Every options spread is either a debit or a credit — you either pay to open it or get paid. That one distinction changes what you're betting on and how you win.
Vertical spreads come in two flavors. A debit spread costs money to open (net debit); a credit spread pays you to open it (net credit). Both cap risk and reward, but they profit from opposite forces (vertical spreads).
Debit spreads: pay for a move
You buy a debit spread expecting a directional move — a bull call spread for up, a bear put spread for down. You pay a premium, and you profit if the underlying moves your way by expiration. Time decay works against you, so you need the move to happen (theta decay). Max loss is what you paid; max gain is the spread width minus that.
Credit spreads: get paid to wait
You sell a credit spread collecting premium, betting the underlying won't move past your short strike — a bull put spread if you think it holds up, a bear call spread if you think it stalls. Time decay works for you; you profit if price stays out of the way (long vs short premium). Max gain is the credit; max loss is the width minus the credit, so credit spreads risk more to make less, in exchange for a higher probability.
Debit spreads pay you to be right about direction. Credit spreads pay you to be right about where price won't go, and let time do the work.
Choosing
Want a defined directional bet with time against you? Debit. Want to lean on theta and probability with time on your side? Credit (the iron condor combines two credit spreads). Both are defined-risk, unlike selling naked options (naked-options risk). See also how IV affects both.
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NoVo is a software tool for market analysis, not financial advice. This article is general education, not investment advice. Options trading involves substantial risk of loss, up to and including your entire capital. NoVo makes no guarantee of profit, win rate, or performance, and past results do not predict future outcomes. You are responsible for your own broker account, configuration, and trading decisions.
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