# All Questions

53 views

### Accurately calculating Greeks for options near expiration

I understand that when a vanilla European option is near expiry, the Theta calculated from BS formula is very inaccurate and almost meaningless for practical use. However, I'm not sure if other ...
38 views

### CAPM - Do I use start or end of period prices?

If I use monthly price data in the standard CAPM, should I take the price at the beginning or the end of the month? What is the convention? Or does it not matter? Is there any literature that deals ...
29 views

### Open source code based on quandl for security analysis and options priming

Quandl seems to be an excellent source of wide range of free/open financial data. But is there an open source code or platform that uses the quandl datasets to perform security analysis and option ...
38 views

### Calculating VaR of an Incomplete Distribution

I am currently completing a multiple choice question that has stumped me. An asset has its price and its corresponding probability described as: 100, 0, -50, -70 and -90 with probabilities 50%, ...
79 views

### How Much cost to setup trading platform such as Flextrade, portware, Sungaurd or Bloomberg for hedge fund?

Basically if someone want to setup a hedge fund how much cost to buy trading software such as Flextrade, portware, Sungaurd or Bloomberg for hedge fund?
17 views

### Getting a better return on multiple combined stocks, than individual stocks gains. Kind of like a sports accumulator

Ive identified 4 stocks that i think will gain 10 - 20 % when their next quarterly report is released. If you've only got access to a small amount of capital say USD10,000 the by buying USD2,500 ...
26 views

### Stochastic volatility and forward start contracts

Why is it more accurate to use stochastic volatility when pricing let's say a forward start option (ie an option priced today but striked in a future date) ?
38 views

### When is option value inversely related to expected volatility?

It is common knowledge that the greater the expected value, the higher the option value. However, there are surely exceptions, as written by Paul Wilmott's FAQs in Quantitative Finance Q: If you ...
71 views

### approximating fBm stochastic integral

Suppose I have the following stochastic integral: $$\int_a^b f(t)dB_H(t)$$ with the term $dB_H(t)$ a fractional brownian motion with associated $H$ parameter. Is it true that for $H \in (1/2,1)$, ...
60 views

### Mathematically: How does increasing the number of assets reduce idiosyncratic risk?

As part of an Asset Pricing Module I'm currently taking, whilst looking at APT Ross (1974), we looked at how according to this model, risk originates from both systematic and idiosyncratic asset ...
19 views

### short selling with collateral accounting

I don't know how the accounting works for short selling with collateral: For example if a stock is \$10 a share and turn out to be$15 a share a week later. At time 0, you borrow and sell 10 shares ...
37 views

### trading strategy problem - initial capital x buys S over time [0,T] at the constant rate of x/T euros per unit of time

I am looking for clarification to the trading strategy problem where the number of stocks is depending on time. In the Market with zero safe rate and stock dynamics defined as ...
48 views

### Which close price should we use for machine learning?

I am building a machine learning model using historical prices and I am using data from yahoo finance. Currently yahoo finance data have two close prices one normal close price(close) and other ...
91 views

### How to work out the forward outright price from the bid/ask quotes?

I'm facing this problem: Spot AUD/USD is quoted at 0.7634/39; six-months swaps are 112.1/111.1; at what forward outright rate can a price taker sell USD value spot/6 months? On the spot ...
31 views

### Combos on close SPX

I am wondering if anyone has any information on how combos on close trade. I've been looking at the BTIC (http://www.cmegroup.com/trading/equity-index/btic-block-trades.html) and was wondering if ...
27 views

### What are “df”, “t”, and “p” in these sharpe ratio related estimates?

I am looking at some sharpe ratio related estimates and have not seen Sharpe stats broken down this way before. I don't know what is meant by df, t, and p. Can someone explain that to me? Thank ...
40 views

### Portfolio Theory: Must VarCovar Matrix be based on return var/covar?

I am trying to estimate the minimum variance portfolio where the assets are currency derivatives. In the specific case it does not make sense to base correlations or variance on asset returns. I am ...
32 views

### Regime switching model getting data

I am trying to find a dataset (oil prices, S&P index, DAX returns etc.) in order to visualize the high volatility and low volatility periods in a plot. So far, I have not found a dataset that has ...
74 views

### Training data for Black Scholes

What sources of data suitable for training approximations to Black-Scholes are freely available to academics? My understanding is that the parameters to Black-Scholes are: share price strike price ...
41 views

### long fra and a short ed future with same fixing dates, is convexivity negative or positive?

If you are long a FRA (forward rate agreement) and short a ED　（Eurodollars) future with the same fixing dates, do you have positive convexity or negative convexity? Why? According to the following ...
54 views

### Calculating PCA hedge ratio for 3-leg spread

I'm wondering how can I find PCA hedge ratio for a 3-leg spread? I've taken the simple steps laid out in here. I've taken some treasury futures data for 2yr,5yr,10yr and ran the PCA. The first ...
44 views

