ragtop: Pricing Equity Derivatives with Extensions of Black-Scholes

Algorithms to price American and European equity options, convertible bonds and a variety of other financial derivatives. It uses an extension of the usual Black-Scholes model in which jump to default may occur at a probability specified by a power-law link between stock price and hazard rate as found in the paper by Takahashi, Kobayashi, and Nakagawa (2001) <doi:10.3905/jfi.2001.319302>. We use ideas and techniques from Andersen and Buffum (2002) <doi:10.2139/ssrn.355308> and Linetsky (2006) <doi:10.1111/j.1467-9965.2006.00271.x>.

Version: 1.2.0
Depends: limSolve (≥ 2.0.1), futile.logger (≥ 1.4.1), R (≥ 3.5), methods (≥ 3.2.2)
Suggests: testthat, roxygen2, knitr, rmarkdown, reshape2, stringr, ggplot2, MASS, RColorBrewer, BondValuation, R.cache, lubridate, treasury
Published: 2025-07-10
DOI: 10.32614/CRAN.package.ragtop
Author: Brian K. Boonstra [aut, cre]
Maintainer: Brian K. Boonstra <ragtop at boonstra.org>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
Materials: README NEWS
CRAN checks: ragtop results

Documentation:

Reference manual: ragtop.pdf
Vignettes: ragtop: Pricing Equity Derivatives with Extensions of Black-Scholes (source, R code)

Downloads:

Package source: ragtop_1.2.0.tar.gz
Windows binaries: r-devel: not available, r-release: ragtop_1.2.0.zip, r-oldrel: not available
macOS binaries: r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available
Old sources: ragtop archive

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