Embed high-performance options pricing directly into your existing workflow — Excel, Visual Basic, Visual C#, C++, or any COM environment. Full Greeks, probability analysis, and risk-reward calculations, ready to deploy in minutes, not weeks.
Options/X has been production-hardened on live trading floors for over two decades — no servers, no dependencies, no overhead.
Delta, Gamma, Theta, Vega, and Rho for European and American options. Monitor portfolio-level exposure in real time.
Reverse-engineer market volatility from option prices with high-precision numerical solvers. Build your own volatility surface.
Thousands of pricings per second on a standard desktop. Ready for real-time quoting, scanning, and portfolio-wide risk calculations.
Includes a full Excel Add-In. Access pricing functions directly from any cell — just like native Excel formulas.
Create custom options scanners, price calculators, and automated trading systems using Visual Basic, Visual C#/C++, or any COM language.
Compute the probability of a security touching a given price level within a set timeframe. Critical for trade selection and position sizing.
Evaluate potential outcomes before committing capital. Quantify maximum gain, maximum loss, and breakeven points across any options position.
Price options on equities, indices, commodities, and FX. One component for every asset class on your desk.
Options/X is an ActiveX/COM software library — it works with virtually any Windows development environment or end-user application.
Full Add-In with cell-level pricing functions. Turn any spreadsheet into an institutional options workbook.
Drag-and-drop the control into your VB project. Demo applications with full source code included.
Native COM interface for maximum performance in custom C++ trading applications and server-side systems.
Options/X ships with nine industry-standard pricing models, each optimised for speed and numerical precision.
Closed-form European option pricing with support for continuous dividend yields.
Futures and forward option pricing for interest rate and commodity derivatives.
Binomial lattice model for American and European options with early exercise modelling.
Fast analytical approximation for American options, widely adopted across institutional desks.
Analytical American option approximation delivering near-exact results at a fraction of lattice cost.
Purpose-built for European currency options with dual interest rate inputs for domestic and foreign rates.
Analytical pricing for American call options on dividend-paying stocks with discrete dividend adjustments.
Accounts for the effect of trading days versus calendar days on option valuations.
Models sudden price jumps in the underlying asset, capturing tail risk that standard diffusion models miss.
Clean APIs for every supported environment.
' Drop-in Excel functions =WT_BSCall(Spot, Strike, Rate, Vol, Time) =WT_BSPut(Spot, Strike, Rate, Vol, Time) =WT_Delta(Spot, Strike, Rate, Vol, Time, "call") =WT_Gamma(Spot, Strike, Rate, Vol, Time) =WT_ImpliedVol(MktPrice, Spot, Strike, Rate, Time, "call")
' Full object model access Dim engine As New WindaleOptions.Engine engine.Spot = 185.50 engine.Strike = 190.00 engine.Rate = 0.045 engine.Volatility = 0.2473 engine.Time = 0.25 Dim price As Double price = engine.BSCallPrice()
// Native COM interface #import "WindaleOptions.tlb" WindaleOptions::IEnginePtr engine("WindaleOptions.Engine"); engine->Spot = 185.50; engine->Strike = 190.00; engine->Rate = 0.045; engine->Volatility = 0.2473; engine->Time = 0.25; double price = engine->BSCallPrice();
Options/X transforms Excel into an institutional-grade pricing engine. Scan thousands of contracts, compute volatility surfaces, and build real-time P&L dashboards — all from the spreadsheet environment your desk already knows.
Combine Options/X with Volatility/X to build complete options scanning applications that identify mispricings across the entire options chain. Demo applications with full source code are included to accelerate your development.
Turn your spreadsheet into a trading system. Full-featured trial with Excel Add-In, demo applications, and direct access to Dr. Back for technical questions.