# All Questions

1answer
191 views

### Pair trading based on cointegration - equity line

I'm preparing a project at my Uni where I have to make a simple pair trading strategy using cointegration between two stocks. I'm stuck on the equity line calculation. I have prepared opening and ...
1answer
170 views

### Self-Frontrunning Arbitrage

If I have a large order to fill, shouldn't I always buy a derivative in the same direction to profit from the market impact? E.g. I sell 1 million shares and so I buy a put, which will hence almost ...
1answer
67 views

### Interpreting and scaling of Realized Variance with sample data

I have some question about realized variance(RV) and I have some sample prices below to work with. You can run the R code below to build a vector of log returns. Three are 78 5-minute buckets in a ...
1answer
178 views

### Issue with OLS Regression for Nelson Siegel Svensson parameters

I have been working on getting input parameters to the Non-Linear Optimization which gives the Nelson Siegel Svensson model parameters and am carrying out the OLS regression as described in this ...
1answer
210 views

### What market making strategies are often used nowadays ？

I am doing a survey of market making strategies, what's the popular market making strategies?
1answer
70 views

### Forward parity in fixed income

In stock and index we have a beautiful forward-spot parity $$F(t,T) = S(t)\cdot B(t,T) \tag{1}$$ which tells us that to price a forward contract at time $t$ with expiry $T$ we can just borrow ...
0answers
33 views

### Is there a considered floor for variation the 1st principal component must explain?

I am wondering if there is a considered floor to the percentage variation the 1st principal component must explain in general for PCA - ie. any lower and it is not worth doing PCA at all? Is the floor ...
0answers
25 views

### Influencing factors on credit

There was the following question on an exam: Which factors are influencing the effective interest rate of a credit? loan amount fees interest rate running time I would have said ...
0answers
51 views

### Fed Funds Rate: longer maturities

FFR published by Fed Bank of NY is the average rate US banks charge each other for the overnight loans of their reserves required by the Fed regulations. Since Fed acts similar to a clearing house ...
1answer
50 views

### Likelihood of a caplet ending in the money

with what likelihood would one expect an ATM caplet to end up in the money? Just as a very rough guess, from real world experience. When I consider N(d2) from the Black formula, for spot = strike = 4%...
2answers
336 views

### Why is the value of debt modeled as a short put option in Merton's model?

Can someone give me an intuitive understanding of why the Merton model models the value of the debt from the lender's point of view as a short put with a risk free bond? I'm not well versed in this ...
1answer
76 views

### compute technical indicators from candle data

i have a rookie question but can't find the answer anywhere so..what is the right way to compute a simple moving average when you have an array of (open,close,low,high) tuples ? From what i saw so ...
1answer
50 views

### Given cash flows, what is the interest rate of the following contract? [closed]

I am presented with an investment opportunity where I am given #481,000 on day 1. Thereafter, every 10 days, I am required to give back #50,000 every for 100 days (10 * 50000 = 500000). How do I ...
0answers
82 views

### Ledoit-Wolf portfolio weights calculation

I am trying to implement the Ledoit-Wolf minimum variance portfolio strategy on a real-world stock dataset. ...
1answer
159 views

### Derivation using Ito's Lemma of price process

Define $q(t)$ as the log price minus a linear trend $$q(t) = \ln P(t) - \mu t$$ Assume the log price process = Equation 1: $$dq(t) = - \Theta q(t) dt + \sigma dW(t)$$ Can you show that the ...
1answer
46 views

3answers
91 views

### Impact of big order on price

What is known about the question: If someone buys or sells a huge amount of some asset how the price would change ? Of course, it depends on the kind of assets and other context. My main interest is ...
1answer
147 views

### How to perform risk budgeting for non-linear portfolios?

I am using this question to compute optimal weights following a risk budgeting approach. The problem is I am using non-linear portfolios (options,equity,fixed income,fx). What I am looking for is ...
1answer
399 views

### Greeks of a swaption using Brigo

I struggeling with calculating the delta of a swaption. In the interest rate case I usually mess around with the multiple cash flows over time so that the discounting is more complex than in the ...
1answer
73 views

### Connection between implied volatily and implied probability

I am reading some lecture notes about Black-Scholes (BS) option pricing. Since the BS-formula is not supported by observed data because of the dependence of the implied volatility on the strik and ...
3answers
621 views

### How to learn QuantLib-python at first?

In my project, I have to get the delta of up and out call option (with vol surface). I found out that QuantLib might help me on that. Since my main language is python and I don't know well about C++, ...
2answers
169 views

### Legitimate input parameters for Nelson Siegel Svensson model

I had previously asked this question and have come to better understand the answer with regards to setting the input parameters for the Non-Linear Optimization problem that provides the NSS parameters....
1answer
241 views

### Rebalancing portfolio weights

I have a matrix of returns and weights for every time period. ...
1answer
34 views

### Compound Discounting(?)

I am a programmer interning at a small contract furniture company. This company receives multiple discounts from the manufacturers, and I am trying to calculate the end discount. For example, the ...
1answer
53 views

### Understanding portfolio weights and purchasing stock in modern portfolio theory

Recently I've been learning about the markowitz algorithm. It's pretty interesting, but I'm curious how we apply this in practice. Lets say I have some optimal portfolio: $R_p = x_aR_a + x_bR_b$ ...
1answer
92 views

### About the boundary conditions of the Black-Scholes-Merton PDE

I have a question about the solution of the Black-Scholes PDE for the European call option when I read the book Stochastic Calculus for Finance II of Steven E.Shreve. Let $c(t,x)$ be the value of the ...
1answer
118 views

### Calculating discount factors using Nelson Siegel Svensson model

I am trying to understand how to calculate the discount factors $disc(TTM)$ mentioned on Page 9 of this pdf. When I'm calculating the discount factors, mentioned each bond has its own cash flow and ...
0answers
183 views

0answers
57 views

2answers
325 views

### What‘s the definition of static arbitrage?

Could someone give the strict definition of static arbitrage? I know what the arbitrage means but have no idea about the term "Static". Thanks in advance!

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