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Questions tagged [interest-rates]

An interest rate is the rate at which interest is paid by a borrower (debtor) for the use of money that they borrow from a lender (creditor).

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Portfolio Analysis for Non-Linear Products

How does one apply modern portfolio theory to optimize the allocation of a portfolio of interest rate derivatives?
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1answer
131 views

Estimation of market price of risk of short interest rate under the Hull-White model

I think I am a bit confused. I intend to estimate the market price of risk the short interest rate, say, under the Hull-White model. I have the following two questions. Is it correct to state state ...
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39 views

Interest model calibration and binomial trees

Are there any good books for beginners on calibrating interest rate models and creating binomial trees based on these interest rate models and using them in pricing
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1answer
88 views

Credit Spreads and Relative Value : floating vs fixed bond

I would like to study if, in these weeks during the italian credit crisis, floating govy bonds were more resilient than fixed govy bonds. For each floating issue (CCTS) I chose the fixed issue with ...
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126 views

Zero Coupon Bond Price under Hull White Model (One Factor)

While pricing Zero coupon bond using One Factor Hull White model. how to determine this value using real world example. θ(t)=F_t (0,t)+(σ^2 (1-e^(-2at) ))/2a
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2answers
83 views

Data for daily real interest rates

In a high frequency model i would like to add daily real interest rates (preferably short-term) as a variable. However, I cannot seem to find either daily CPI data, or daily real interest rates (...
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130 views

Volatility from lognormal and shifted lognormal models

Is the volatility calibrated for lognormal and shifted lognormal models the same? How do I calibrate shifted lognormal volatility for negative interest rate currencies like JPY and CHF
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1answer
53 views

Where can I find data on US bank interest rates or 4-week T-bill rates dating back to 1970s or earlier?

Where can I find data showing 4-week T-bill rates or U.S. savings accounts' interest rates from 1960s to present, or 1970s to present?
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1answer
331 views

Why is Overnight LIBOR lower than BoE Base Rate?

According to this site, the current overnight GBP LIBOR is 0.45638%, and the Bank of England base rate is 0.5%. My understanding is that the overnight LIBOR should always be higher than the base rate,...
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119 views

Bloomberg OAS model

What interest rate stochastic model does bloomberg use to construct the interest rate trees for the calculation of bond OAS. If the model used is lognormal, then how is the volatility calibrated for ...
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3answers
144 views

What are the impacts of the discontinuation of benchmark Interest Rates?

I was wondering what the impacts of Interest Rates benchmarks (LIBOR/EURIBOR) discontinuation might be on the Quants side ? Do you know if there are articles/discussions providing an analysis grid of ...
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45 views

Extension of HJM to multiple factors

The HJM model calibrates the entire forward curve using the existing yield curve data and this results in the following expression for its instantaneous forward rate- $$df(t,T)=\sigma(t,T)\int_0^T\...
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1answer
149 views

How to compute bond drawdowns?

I came across a very interesting article which shows a picture with the drawdowns bondholders would have faced by investing in Fixed Income since 1919. The data is based on the Moody's seasoned AAA ...
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24 views

Relation between BDT volatility and Hull-White one factor Volatility

Is there any mathematical relationship between the volatility of spot rates calibrated from Lognormal model and the volatility of spot rates calibrated from HW one factor model?
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2answers
783 views

Mid-curve swaption

I would like to know how the mid-curve swaption could inform us about forward volatility. In my understanding it is a swaption on a forward starting swap. Let us say the midcurve swaption expires ...
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0answers
24 views

How does interest parity work with settlement dates?

Interest rate parity is typically proven as follows. Given one unit of a domestic currency, one can either convert it into $S$ units of the foreign currency and invest at the foreign risk free rate $...
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31 views

How to examine the impact of the parameters in the Hull White Model on the yield curve

I want to examine the yield curve resulting from the 2 Factor Hull-White model. Is there any way to examine the influence of the parameters on the yields curve without calibrating the model?
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61 views

how to calibrate hull white model

Under the hull white model, I know that $\theta(t)$ is earned from the cubic spline curve of the treasury yield curve. But I don't know how to calibrate volatility and mean reverting speed parameter. ...
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1answer
305 views

1y10y vs. 10y1y Swaption

Say you have two identical payer swaptions, exception for their terms and tenors. In other words, suppose you have two payer swaptions: $1y10y$ and $10y1y$. All other things being equal, according ...
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1answer
118 views

How do markets price an interest rate rise?

