownian motions, then $dWt \ dWt′$ = 0. How can I prove/demonstrate this theorem? Additionaly, how can we prove that if $W$ and $W′$ are dependent, ...
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1answer
302 views

How to calculate one-year forward one-year rate? [closed]

I'm just a little lost on how to calculate forward rates. I know this is an easy question, but, if we are given a one-year and two-year zero rate (let's say, for the sake of the argument, 2% and 3% ...
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2answers
131 views

Getting a list of all trading days?

I have a large dataset (taken from Kaggle: https://www.kaggle.com/borismarjanovic/price-volume-data-for-all-us-stocks-etfs/), and I would like to fill in the missing data. To do that I can (1) ...
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4answers
684 views

List of ISIN for Options, Swaps, Derivatives?

In pages like isin.org or openfigi you can search by an ISIN and you will get information about the share, bond, fund... However, for options , derivatives the search returns 0 results. Is there a ...
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1answer
88 views

Towards a standard day count convention in Finance, what the standard should be?

I recently found out about the multitude of day count conventions in Finance (e.g.wikipedia and stackexchange). As far as I understand the reason for this variety is a long history of diverse usage. ...
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1answer
798 views

Pricing log-contract with Black-Scholes PDE

I was wondering if someone could help me with a problem, regarding the Merton Black Scholes PDE. I have an exam soon and this question on an old exam has been bothering me and a friend for quite a ...
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3answers
122 views

Suppose i want to track S&P500 index using 15 stocks, how do i adjust their weights?

I am given 15 stocks (which is listed in NYSE), and want to track/replicate the S&P500 index. So i am currently have the information about the stock price, and given some capital to invest in (all ...
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1answer
120 views

How does buying back stock affect a company's credit spread?

How does buying back stock affect a company's credit spread? Would it cause it to get smaller? Any clarification would be appreciated.
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1answer
4k views

What are DGTW adjusted returns?

Many papers, e.g. in The Journal of Finance, discuss DGTW adjusted returns (or DGTW abnormal returns) instead of just returns. What are these and how does one compute them?
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3answers
888 views

Given monthly returns of 10-Year Govt Bond, how to get monthly risk free rate of return

I have a list of monthly returns of a 10 year Govt Bond. I am not sure if this is a good proxy for the monthly risk free rate of return. Can somebody suggest how I can derive the monthly risk free ...
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1answer
67 views

Modeling mortgage loan defaults

I have a machine learning model trained with a list of mortgage features that include macro variables where the field to predict (the label) is "Mortgage Defaulted" = 1 or 0 (Yes or No). Now, I need ...
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2answers
94 views

Financial Statement Analysis [closed]

So i have just completed a beginners course on understanding financial statements. As part of the final assignment, we are supposed to pick a real company, study its financial statements and conclude ...
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3answers
291 views

What does Volatility Smile tell? [closed]

Could you please share your opinions about Volatility Smile? What does it tell us when it gets more convex or when its level changes over time or any other change on it. Any paper/work/blog ...
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1answer
77 views

Portfolio Variance - Explanation for equation : Investments by Zvi Bodie

Source: Investments 10th Edition by Bodie, Zvi. Page 227 Chapter 7 In Equation 7.17, the book breaks the variance into two parts. I can't seem to understand why the 1/n is represented outside the ...
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1answer
787 views

Fama MacBeth cross-sectional Regression

I am deeply confused right now and hope someone can help me out a bit. I want to replicate part of a paper from Fama/French (2008), Dissecting anomalies, specifically, Table IV "Average Slopes and t-...
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1answer
137 views

CCAR Shocks Scenario

I was going through CCAR-2018-severely adverse market shocks file and under the tab: Equity by Geography, I found these shocks. I have two questions: 1) Whether the shocks to Vol points are in % ...
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2answers
216 views

A definition of quantitative finance [closed]

I would ask a sort of "philosophical" question. Is there any author who gave a scientific definition of this subject? Is it considered a branch of mathematics or does it primarily concern economics? ...
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1answer
840 views

Can tobin's Q value for a firm be negative?

Can Tobin's Q value for a firm be negative? I am calculating Tobin's Q value using Compustat data for firm i and year t. I am using the formula presented in Chung and Pruitt(1994) - Q = (Market ...
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2answers
959 views

Ledoit-Wolf Shrinkage estimator not giving positive definite covariance matrix

I used ten year daily data for 407 stocks and computed the daily and monthly covariance matrices. Since I have more variables than observations for the monthly matrix, I wasn't surprised to find the ...
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2answers
4k views

What are the properties of Max and Min functions?

I am having trouble understanding the transition from the third line to the fourth line. I see how it works through cases, but is there a general property that allows this?
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3answers
11k views

where can i get data for foreign exchange order flow

I need data for my thesis research on liquidity of foriegn exchange for order flow (aggregated daily) per currency traded for a period over the last 10-15 years. help!!
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1answer
62 views

Why is the discount function non increasing if pure cash holdings are feasible?

