Market availability6 minute read
What happens to options during a trading halt?
Understand why closing markets can disappear while exercise and assignment rights or obligations may continue during a stock halt
Read guideOptions field guide
All guides · Page 12
Plain-language guides to earnings, implied volatility, option strategies, target prices, and time decay
331 guides
Greek interpretation6 minute read
Why option delta is not a guaranteed probability
Understand when delta can serve as a rough probability proxy and why it differs from profit probability, touch probability, and a forecast
Read guideExpiration risk5 minute read
0DTE gamma and expiration risk
Understand why same-day options can change sensitivity quickly and why closing time is not the end of the risk
Read guideOptions decision guide5 minute read
Buy to open vs. buy to close
Understand buy to open and buy to close, the decision it supports, and the pricing and execution risks to check before acting
Read guideOptions decision guide5 minute read
Calendar spread vs. diagonal spread
Understand calendar and diagonal spreads, the decision it supports, and the pricing and execution risks to check before acting
Read guideOptions lifecycle4 minute read
Closing vs exercising an option
Learn how selling to close differs from exercising and why remaining time value matters to the decision
Read guideOptions decision guide5 minute read
Covered call vs. cash-secured put
Understand covered calls and cash-secured puts, the decision it supports, and the pricing and execution risks to check before acting
Read guideOptions decision guide5 minute read
Debit spread vs. credit spread
Understand debit and credit spreads, the decision it supports, and the pricing and execution risks to check before acting
Read guideDividend events4 minute read
Ex-dividend dates and option assignment risk
Learn why short calls can face higher early-assignment risk before an ex-dividend date
Read guideIncome strategies5 minute read
How to calculate covered call yield
Calculate premium yield and assigned return while keeping stock downside and assignment in view
Read guideOptions decision guide5 minute read
How to choose an option expiration
Understand option expiration selection, the decision it supports, and the pricing and execution risks to check before acting
Read guideOptions decision guide5 minute read
How to choose an option strike
Understand option strike selection, the decision it supports, and the pricing and execution risks to check before acting
Read guidePosition management5 minute read
How to evaluate rolling an options spread
Compare the closed spread with the replacement's strikes, expiration, debit or credit, and new maximum risk
Read guideOptions decision guide5 minute read
How to read an options chain
Understand an options chain, the decision it supports, and the pricing and execution risks to check before acting
Read guideEarnings events5 minute read
How to research options around a company's earnings
Use a repeatable ticker-level checklist for earnings date, option terms, volatility, and position risk
Read guideRisk management5 minute read
How to size an options position using maximum loss
Turn contract-level maximum loss into an account-level position limit without treating the estimate as a promise
Read guideOptions decision guide5 minute read
Implied volatility vs. historical volatility
Understand implied and historical volatility, the decision it supports, and the pricing and execution risks to check before acting
Read guideOptions decision guide5 minute read
Iron condor vs. iron butterfly
Understand iron condors and iron butterflies, the decision it supports, and the pricing and execution risks to check before acting
Read guideVolatility context4 minute read
IV Rank vs IV Percentile
Compare two historical implied-volatility measures and the different question each one answers
Read guideLong-term options5 minute read
LEAPS call strategy: what to evaluate
Understand long-dated call exposure, capital outlay, time value, volatility, and expiration risk before using LEAPS
Read guideOptions decision guide5 minute read
LEAPS calls vs. owning stock
Understand LEAPS calls and stock ownership, the decision it supports, and the pricing and execution risks to check before acting
Read guideBullish strategies5 minute read
Long call vs bull call spread
Compare uncapped upside, entry cost, break-even, and capped payoff in two bullish option positions
Read guideVolatility strategies5 minute read
Long straddle vs long strangle
Compare the cost, break-even distance, and movement required by two long-volatility option strategies
Read guideOptions execution4 minute read
Market order vs limit order for options
Compare execution certainty, price control, bid-ask spreads, and fill risk when ordering options
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