Learn finance the way
you'd learn to
ride a bike
.
Not by memorising definitions — by grabbing the thing and feeling how it moves. Start not knowing what compound interest is; finish reading a fund factsheet like a pro.
- Free forever
- No account
- No ads
- Open source
- English + Español
Start from absolute zero
No ticker, no balance sheet, no jargon assumed. Course one assumes you have never thought about money on purpose — and every later course only leans on the ones before it.
You poke it, not read it
Sliders, races, step-throughs, quizzes in every lesson. The idea moves when you move it, which is the difference between "I read that" and "I get that".
It doesn’t stop at “intro”
Most finance explainers tap out right after compound interest. These keep climbing — alpha, beta, Sharpe, Sortino, drawdown, reading a real fund factsheet — until the advanced stuff is just stuff you know.
Every course stands on the one below it.
Most sites give you scattered explainers. This is a single dependency graph: each course only assumes the ones before it, from "what is money?" all the way to pricing options. You are never expected to know something you weren't taught.
- Beginner 1/49 courses
What money even is. Interest, inflation, budgets, your first investment.
- Intermediate 2/410 courses
Markets, funds and ETFs, bonds, loans, stablecoins, AMMs.
- Advanced 3/49 courses
Portfolio theory, Sharpe and Sortino, factor models, behavioural traps.
- Expert 4/440 courses
Options pricing, Greeks, Value-at-Risk, Kelly, Monte Carlo, MEV.
The full map lives in the catalog — a real dependency graph you can follow course by course.
68 courses. This is all of them.
From your first euro to exotic derivatives — every chip below is a full course you can open right now.
Stuff you can actually grab and pull.
These are the real widgets from inside the courses — drag a slider, hit play, watch the numbers move. Go on, mess with them.
Why your money snowballs.
Nudge the rate up one point and watch the curve peel away from the straight line. That gap is compounding — the whole reason starting early beats starting big.
Open the course →- Final value
- $4,661
- CAGR
- 8%
Simple growth adds the same amount each year. Compound growth earns interest on past interest — so it curves upward and leaves the straight line behind.
A dollar later is worth less. Exactly how much less?
Push the payment further into the future and the bar shrinks before your eyes. This one chart is the engine behind every valuation you'll ever do.
Open the course →- Worth today
- $215
- Cents on the dollar
- 21¢
A promised payment loses value the longer you wait and the higher the discount rate. The curve is compounding played backwards — each year divides by another (1 + r).
"Risky" has a shape. Here it is.
Two bets with the same average return — drag the volatility up and watch one bell curve spill into the tails. That spread is the risk, and it's what every metric in the course is trying to pin down.
Open the course →Both curves peak at the same average return. The wider one just spreads its outcomes further from that average — that spread is volatility.
Built on how memory actually works.
Reading feels like learning; it mostly isn't. Every lesson here forces the three things that do work: predict, interact, retrieve.
- 1
Guess before you’re told
Lessons open with a question you can’t answer yet. Committing to a guess first is what makes the real answer stick — it’s the testing effect, and it’s built into every lesson.
- 2
Grab the idea
Every core concept ships with a slider, race or animation. Compounding isn’t a formula here — it’s a curve you bend with your own hands.
- 3
Prove you got it
Quizzes, concept matchers, fill-in-the-blanks and spot-the-trap questions — varied on purpose, spaced through the lesson, never a wall of MCQs at the end.
- 4
Pass the final
Each course ends in a graded final exam: one shot per question, no retries, score at the end. Progress saves on your device — no account, ever.
Curated tracks, not one giant list.
Pick the area you care about and follow the graph from beginner to expert — or jump straight to the course you need.
Investing Basics
From what money is to how bonds work — the absolute zero-to-investor path. No jargon assumed.
Stocks & Company Analysis
How exchanges, funds, order books, and balance sheets really work — pick stocks with your eyes open.
Crypto
Bitcoin, Ethereum, DeFi, and the mechanics of on-chain finance — from "magic internet money" to real understanding.
Quantitative Finance
Statistics, portfolio theory, risk models, Monte Carlo, stochastic processes, and Bayesian methods — the math that drives modern markets.
Derivatives
Futures, forwards, and options from first principles through pricing, Greeks, hedging, and on-chain perps — the full toolkit for risk management.
Prediction Markets
How Polymarket turns opinions into probabilities — order books, oracles, calibration, and sizing bets with Kelly.
DeFi
Finance rebuilt on-chain — Ethereum, stablecoins, AMMs, lending, perps, and the MEV games underneath it all.
Trading & Market Mechanics
How orders actually become trades — exchanges, order books, futures, FX, and the psychology that wrecks traders.
Fixed Income & Rates
Everything interest rates — from compound interest and mortgages to bonds, duration, convexity, and the yield curve.
Risk Management
Measure what can go wrong before it does — VaR, expected shortfall, tail risk, Monte Carlo, hedging, and ruin.
Behavioral Finance
Why real investors are not rational — biases, heuristics, overconfidence, calibration, and being fooled by randomness.
Macro & Currencies
The big picture — money, inflation, GDP, central banks, bond markets, and how currencies trade against each other.
Portfolio Construction
Turn a pile of assets into a portfolio — risk-and-return metrics, mean-variance optimization, factor models, and sizing bets with Kelly.
Options & Volatility
Options from first contract to the vol surface — payoffs, Black-Scholes pricing, the Greeks, volatility trading, exotics, and on-chain options.
Credit & Securitization
Default risk priced and traded — swaps and rate derivatives, fixed-income analytics, credit derivatives, securitization, and counterparty/XVA risk.
Algorithmic & Quant Trading
How quants actually trade — market microstructure, execution algorithms, statistical arbitrage, high-frequency market making, and RL for execution.
AI & Machine Learning for Finance
Modern AI on market data — ML for alpha without leakage, deep learning, reinforcement learning, generative and foundation models, GNNs, and robustness.
MEV & On-chain Trading
The hidden game beneath every block — ordering and MEV, cross-DEX and cross-chain arbitrage, bridge MEV, and order-flow auctions that redistribute it.
Start at zero. Finish an expert.
68 courses, 472 lessons, one ladder — free, no account, in English and Spanish. It takes about ten seconds to start.