Questions tagged [curve-fitting]

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Filtering options for IV surface and construction for cryptocurrencies

I'm new to quant finance and currently working on my first project.I'm trying to construct the Implied volatility surface for cryptocurrencies from deribit ( as options from deribit are the most ...
Anouer Bhy's user avatar
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Implementation of solvers for curve construction

I'd be really interested to hear people's experiences of implementing global solvers for curve construction, especially with regard to how robust the approach is in practice, numerical performance, ...
Marco's user avatar
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Implementation of Generalized Hull-White interest rate model

I am looking for implementation in R (or Matlab) of the Generalized Hull-White interest rate trinomial tree according to the following paper: Interest Rate Trees: Extensions and Applications (2017) . ...
Davide's user avatar
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Volatility surface fitting, interpolation and extension from sparse data

There are some nice papers about constrained spline fitting essentially giving you a smoothing and arb free surface. I am focusing on the oil market here: The market is essentially split in a very ...
user13655's user avatar
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Fitting Gatheral's SVI model

I was considering using Gatheral's formula for fitting option skew. In the specific (commodity) market that I am concerned with, the underlying is ca. at 50, and typically 5 integer strikes left and ...
ZRH's user avatar
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QuantLib - Synthetic deposit/FRA rates in yield curve

In my flat forwards dollar curve implemented in QuantLib I would like to add the following instrument: Today is 12/28/2018 Pillar quote is 1% p.a. (ACT/360) Pillar start is 1/30/2019 (specific ...
Michael Lowenstein's user avatar
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Johansen-Ledoit-Sornette Model

im trying to predict crash time by using lppl model(JLS). My codes can run, but the error is to high....I try with some other initial values, but still can't reduce the error.....How i can reduce ...
user3610659's user avatar
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How to choose a window for curve fitting and prediction?

I am using Pareto distribution to fit a serie of survival rates (with least square). My ultimate goal is to use this fitting curve for prediction. Thus I would mainly focus on the tail of the ...
NewLong's user avatar
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Onshore vs offshore curve construction

Can anyone guide me to links or literature regarding onshore vs offshore curve construction? What kind of instruments do you use? Take for CNH (offshore) (vs) CNY (onshore curves) for example: For CNY ...
Benedict's user avatar
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Which strategy did the fund most likely follow?

The following time series represents the return stream of a real hedge fund. Which strategy did the fund most likely follow? I did this data superimposition on Matlab. So, there should be some data ...
Dexter's user avatar
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CME Futures used in building LCH USD swap curve

To build a LCH swap curves, common benchmarks include cash rates, euro dollar futures and swaps. However, the euro dollar futures only exist in CME. So when you use euro dollar futures (only exist in ...
Peaceful's user avatar
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forecasting crash time of KLSE index (1991-1994)

Price deviation = financial bubbles. i try to fit the following stock price index to predict recession. I couldn't fit the model with the data(Data are not available in yahoo finance for the ...
user3610659's user avatar
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232 views

Fitting a sigmoid function to incomplete, structured, data

I have an incomplete data set that looks like this: and I believe that it will continue to form a sigmoid-like shape. How can fit a sigmoid curve to this data given my assumption about what the ...
user1650502's user avatar
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Bloomberg Interest Rates Swaps Curve Fitting in the presence of Serial FRA

The documentation points to a different approach than the standard linear in log discount factors. The EURIBOR 6M curve 45 is the prime example. Does anyone understand the implementation details of ...
roi0113's user avatar
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How to best calibrate a short rate curve using (compounded) SOFR futures & swaps

If one imposes a form $r(t) = \text{...}$ on the cc. short rate, and aims to fit the short end of a SOFR (or another modern RFR) using futures, how would one best go about this within a "curve-...
CentralCee's user avatar
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Apply monotone convex interpolation to swap rate input data

I'm trying to apply Hagan & West's monotone convex interpolation to a 6m EURIBOR (forward) curve using ESTR (already bootstrapped) for discounting. In their paper Hagan & West use discrete ...
BerndSchmitz's user avatar
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685 views

Bootstrapping SOFR curve and Swap Payment Lag

Can someone provide me an intuitive explanation of how discount factors are bootstrapped for SOFR when Swaps are trading with payment delay/ lag (e.g. of 2 business days). I can intuitively derive the ...
Rohit Gajare's user avatar
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180 views

Gatheral's SVI implementation in Java/Scala

I am trying to fit equity option implied vols using SVI model in Java, and I am using apache math commons library. Some of the option expiries fit very well, but others are completely off, and I am ...
armulator's user avatar
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