It is common to see phrases like Markets priced in a 68 per cent chance of a rise in UK interest rates at the next meeting, up from 48 per cent before the June decision was announced This example ...
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1answer
50 views

Futures and Forward Prices vs interest rates

Textbooks usually state that if an asset's prices are positively correlated with interest rate movements, then its Futures price is going to be greater than its Forward Price assuming the same ...
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168 views

Why is the annuity factor proportional to the CV01?

For an asset with par amount of one unit (with a semiannual payment regime) we have $$\frac{C(T)}{2}\sum_{t=1}^{2T}d\Big(\frac{t}{2}\Big) + d(T) = 1$$ $$\implies\frac{C(T)}{2}A(T) + d(T) = 1,$$ ...
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1answer
212 views

Do CDS have interest rate exposure?

For hedging purposes, do CDS have interest rate exposure? I've thought of CDS as a pretty direct proxy for credit risk, but on the other hand say if interest rates rise it would be harder for ...
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2answers
162 views

Heging against stochastic interest rate

I am working on an Index and I am trying to price Call options on it. I work with the 3 Months LIBOR as Cash. I use the following Black-Scholes formula $$C_{t} = S_{t}e^{-q_{t}(T-t)}\mbox{N}[d_{1}(t)]...
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97 views

Why does a low deposit beta impact asset sensitivity for banks?

(I apologize if this question doesn't fit this site since it's not exactly quantitative, but I don't know a better forum) Why does a low deposit beta impact asset sensitivity? Another question I was ...
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2answers
96 views

When to use continuous time math vs discrete time?

Seems that the theory books are all integrals in continuous time, yet in practice, discrete estimations works fine. As a newbie to this, when do you choose to use the continuous time finance vs ...
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1answer
133 views

Two papers - two different solutions of the Ornstein-Uhlenbeck process

Bernal 2016 says that the solution of $$ dr_{t}=\lambda*(\mu-r_{t})*dt+\sigma dW_{t} \qquad (eq.1) $$ equals $$ r_{t}=r_0*exp(-\lambda t)+\mu(1-exp(-\lambda t))+\sigma \int_{0}^{t} exp(-\lambda t)...
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159 views

Calibration of Cox-Ingersoll-Ross process that hits zero (Feller condition violation)

I'm considering a Cox-Ingersoll-Ross (CIR) process $$ dx_{t} = \alpha\left(\theta - x_{t}\right)dt + \sigma \sqrt{x_{t}}\,dW_{t}\,,\qquad \alpha,\beta,\sigma > 0 $$ which by assumption has $2\...
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0answers
52 views

Bond prices at future times under Vasick one-factor model

In Vasicek one-factor model (and in other affine models), the price of a zero-coupon bond at time $t$ conditional on the information at this time is $$P(t,T) = E[e^{-\int^T_tr(u)du}|F_t] = A(t,T)e^{-...
2
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2answers
111 views

Why do par-yield shifts grow faster across the curve than spot-rate shifts when looking at key-rates?

Consider the following 10y key-rate shifts of bond par yields and its implied shift of bond spot rates: Assume we have the key-rates for 2y, 5y, 10y and 30y. The y-axis is in basis points, and the x-...
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1answer
103 views

On the buyside, when people quote a 'price' for a plain vanilla interest rate swap, does it include accrued interest?

The valuation date falls in between coupon payment days on the swap, does the 'price' of a swap understood to include the accrued interest (interest from the previous payment date to the valuation ...
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0answers
38 views

Differential Equation of Type Ricatti as part of Short Rate Model

I currently despair of the following solution of a differiental equation (Ricatti Type) as part of a short rate model: $$ B_t=\frac{1}{2}aB^2+bB-1 $$ First I am "guessing" a particular solution $$ ...
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1answer
49 views

For a market with a bank and risky assets $S_1, S_2$ with different volatility, what should be the short interest rate in this market?

