The Options Calculators blog
Options trading, explained clearly
Strategy breakdowns, payoff math, and practical guides — paired with the calculators that put each idea to work.
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Credit Spread vs Debit Spread: Differences, Examples, and When to Use Each
Credit spread vs debit spread: one collects premium, the other pays for a directional move. Compare payoff, breakeven, probability, and when to…
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Calendar Spread Calculator: Net Debit, Max Loss, and Time-Decay Profit
Calendar Spread Calculator: Net Debit, Max Loss, and Time-Decay Profit A calendar spread calculator estimates the cost, defined max loss, and profit…
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Bull Call Spread Calculator: Net Debit, Breakeven, Max Profit and Max Loss
Bull Call Spread Calculator: Net Debit, Breakeven, Max Profit and Max Loss A bull call spread calculator turns two legs into one…
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Black Scholes Option Calculator: Price, Greeks, and Probability
The black scholes option calculator computes a theoretical price for a European call or put from five inputs: the stock price, the…
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How to Read an Options Chain: A Complete Beginner’s Guide
Learn how to read an options chain: strike, bid, ask, volume, open interest, IV, and delta, plus a step-by-step process to pick…
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Straddle vs Strangle: Which Volatility Strategy to Use
Straddle vs strangle: both profit from a big move, but strikes and cost differ. Compare breakevens, examples, and when to use each…
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Poor Man’s Covered Call Explained: Setup, Example, and Risks
The poor man’s covered call replaces 100 shares with a deep ITM LEAPS call to cut capital. See the setup, a worked…
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What Is a Covered Call? A Beginner’s Guide to the Strategy
A covered call sells a call against 100 shares you own to earn premium income. Learn the setup, payoff math, breakeven, risks,…
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Long Put Calculator: Breakeven, Max Profit, and Max Loss
A long put calculator shows the profit and loss of a bought put at expiration: the position gains when the stock falls,…
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Margin Option Calculator: Capital and Buying Power for Long Options, Cash-Secured Puts, Naked Shorts, and Spreads
Margin Option Calculator: Capital and Buying Power for Long Options, Cash-Secured Puts, Naked Shorts, and Spreads A margin option calculator estimates the…