0
votes
1answer
22 views

Why theta multipled by days to expiry exceeds the total time premium of the option

Sometimes, I find an option where the total time value of the option may be 5 cents(rest is intrinsic value) and there are about 15 days to expiry and theta is .08 (8 cents). How is this possible. If ...
0
votes
1answer
14 views

Assessing stock price movement from implied volatility

If: Underlying is at 100 Implied volatility of ATM call/put is 30%. Then expected 1 standard deviation move over the next month is calculated as:(100 * .3)*sqrt(30/252) = 10.35 points. Is this ...
0
votes
0answers
5 views

How do estimate parameters of geometric brownian motion with time-varying mean?

Does anyone know how to estimate $A$, $\sigma_1$,$\sigma_2$ from the following system? $$dx = \mu_t x dt + \sigma_1 x dB_x$$ $$d\mu = A(\bar\mu - \mu) dt + \sigma_2 dB_\mu$$ Variation in $x$ could ...
0
votes
1answer
41 views

Risk minimization by investing in all assets with positive expected return

Suppose I have an amount $T$ to invest and $N$ available assets. The stochastic return per invested unit of asset $i$ is $R_i$. The variance and the expectation of $R_i$ are $\sigma^2_i$ and ...
0
votes
0answers
3 views

What is an appropriate algorithm to use for tax loss harvesting?

I've been reading into how Betterment and Wealthfront have architected their tax loss harvesting algorithms, but they stop short of providing any real examples. Essentially, they both reduce to: ...
0
votes
2answers
676 views

how to calculate a cross-currency swap in basis pt?

This question has been bugging me for awhile now and I've been trying to find a definite answer, however, no avail... My question, in specific, relates to the USD/CNH CCS rate. From what I understand ...
4
votes
1answer
60 views

Deriving the definition of stochastic integrals with respect to Ito processes from first principles

When I first encountered the definition of integrals with respect to Ito processes (Shreve's Stochastic Calculus for Finance Vol II), I didn't think twice. However, I wanted to see if the definition ...
2
votes
1answer
75 views

Impact on bid/offer due to volume/size of trades placed

When observing bid/offer in the market I came across a question. How much trading a bond would impact its spread for subsequent trades ie. what is the impact on bid/offer due to volume/size of ...
1
vote
2answers
30 views

VIX Futures data: why happen to have settle price > 0 and Volume = O.I. = 0

This question is about something observed hands on data that makes me a little confused. Consider the term structure of futures on VIX of Monday, December 27, 2010. You can find it at the CFE market ...
1
vote
1answer
34 views

Q regarding amortization of 500,000 loans

I am brand new to this forum. I asked this question on the main StackOverflow site and it was suggested that I ask here. My task is to find a method to quickly calculate the monthly cash flow on ...
1
vote
1answer
44 views

How to calculate implied volatility smile of basket using correlations?

For a basket, the realized volatility can be calculated using: $$\sqrt{\sigma_1^2 + \sigma_2^2 + 2 \sigma_1 \sigma_2 \rho}$$ If I have the volatility surface of two underlyings S1,S2 (strike space). ...
2
votes
1answer
42 views

How to get around flat likelihood function when calibrating GBM parameters

(Hope this is the correct place for this question - I posted it first on stackoverflow:) I want to calibrate jointly the drift mu and volatility sigma of a geometric brownian motion, ...
2
votes
1answer
463 views

Johansen Cointegration Test

I just performed a Johansen Co-integration test on two stocks. The results I get are: ans = r0 r1 t1 true false I am using Matlab. Can ...
5
votes
2answers
718 views

Derivation of Ito's Lemma

My question is rather intuitive than formal and circles around the derivation of Ito's Lemma. I have seen in a variety of textbooks that by applying Ito's Lemma, one can derive the exact solution of a ...
0
votes
1answer
62 views

Bivariate Black-Sholes Model

Let us propose bivariate Black-Sholes Model. Assume, we have an arbitrage-free complete market. $r_{f}$ is risk-free rate. Under real-world measure $P$: $dS_{1} (t)=S_{1} (t) ...
3
votes
3answers
79 views

What to use as portfolio diversification measure?

Suppose that we have a portfolio of $n$ assets. A perfectly diversified portfolio is one in which each asset has equal weights, i.e. each asset has weight $\frac{1}{n}$. Of course this is usually not ...
0
votes
0answers
22 views

How to implement an Interest rate neutral strategy using options?