Let there be two assets $S_1$ and $S_2$ s.t.for $\sigma_1 \neq \sigma_2$ $$dS_{1t}=\mu_1 S_{1t}dt+ \sigma_1S_{1t}dB_t \\dS_{2t}=\mu_2 S_{2t}dt+ \sigma_2 S_{2t}dB_t$$ . If there exists a bank, what ...
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1answer
190 views

Bermudan Swaptions

Can someone explain, in layman's terms, the mechanics behind Bermudan Swapttions ( without having recourse to pricing models )? Why are they popular? when are they used ? How are they hedged i.e ...
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0answers
107 views

Reason for choosing the T-forward measure to calculate expected value of forward curves

Setup I read that when simulating forward curves $(r_t(s_i))_i$ at some future time $t>0$, one is supposed to center them not around $F(0;t,t+s_i)$, but around $$\mathbb E^{\mathbb Q_{t}}[r_t(s_i)]...
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1answer
33 views

When exactly does the FOMC release the new calendar dates?

Please let me know if this is the appropriate place to post this. I know every year the federal reserve releases the calendar dates for the next year's meetings around May or June. Is there a ...
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1answer
33 views

Recreating / Extending Bond Time Series

I am trying to analyse historical yield curve dynamics within an across countries and step one is extending / recreating historical yields and/or prices. The challenge is this: lets say a 10 year ...
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70 views

Black-Schole PDE for european put option under Cox-Ingersoll-Ross model

For a european put option, starting from the classical Black-Scholes PDE (assuming constant rate), how do we come up with the Black-Scholes PDE under the Cox-Ingersoll-Ross model (CIR) such as the ...
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0answers
29 views

Portfolio Immunization from Yield Perspective

Let's say we have the following situation: an asset (mortgage) with fixed payments, a prepayment & oas models to run through, and calculations for duration, convexity, and price, based on them. ...
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2answers
113 views

Bond Convexity and Maturity

What the reasoning for why bond convexity increases with maturity. Heuristic explanations are somewhat better as I would like a fundamental understanding. Also what causes a more convex bond to be ...
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0answers
256 views

Issue with DV01 for Vanilla IRS

I am trying to calculate DV01 of an Interest Rate Swap using methodology given in Use QuantLib Python to calculate Swap DV01 but getting some strange results. Issue 1: DV01 coming out using ...
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1answer
472 views

CMS options, cash-settled/physically-settled swaptions

CMS options are traditionaly replicated using a theoritical "continuous" strip of swaptions (see for instance Hagan's paper "Convexity Conundrums : Pricing CMS Swaps, Caps and Floors"): In the paper,...
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0answers
46 views

Difference between term spread and forward rate

Term spread is the difference of long term and short term yield. If the spread is positive, the difference indicates the extra yield received on long term bond. Forward rate is the future yield on a ...
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1answer
183 views

Fixing Rate in Quantlib

While pricing Interest Rate Swap, I am providing Fixing rate for historical date using "addFixing(date, value)" function. But when I am trying to change value it is not happening and picking up old ...
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1answer
56 views

How to simulate a path through its solution and conditional expectation / variance

Hi I want to simulate in Matlab the following stochastic integral: $ x(t) = x(s) e^{-a(t-s)} + \sigma \int_s^t e^{-a(t-u)} dW_1(u)$ with $E[x(t) \vert F_s] = x(s) e^{-a(t-s)}$ $Var[x(t) \vert ...
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1answer
224 views

Modelling interest rate

Hi I want to model two stochastic integrals in Matlab, which is given by $ x(t) = x(s) e^{-a(t-s)} + \sigma \int_s^t e^{-a(t-u)} dW_1(u)$ $y(t) = y(s) e^{-b(t-s)} + \eta \int_s^t e^{-b(t-u)} dW_2(...
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1answer
332 views

Obtaining swaption prices from lognormal volatility quotes

I am working with the following dataset from quandl: https://www.quandl.com/databases/CSWO (I'm using the sample dataset only). My question is how to obtain the swaption prices from the quotes given. ...
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0answers
425 views

What does it mean that a swaption is atm?

This is a relatively short question: If a swaption with option tenor $S$ and swap tenor $T$ is said to be atm, does that mean that the strike of the swaption is equal to the currently (we ar at time $...
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1answer
66 views

Libor Swap Rates

In a 5 year Libor Swap, say fixed vs. 3 months Libor, what is the credit risk reflected by the fixed leg ? (I'm ignoring counterparty credit risk). Would the fixed leg reflect 3 month Libor quoting ...
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0answers
133 views

CIR calibration error (Python)

No joy on Stack Overflow, perhaps more fitting here. I have a script which includes a calibration of the CIR model for short rates, the entire script and dependencies are at: https://github.com/...