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Concepts

Products are the atlas's nouns; these are its verbs — the cross-cutting ideas that show up in every asset class. Each concept page combines the full explanation, charts, and the interactive calculators that make the idea concrete. Education only, as everywhere here — see the disclaimer.

The badges say how much a page assumes: Start here nothing beyond plain English · Some background helps one concept from elsewhere on the site · Assumes the mechanics written for someone already inside the market.

The library

  • Option Strategy BuilderSome background helpscombine up to eight calls, puts and stock legs into one position and watch the combined payoff, breakevens, Greeks and scenario table update live. Plus a cheat sheet of the fourteen classic strategies.
  • The Yield CurveSome background helpsshapes and what they forecast, the forward curve hidden inside, inversion as a recession signal, and how carry & roll-down pay bondholders. With the forward-rate and carry-and-roll calculators.
  • NPV & IRRStart herediscounting from first principles, the NPV curve, hurdle rates, MOIC versus IRR, and the classic IRR traps (reinvestment assumption, multiple sign changes, subscription-line games). With a full cash-flow IRR solver.
  • VolatilitySome background helpsrealised vs. implied, the VIX, volatility clustering, the vol risk premium and vol targeting. With a volatility converter (√time rule, expected moves).
  • LeverageStart herethe four disguises borrowed money wears, the return an asset must clear before the borrowing earns anything, why the path matters more than the destination, and where leverage hides in ordinary holdings. With a leverage break-even calculator.
  • LiquidityStart heremarket versus funding liquidity, tightness, depth and resilience, what a real exit costs, liquidity mismatch in open-ended funds, and why it disappears exactly when it is needed. With an exit-cost calculator.
  • Margin & CollateralSome background helpsinitial vs. variation margin, haircuts, rehypothecation, the margin spiral, and the LDI and Archegos case studies. With a margin-call simulator.
  • Diversification & CorrelationStart herethe portfolio volatility formula, how many holdings you need, the efficient frontier, and why correlations betray you in crises. With a two-asset portfolio calculator.
  • HedgingSome background helpswhat a hedge does and does not remove, the minimum-variance hedge ratio, basis risk in its four forms, static versus dynamic hedges, and the ways hedges fail. With a hedge-ratio calculator.
  • Spread MeasuresSome background helpsG-spread, I-spread, Z-spread, asset-swap spread, OAS and discount margin: what each measures, when each misleads, and the desk rules for choosing. With a Z-spread calculator.
  • Risk MeasuresSome background helpsValue at Risk and expected shortfall, why the tail is always fatter than the model, beta hedging, and the uncomfortable arithmetic of how long it takes to prove skill. With three calculators.
  • Valuation & Cost of CapitalSome background helpsCAPM, the equity risk premium, WACC and the tax shield, enterprise value bridges and what multiples hide. With cost-of-equity, WACC and EV/EBITDA calculators.
  • Costs & FeesStart herethe six layers of cost, why the certain input beats the uncertain one, and what a percent a year compounds into. With total-cost-of-ownership and trading-cost calculators.
  • Portfolio PracticeStart hererebalancing bands, sequence-of-returns risk in the withdrawal phase, the behaviour gap between a fund's return and its investors', and property yields. With four calculators.
  • Curve Construction & Bond MathAssumes the mechanicsbootstrapping zero rates from par yields, discount factors and forwards, bullet versus barbell convexity, and the cheapest-to-deliver arithmetic behind bond futures. With three calculators.
  • Corporate ActionsSome background helpsdividends, splits, rights issues, buybacks, spin-offs and takeovers: which price moves are news and which are arithmetic. With TERP, buyback and EPS accretion calculators.
  • InflationStart herethe only loss that needs no market move, how the index differs from your basket, what indexation is worth, and how linkers actually behave. With three calculators.
  • Central Banks & Monetary PolicySome background helpsthe corridor system, the five transmission channels and their lags, QE and QT, forward guidance, and how markets price the path. With Taylor-rule and priced-moves calculators.
  • Regulation & Investor ProtectionStart heredeposit guarantees, client-asset segregation, issuer risk, the bail-in waterfall and how to read a key information document. With three calculators.
  • Behavioural FinanceStart herethe documented decision errors, each priced as arithmetic: loss aversion, missing the best days, waiting for a dip, overtrading. With two calculators.
  • Market MicrostructureSome background helpsorder books, spreads, makers and takers, HFT, auctions, dark pools and payment for order flow: what actually happens between clicking Buy and owning something.
  • Clearing & SettlementAssumes the mechanicsnovation and central counterparties, netting efficiency, the settlement window and why it keeps shortening, delivery versus payment, the custody chain and the default waterfall. With settlement-risk and netting calculators.
  • SecuritisationAssumes the mechanicsSPVs, tranching and the waterfall, credit enhancement, what failed in 2008 and the disciplined market that survived: MBS, ABS, CLOs and SRT in one storyline.
  • Glossary FlashcardsStart hereall 233 terms as a Leitner-style card deck, graded by you, progress stored only on your device.
  • The Market ExamSome background helpsfifteen random questions across all eleven asset classes, graded on your device with explanations, best score remembered locally.

More concepts join the library as the atlas grows. The case studies show these mechanisms failing in public; the glossary covers the short versions of 233 terms; the learning paths put products and concepts in a teachable order.