Intuitively one would think that investing equal amounts in an ETF such as TLT and an short ETF such as TBF (with some factor for the interest rate payout of the long fund) should result in a interest ...
4
votes
8answers
847 views

Why should we expect geometric Brownian motion to model asset prices?

Disclaimer: I am a complete ignoramus about finance, so this may be an inappropriate forum for me to ask a question in. I am a mathematician who knows nothing about finance. I heard from a popular ...
0
votes
1answer
104 views

Factoring risk premium in to Forward Rate calculation

This is a self study question. I'm calculating a forward rate. Specifically, I have that in a country X, the Spot Rate is 5X/1US. I also have that the 1 year interest rate is 13% in country X and ...
0
votes
0answers
14 views

How to filter and normalize market data obtained from distinct sources (FIX 4.4, bloomberg, etc) in an algorithmic trading system?

I'm wondering if some of you known how to resolve this requirement: I have to define the architecture of an algorithmic trading system (but I'm not an architect, so I'm trying to do my best). I have ...
0
votes
1answer
243 views

News on ETF sector performance

I am interested to find historical news (if any) associated with intraday volatility burst in a particular ETFs like ishares IYF (Financials). So say that between 12:00 - 12:10pm, the ETF IYF's stock ...
3
votes
1answer
72 views

Best simplified way to model volatility in returns of an investment in a risky fixed income asset

I am currently working on a project where I have analyzed a certain category of fixd income instruments, and I now have the gross aggregate yield as well as the theoretical gross-aggregate ...
3
votes
4answers
209 views

Does an implied volatility always exist for a binary option?

I'm trying to compute the implied volatility of a binary option but I cannot get some of the strikes to reach a convergent solution using either a Monte Carlo pricing model or an analytical Black ...
1
vote
1answer
124 views

novice question on fixed coupon schedule in QuantLib

For some bonds I work with the last coupon date is not equal to bond's maturity date. E.g. the last coupon date is April 25th, 2020 and maturity date is April 25th, 2021. I looked at Schedule class ...
4
votes
2answers
2k views

Typical risk aversion parameter value for mean-variance optimization?

What are typical values for risk aversion parameters $\lambda$ used in mean-variance optimization? Please provide references. Just to be clear, I'm talking about the $\lambda$ in $U(w) = w'\mu - ...
2
votes
1answer
543 views

Bond Portfolio Immunization - Duration Matching

**Question is at the bottom** Suppose you have a portfolio of bonds A, B, and C with the following characteristics: (the "Frequency" column is the # of coupon pmts per year and also the # of ...
0
votes
1answer
78 views

Where can I find a guide to implement the FAST protocol from scratch having already a FIX implementation ready?

I need to implement a FAST engine from scratch without using any open source or commercial FAST implementations. The FAST spec does not help much so I am not sure from where to start. Have anyone done ...
0
votes
1answer
29 views

portfolio optimization with uncertain returns

What is the usual method of dealing with many uncertain mean returns in portfolio optimization? For example say you have a 3 asset portfolio with assets A, B and C. All the correlations and variances ...
1
vote
1answer
31 views

Does a call calendar lose its entire value if underlying increases well past the strike?

If I buy a call calendar spread, and the underlying increases, both options are in the money by the expiry of the short call. So both options increase in value, but the short one increases less ...
1
vote
1answer
41 views

PEGY Ratio: Does it make sense?

PEGY ratio is calculated as PE ratio/(Earnings Growth Rate + Dividend Yield). Putting aside the discussion of whether forward or trailing P/E ratio should be used, isn't adding dividend yield over ...
1
vote
1answer
86 views

Combine together different strategies in one portfolio [on hold]

Hi I have generate equity of my strategies which invest in commodities and currencies at daily interval. What the best method to combine together all strategies in one portfolio? I want to make the ...
0
votes
1answer
56 views

Convert a call spread to a butterfly to mitigate risk

I do not have a source for this (apologies), but sometimes, I hear about option traders initiating a vertical spread(short) and then converting that call spread to a butterfly spread to mitigate risk. ...
3
votes
1answer
483 views

Documentation of the ISDA CDS standard model

I have to validate the use of the ISDA CDS standard model. Don't understand me wrong - I am sure that the ISDA model is "good" I just need to know what it is in detail. I can download an ...
1
vote
1answer
285 views

Empirical copula

I am trying to find the empirical copula linking two random variables $X$ and $Y$. I have some data available but it's limited with respect to the variable $Y$ and I am not convinced it's enough data ...
1
vote
1answer
55 views

Are there industry standards form market data server and real time linux kernel?

