Quant Sandbox
DerivativesPortfolio & RiskFixed IncomeCorporate FinanceStochastic ModelsGuide

© 2026 Quant Sandbox · A study aid for quantitative finance

Privacy & dataNo cookies

This site does not use cookies and asks for no personal data. It keeps a few small settings in your browser's local storage — your chosen theme and language, the sidebar layout, and your progress and answers in the Guides — so it remembers them on your next visit. This data never leaves your device; clearing your browser storage removes it. Inputs you change can also be captured in the page URL, so you can share or bookmark a specific setup. The site uses Vercel Web Analytics, a privacy-friendly, cookieless service that records only anonymous, aggregated usage (such as page views) without identifying you or tracking you across other sites.

Learn quant finance by seeing it move

Every topic is a hands-on visual tool. From derivatives to portfolios, fixed income, corporate finance and stochastic models — we teach the ideas through visualization, intuition and interaction, not walls of text.

  • VisualizeCharts and diagrams make abstract formulas concrete and easy to read at a glance.
  • Build intuitionSee how each parameter moves the result, so the why sticks — not just the formula.
  • InteractDrag sliders, change inputs and watch everything update live. Learning by playing.

Explore the modules

Interactive tools — pick any of them and start playing with the parameters.

DerivativesOptions, payoffs and pricing models.5 modules
Payoff LabBinomialBlack–ScholesHestonDelta HedgingBeta
Portfolio & RiskRisk, return, CAPM and portfolio optimization.4 modules
Risk & ReturnBetaCAPMBetaPortfolio LabBetaPortfolio OptimizationBeta
Fixed IncomeBonds, yield curves, duration and convexity.4 modules
Bond LabBetaYield CurveBetaDuration & ConvexityBetaTreasury Futures LabBeta
Corporate FinanceNPV, DCF valuation, WACC and capital structure.5 modules
NPV / IRRBetaValuation (DCF)BetaTime Value of MoneyBetaCost of Capital (WACC)BetaCapital StructureBeta
Stochastic ModelsBrownian motion, Itô and Monte Carlo.5 modules
Stochastic Learning StudioBetaBrownian MotionBetaGeometric Brownian MotionBetaItô ProcessBetaMonte CarloBeta
GuideNarrative write-ups behind the tools.6 modules
Derivatives pricingPortfolio & riskFixed incomeCorporate financeStochastic modelsKnowledge graph

Development

Recent updates and upcoming features

Recently added
  • URL parameterization — share links with your current inputs
  • Language selection — English and Hungarian versions are now available
  • Heston model
Coming next
  • Guides — narrative write-ups on important topics
  • Monte Carlo simulations and visualizations
  • Numerical methods for solving PDEs
Planned modules
  • Macroeconomics
  • Microeconomics
  • Analysis
  • Linear algebra
  • Probability theory
What is this site? This site is a study aid for students of the ELTE & Corvinus Actuarial and Financial Mathematics program. This is a personal project, so development happens when I have time and motivation.