Options field guide
All guides · Page 26
Plain-language guides to earnings, implied volatility, option strategies, target prices, and time decay
706 guides
Numeraire and Change of Measure Explained
Understand how choosing a numeraire changes the probability measure, which relative prices become martingales, and why forward measures simplify pricing
Read guideNumerical Greeks for Option Pricing Explained
Learn how bump-and-revalue, pathwise, likelihood-ratio, and adjoint methods estimate option Greeks and how to diagnose numerical error
Read guideOLS Regression Coefficients and Assumptions
Understand the least-squares objective, conditional coefficient interpretation, residuals, exogeneity, multicollinearity, homoskedasticity, and responsible financial regression analysis.
Read guideOption Elasticity, Lambda, Omega, and Effective Leverage
Learn the delta×spot÷option-price formula, call and put signs, changing leverage across moneyness and time, contract multipliers, and spreads.
Read guideOption exercise cutoff time vs market close: which deadline matters
Separate option trading close, broker exercise cutoff, exercise-by-exception processing, assignment, and settlement so an expiring long or short contract is not managed by the wrong clock.
Read guideOption market value vs liquidation value: the difference
Compare an option position's displayed market value with its executable liquidation value using bid and ask prices, spread width, size, slippage, multi-leg orders, fees, and trading halts.
Read guideOption Model Risk and Calibration Explained
Learn where option model risk comes from, what calibration actually proves, why parameters can be unstable, and how to validate prices and Greeks
Read guideOption notional value vs premium: calculate both
Calculate option underlying notional exposure and premium market value, then distinguish delta exposure, maximum loss, assignment funding, and multiplier risk.
Read guideOption settlement value vs closing price: which one determines payoff
Understand why an option's last price, the underlying close, and an official exercise settlement value can differ, and calculate physical or cash-settled expiration results correctly.
Read guideOptional Stopping Theorem in Finance Explained
Learn when stopping a martingale preserves its expectation, why doubling strategies fail, and how stopping times enter barrier and American option valuation
Read guideOptions collar max profit, loss, and break-even
Calculate collar maximum profit, maximum loss, break-even, signed net debit or credit, stock floor and ceiling, multiplier, dividends, and assignment outcomes.
Read guideOptions realized vs unrealized P&L: what counts
Understand realized versus unrealized option profit and loss, including marks, actual fills, short premium, partial closes, rolling, exercise, assignment, expiration, and fees.
Read guideOptions return percentage calculation: choose the base
Calculate option return percentage using realized P&L and a stated denominator, including premium, maximum risk, collateral, stock value, fees, annualization, and open P&L.
Read guideP-Value and Statistical Significance in Finance
Understand p-values, null hypotheses, test statistics, significance levels, Type I and Type II errors, power, effect size, optional stopping, data snooping, and financial interpretation
Read guidePeaks Over Threshold vs Block Maxima
Compare GPD threshold exceedances with GEV block maxima, including data efficiency, bias–variance choices, dependence, return levels, and diagnostics for selecting an EVT method
Read guidePontryagin Maximum Principle vs HJB Explained
Compare costates and Hamiltonian maximization with value functions and dynamic programming in deterministic and stochastic financial control
Read guidePrincipal Component Analysis (PCA) Explained
Learn centering, scaling, covariance, component scores and loadings, explained variance, component selection, and the limits of PCA in finance.
Read guidePropensity Scores, Matching, and Overlap
Learn what propensity scores balance, why overlap and unconfoundedness matter, how matching and weighting change the estimand, and which diagnostics make a financial study credible.
Read guideProtective put max profit, loss, and break-even
Calculate protective put maximum loss, unlimited upside, married-put break-even, floor value, contract coverage, hedge cost, expiration, and basis choices.
Read guidePut Calendar Spread Options Strategy
Understand the long put calendar spread, strike and expiration choice, near-put assignment, maximum loss, uncertain break-even, theta, skew, rolling, and residual protection.
Read guidePut Diagonal Spread Options Strategy
Learn the long put diagonal, strike and expiration choices, short-put assignment, remaining far-put hedge, rolling, volatility exposure, margin, break-even limits, and exits.
Read guidePut Ratio Spread Options Strategy
Learn the 1-by-2 put ratio spread payoff, maximum profit, debit and credit break-evens, substantial crash loss, Greeks, margin, and assignment risk.
Read guideQuadratic Variation in Finance Explained
Learn why squared path increments survive at fine scales, produce the Itô correction, and connect diffusion volatility with realized variance
Read guideRadon–Nikodym Derivative in Finance Explained
Learn how the Radon–Nikodym derivative reweights probabilities, converts expectations, forms a density process, and supports risk-neutral valuation
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