I'm wondering if there is some standard in the industry about the version of the linux kernel of a computer to run a market data engine on it. (market data engine = connect to brokers, subscribe to ...
1
vote
1answer
62 views

Order book Limit Order book

I am trying to make a Limit Order book from an ITCH file using r. what is the basic difference between orderbook and limit orderbook? R has a package for orderbook I think
1
vote
1answer
76 views

negative discount and zero rate on swap bootstraping

Hi I am writing a program to Bootstrap a EURO zero swap-curve for tenor 3M and 6M with given bid and ask. When I run the program , I get a negative zero rate and discount factor from 5Y till 30Y for ...
-1
votes
0answers
7 views

Is there a difference between annuity and actual interest rate payments? [on hold]

I read in some books about annuity repayments and actual interest rate payments. However, I think both concepts are quite similiar or describe even the same? Is there a difference between the ...
1
vote
2answers
175 views

Which interest rates to use for options pricing?

I am looking at the historical treasury interest rates and am uncertain which rates would be best to use for options pricing. Should I use 1 month, 6 month, 2 year? See: ...
-5
votes
2answers
156 views

How to apply Elliott wave priciple to any Time Series?

I'm strongly interested to computing Elliott Wave to any given Timeseries. Does anybody tried? Is there any phython library to do that? I'm looking for an algorithm taht if I give to it a time ...
2
votes
2answers
110 views

How to compute the VaR for European Call, using the delta-normal method?

I have a European call option with current stock price $S_0$, strike $K$, risk-free rate $r$, volatility $\sigma$, and time to maturity $T$ years. I assume that the stock price at time $t$, which is ...
2
votes
0answers
25 views

Stochastic control (HJB) for wealth process involving stopping times

Given a wealth process that evolves as $$d w_t = r w_t dt + \theta_t ( \sigma dW_t + (\mu-r) dt) - c_t dt.$$ where $\theta_t$ is the worth of holding at time $t$ and $c_t$ is the consumption stream. ...
1
vote
1answer
493 views

How to estimate market integration parameter in Singer-Terhaar model for E(r)?

Singer-Terhaar is part of CFA II and III curriculum. It estimates risk premium for some asset, traded at some local market, as weighted average of expected premiums for the case of (1) local market, ...
3
votes
2answers
547 views

Volatility of a rolling window strategy

What methods can be applied to determine the volatility of strategy using a rolling window? Using normal standard deviation would bias the results as the returns will be highly correlated. Although, ...
0
votes
0answers
37 views

Applying Girsanov Theorem

I have some parts of the proof, but I am not sure if they are arranged correctly or are sufficient. Is this right? Proposition: Given probability space equipped with natural filtration of standard ...
1
vote
2answers
307 views

Calculating Bollinger Band Correctly

My bollinger band comes out like the below, which doesn't seem right. Any idea what is wrong with my code for calculating upper and lower bollinber bands? I obtained my data from here ...
1
vote
1answer
38 views

What is the filtration described?

What is the filtration $(\mathfrak{F}_t)$ encircled below? Is it $(\mathfrak{F}_t) = (\sigma(W_t)) = (\sigma(\tilde{W_t})), t \in [0,T]$? Or is it $(\mathfrak{F}_t) = (\sigma(\hat{W_t})), t \in ...
0
votes
0answers
45 views

Has automated trading produced profits at IEX?

Is there evidence that automated trading is profitable on the latency-enforced portion of the exchange? On the one hand, if automated trading was profitable when these limits existed naturally, it ...
0
votes
0answers
28 views

Correction factors for volatilities of smoothed returns

In An Introduction to High Frequency Finance (http://www.amazon.ca/Introduction-High-Frequency-Finance-Ramazan-Gen%C3%A7ay/dp/0122796713), the authors (on page 253) build a tick-frequency volatility ...
6
votes
4answers
495 views

Replicating portfolio and risk-neutral pricing for interest rate options

For equity options, the pricing of options depends on the existence of a replicating portfolio, so you can price the option as the constituents of that replicating portfolio. However, I am not seeing ...

15 30 50 per page