Six hands-on tools. Move the sliders and watch the math move with you. Each lab has a challenge: solve it and the cash goes straight to your bankroll.
The five keys of a financial calculator. Fill in any four, then hit Solve on the fifth. Money you pay out is negative; money you receive is positive.
Price a bond, then drag the yield. The curve is price vs. yield; the dashed line is the duration estimate. The gap between them is convexity.
Two risky funds and T-bills. Change the correlation and watch diversification bend the frontier. The gold line is the best capital allocation line; where it touches the curve is the tangency portfolio.
Stack calls, puts and stock into any strategy. Premiums come from Black–Scholes using the sliders. The bright line is profit at expiry; the faint line is the value today.
Value a company like an analyst: forecast free cash flow for five years, add a terminal value, discount at the WACC. The heat map shows how much the price hangs on WACC and long-run growth.
A 60-second trading round on a simulated stock (random but realistic: geometric Brownian motion with news shocks). Stake up to $500 of your bankroll, buy and sell as many times as you like, and keep what you make. Losses come out of the stake, never more.