Black-Karasinski Tree Analysis
The Black-Karasinski (BK) model assumes that the short rate follows a log-normal process. This means that the logarithm of the short rate is normally distributed, which ensures that interest rates remain positive. Price and analyze interest-rate instruments using a BK tree model with the following functions:
Functions
| bkprice | Instrument prices from Black-Karasinski interest-rate tree | 
| bksens | Instrument prices and sensitivities from Black-Karasinski interest-rate tree | 
| bondbybk | Price bond from Black-Karasinski interest-rate tree | 
| capbybk | Price cap instrument from Black-Karasinski interest-rate tree | 
| cfbybk | Price cash flows from Black-Karasinski interest-rate tree | 
| fixedbybk | Price fixed-rate note from Black-Karasinski interest-rate tree | 
| floatbybk | Price floating-rate note from Black-Karasinski interest-rate tree | 
| floorbybk | Price floor instrument from Black-Karasinski interest-rate tree | 
| oasbybk | Determine option adjusted spread using Black-Karasinski model | 
| optbndbybk | Price bond option from Black-Karasinski interest-rate tree | 
| optfloatbybk | Price options on floating-rate notes for Black-Karasinski interest-rate tree | 
| optembndbybk | Price bonds with embedded options by Black-Karasinski interest-rate tree | 
| optemfloatbybk | Price embedded option on floating-rate note for Black-Karasinski interest-rate tree | 
| rangefloatbybk | Price range floating note using Black-Karasinski tree | 
| swapbybk | Price swap instrument from Black-Karasinski interest-rate tree | 
| swaptionbybk | Price swaption from Black-Karasinski interest-rate tree | 
Topics
- Pricing Using Interest-Rate Tree ModelsThe portfolio pricing functions hjmpriceandbdtpricecalculate the price of any set of supported instruments, based on an interest-rate tree.
- Computing Instrument SensitivitiesThe delta, gamma, and vega sensitivities that Financial Instruments Toolbox™ computes are dollar sensitivities. 
- Pricing and Hedging a Portfolio Using the Black-Karasinski ModelThis example illustrates how MATLAB® can be used to create a portfolio of interest-rate derivatives securities, and price it using the Black-Karasinski interest-rate model. 
- Use treeviewer to Examine HWTree and PriceTree When Pricing European Callable BondThis example demonstrates how to use treeviewerto examine tree information for a Hull-White tree when you price a European callable bond.
- Overview of Interest-Rate Tree ModelsFinancial Instruments Toolbox computes prices and sensitivities of interest-rate contingent claims based on several methods of modeling changes in interest rates over time. 
- Understanding Interest-Rate Tree ModelsFinancial Instruments Toolbox supports the Black-Derman-Toy (BDT), Black-Karasinski (BK), Heath-Jarrow-Morton (HJM), and Hull-White (HW) interest-rate models. 
- Supported Interest-Rate Instrument FunctionsInterest-rate instrument functions supported by Financial Instruments Toolbox.