Options field guide
All guides · Page 27
Plain-language guides to earnings, implied volatility, option strategies, target prices, and time decay
706 guides
Ratio Spread vs Backspread in Options
Compare ratio spreads and backspreads by contract direction, payoff shape, volatility, time decay, tail risk, debit or credit, margin, and assignment.
Read guideRegression Discontinuity Design: Logic and Limits
Understand cutoff assignment, continuity, sharp and fuzzy RDD, local linear regression, bandwidth selection, manipulation diagnostics, and financial threshold applications.
Read guideReplicating Portfolios and Self-Financing Strategies Explained
Learn why identical payoffs imply identical prices, what self-financing means, and how discrete and continuous replication create option values
Read guideReverse Conversion Options Strategy Explained
Understand reversal arbitrage using short stock, a long call, and a short put, with payoff math, stock-borrow costs, dividends, assignment, margin, and execution risk.
Read guideRisk Reversal Options Strategy Explained
Learn bullish and bearish risk reversals, strike selection, expiration payoff, skew exposure, short-option assignment, margin, and why zero premium does not mean zero risk.
Read guideRisk Reversal vs Collar Options Strategy
Compare risk reversal and collar option strategies by stock ownership, call and put direction, payoff, premium, assignment, downside protection, and upside limits.
Read guideRolling cash-secured put vs assignment: true cost
Compare rolling a cash-secured put with assignment by effective share cost, cumulative premium, new strike, funding period, downside, and execution risk.
Read guideRolling covered call vs assignment: compare outcomes
Compare rolling a covered call with accepting assignment by cumulative P&L, stock basis, new strike, time, dividends, downside, and execution risk.
Read guideSaddlepoint Approximation in Option Pricing Explained
Understand the saddlepoint equation, density and tail approximations, exponential tilting, option-pricing uses, and the numerical checks that matter
Read guideShort Calendar Spread Options Strategy
Learn how a short or reverse calendar spread works with calls or puts, including credit, large-move thesis, unknown loss region, negative theta, assignment, margin, and exits.
Read guideShort call max profit, loss, and break-even
Calculate uncovered short call maximum profit, unlimited loss, expiration break-even, contract exposure, margin, fees, IV, early assignment, and stock delivery risk.
Read guideShort put max profit, loss, and break-even
Calculate uncovered short put maximum profit, stock-to-zero loss, expiration break-even, effective purchase price, margin, fees, IV, assignment, and funding risk.
Read guideShort straddle max profit, loss, and break-even
Calculate short straddle maximum profit, unlimited upside loss, stock-zero downside loss, two break-evens, multiplier, margin, fees, assignment, and early P&L.
Read guideShort Straddle Options Strategy Explained
Learn the short straddle payoff, break-even formulas, theta and volatility exposure, unlimited upside loss, assignment, margin, and expiration risks.
Read guideShort Straddle vs Short Strangle
Compare short straddle and short strangle strikes, premium, break-even width, Greeks, probability claims, margin, assignment, and unlimited tail risk.
Read guideShort strangle max profit, loss, and break-even
Calculate short strangle maximum profit, unlimited upside loss, stock-zero downside loss, both break-evens, multiplier, margin, fees, assignment, and early valuation.
Read guideShort Strangle Options Strategy Explained
Learn the short strangle payoff, strike selection, break-even range, limited premium, unlimited tail risk, theta, volatility, margin, and assignment.
Read guideSnell Envelope and Optimal Stopping Explained
Understand the smallest supermartingale behind optimal stopping, American option exercise, backward induction, and reliable numerical bounds
Read guideStable Distributions and Infinite Variance in Finance
Understand alpha-stable laws, the generalized Central Limit Theorem, infinite variance, tail parameters, aggregation, early financial evidence, and the diagnostics needed before using stable models
Read guideStationarity, Unit Roots, and Mean Reversion in Finance
Understand strict and weak stationarity, random walks, unit roots, persistence, mean reversion, half-life, spurious regression, ADF and KPSS tests, structural breaks, and financial diagnostics
Read guideStochastic Discount Factor Explained
Learn how a stochastic discount factor prices payoffs across time and states, connects risk premia to covariance, and relates to risk-neutral valuation
Read guideStochastic Exponential and Doléans–Dade Exponential Explained
Understand the stochastic exponential, its jump correction, positivity, martingale tests, measure changes, and role in asset-value dynamics
Read guideStock options vs index options: key differences
Compare stock and index options by underlying, deliverable, multiplier, cash settlement, exercise style, dividends, basis risk, notional size, and expiration.
Read guideStock Repair Options Strategy Explained
Learn the stock repair strategy, its 1-by-2 call structure, lowered break-even goal, capped recovery, continued stock downside, assignment, and expiration risk.
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