### question regarding carry & roll of a bond

I have a simple (and might be a dumb) question regarding the calculation of a bond's carry. If someone doesn't take into account cost of financing (e.g. the repo rate) then the bond's approximate ...
44 views

### How to create time series with lagged in R [closed]

Would anyone else advise me, how to create time series with lagged in R. I would the result is the difference with lagged, there is a function Delt() but the result is the percentage change. Please ...
58 views

### Calculating floating P&L of a FIX-order [closed]

How to fetch floating p/l(current) of a "filled" FIX-Order (either buy/sell)?(by its FIX-ID/order ID) I asked my FIX provider(Integral) & they said, there's no specific tag for that/not a ...
62 views

### Replication strategy of European call option

So the question asks: L et $S(0) = 120$ dollars, $u = 0.2$, $d = −0.1$ and $r = 0.1$. Consider a call option with strike price $X = 120$ dollars and exercise time $T = 2$. Find the option price and ...
45 views

### Zero-rate USD Curve

Good day, I have inputs: Libor 1D, 1M, 2m, 3m. FRA 3x6, 3x9, 3x12 IRS 2Y, 30Y. What formula should I use to construct zero rate curve? Thanks
21 views

### Mechanics of futures contracts: with respect to which time reference is the variational margin calculated?

Consider the following situation. My futures exchange, Futures Inc., is open for business 9AM till 5PM EST. A few days ago I assumed a long position in a futures contract, $C$, on one unit of some ...
49 views

### Definition of Financial Futures: The value of a futures contract

According to the opening paragraph of the Wikipedia article for "Futures contract" In finance, a futures contract (more colloquially, futures) is a standardized forward contract which can be ...
64 views

### Kalman Filter in Interest Rate Models

A couple questions regarding the use of Kalman filtering in estimating parameters of short rate models: 1) In Duan & Simonato (1995), which seems to be one of the earliest applications of the ...
57 views

### L1 norm regularization of Markowitz portfolio in matlab

Markowitz portfolio with L1 norm regularization added L1 norm regularization based on the original model. The constraint equation is as follows: The following code is the original Markowitz ...
32 views

### Monthly market value data of indices: where to get?

I am currently working on a paper related to portfolio optimization. As of this moment, I am considering to use a dataset consisting of the following indices: MSCI World MSCI Emerging Markets SP ...
44 views

### Replicating option strategies

I was curious if there was any references to replicating option strategies i.e. bull spread, bear spread, butterfly, strangle, straddle, etc...? Also what is the insight into replicating of these ...
76 views

### Linear combination of payoffs of bull and bear spreads

Write the following payoffs as linear combination of call options with different strikes and possibly some cash and give the closed form formula for them. Attempted solution: The payoff for the bear ...
32 views

### two-period binomial model, with price that is path-dependent

Consider a two-period binomial model for a risky asset with each period equal to a year and take $S_0 = 1$, $u = 1.03$ and $l = 0.98$. How do you price a look-back option with ...
57 views

### Which value to use as shape parameter for Black-Scholes lognormal distribution?

When working with Scipy, lognomal distribution is defined by 3 parameters: the median (loc), the scale (standard deviation or, in our case, the implied volatility) and the shape parameter. But, which ...
43 views

### Design models using adjusted or unadjusted stock prices (time series prediction)?

I'm creating a predictive model for closing price of stocks (using neural network and support vector machines.). Is it appropriate to use adjusted prices or unadjusted prices for this prediction ...
42 views

### Trying to calculate WACC (Weighted Average Cost of Capital) for this (small) data set

I've attached the data set I'm working with to this post. I'm trying to calculate the WACC using this data. I found a formula here: ...
38 views

### Conversion factor and CTD Bond

I'm reading the book 'Options, Futures and Other derivatives' an having a hard time to understand Conversion factor and CTD bond. Conversion factor I understand this as a factor to adjust the ...
51 views

### Convexity in Markovian contingent claim

Background information: I believe we can use Jensen's Inequality here Show that if the payoff function $V(S_T)$ is a convex function on $S_T$, then the Markovian European contingent claim with ...
34 views

### how to find the weights in a portfolio? [closed]

Compute the weights in a portfolio consisting of two kinds of stocks if the expected return on the portfolio is to be $E(K_v)=10\%$, given the following information on the returns on stock 1 and 2:  ...
26 views

### Compound and continuous interest in the context of debt

I'm trying to figure out the concepts "compound and continuous interest". This article explains the material very well in the context of a savings account. However, I find it difficult to transfer my ...
48 views

### Duration of a floating rate bond

It is known that the price $p_t$ of a floating rate bond can be calculated discounting $(L+k)$ the sum of the next coupon payment $k$ and the face value $L$ at the relevant risk-free rate. Hence, ...
Background information: Consider a European contingent claim with payoff $V(S_T)$, where $V: \mathbb{R}_+\rightarrow \mathbb{R}$ is a function which assigns a value to the payoff based on the price of ...