I am struggeling with the question, for example lets take a swap with rate of 3.2 for one year and 3.6 for 2 years and Discount Factor 0.96899 for the first year and 0.93158 for the second year. ...
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1answer
3k views

How to apply Ljung Box Test?

I am checking the closing prices(about 9000+ prices) of the stocks data to test for randomness. The test I am using is Ljung Box test, in MFE toolbox for MATLAB, I used 300 data of closing prices, ...
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1answer
117 views

Reducing pricing errors (Alpha) in the CAPM with Bitcoin

I have been trying to examine, using the CAPM, if Bitcoin belongs in the market portfolio or not. With 10 industry portfolios from http://mba.tuck.dartmouth.edu/pages/faculty/ken.french/data_library....
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1answer
45 views

Equal Weight better sharpe than Tangency portfolio

Could you explain to me what it means to have better Sharpe Ratio in Equal Weight portfolio than tangency portfolio (max sharpe). Thank you.
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1answer
34 views

How to measure the impact of regulation on fund fees?

I want to measure the impact of mandatory disclosure on inducements on fees. I thought about doing a difference-in-differences analysis around the date of the new regulation with mutual funds as the ...
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1answer
86 views

Questions related to Sharpe's return-based style analysis

I have been reading about Sharpe's return-based style analysis, which tries to determine the manager's exposure/effective asset mix to changes in the values of the asset classes. It does so by using ...
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2answers
136 views

Fractal market hypothesis testing

I would like to do an analysis on the AEX stock exchange index for the last 20 years, but I ran into some issues. It would be really appreciated if you can answer my questions: In order to apply ...
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3answers
2k views

How to convert weekly data to monthly in r (or in Julia)

I have weekly series on financial risk index data as follows: DATE NFCIRISK 1/8/1971 0.58 1/15/1971 0.61 ......through 10/6/2017 -0.88 10/13/2017 -0.89 10/20/2017 -0.89 ...
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1answer
172 views

What causes discontinuities with stock prices

With reference to the figure above, why is it that the price at which the stock closed at on monday not equal to the open price on tuesday? Is this discontinuity due to an adjustment in the price to ...
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1answer
45 views

Binomial Model, Number of nodes from $t = 0$ to $t = n$

How many paths are there in a binomial model from time $t = 0$ to time $t = n$? How many nodes (states) are there? Intutively it seems that there are $2^n$ paths and $2n - 1$ nodes. But I am not sure ...
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3answers
379 views

Best known performance of stock prediction algorithms

I asked this question here and was directed to answer it on this stack exchange. My question is very simple. What is the best [known] performance of a stock prediction algorithm? I've seen papers ...
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2answers
495 views

how negative rates (mr and rf) affect CAPM

I don't understand how the negative rates factor into this and what it means in the market ...
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2answers
283 views

Linear combination of geometric Brownian motion

Let $X_t= e^{\left(\mu-\sigma^2/2 \right)t+\sigma W_t}$ be a geometric Brownian motion with drift $\mu$ and volatility $\sigma$. I am trying to find an analytical solution to $$\mathbb{E}\left[ \max(...
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2answers
214 views

Using IRR to calculate future value of cashflow

Discounting a cashflow using given forward rates will result in the following present value: PV = 102.875 = ${5\over (1+3\%)}$ + ${5\over (1+3\%)(1+4\%)}$ + ${105\over (1+3\%)(1+4\%)(1+5\%)}$ where ...
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1answer
327 views

How to use WACC for investment?

How to use a value of WACC? I have calculated WACC of company to be 7%. What if company had smaller or bigger WACC? Which one would attract investment?
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2answers
95 views

Why is Delta Hedging a Hedge Against Short Position? [closed]

Consider the usual one-period binomial model. The delta-hedging formula, following Shreve's convention, is: $$\Delta_0=\frac{V_1(H)-V_1(T)}{S_1(H)-S_1(T)}$$ Shreve states: "The agent has ...
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1answer
128 views

Correlated stock prices and geometric Brownian motion

I have two uncorrelated stocks which follow geometric Brownian motion, as follows $$\begin{aligned} dS_a &= \mu_aS_adt + \sigma_aS_adW\\ dS_b &= \mu_bS_bdt + \sigma_bS_b dW \end{aligned}$$ ...
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1answer
290 views

Relationship between CML and SML

I am referring to the book Sharpe et al. (1998), Investments, 6th Edition. I am trying to wrap my head around some lines from the book, pertaining to Security Market Line. It reads: Earlier it was ...
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1answer
51 views

What preprint repositories are available online?

Besides data sources, what preprint archives are available for academics and practitioners in the fields of Quantitative Finance and Economics? I have subscribed Google Scholar alerts and regularly ...