Many people who step into the world of options trading quickly run into frustration: things seem logical on paper, but in practice, trades don’t hold up. Especially when it comes to directional bets — buying a call in hopes of a rally, or a put in hopes of a crash. It sounds simple. But more often than not, it ends in losses.
The reason? You're betting on what you want to happen — not on what’s probable.
There’s another path — strategies that lean on high probability.
Strategies where you win not because the market moved how you predicted, but because it didn't go far enough to hurt you.
One such approach is the credit spread strategy built around selling 10-delta options.
This system doesn’t rely on predicting direction.
It relies on probability, defined risk, and sound math.
What Is a Credit Spread
Let’s back up for a second.
An option is a contract that gives the buyer the right (but not the obligation) to buy or sell a stock at a specific price (called the strike) before a specific date (called the expiration).
There are two basic types:
A call gives the right to buy (used when expecting a rise)
A put gives the right to sell (used when expecting a drop)
When you buy an option, you pay a premium.
When you sell an option, you collect a premium — that’s key.
A credit spread involves using two options of the same type (both calls or both puts), with different strikes:
You sell one (collecting premium)
You buy another (paying a smaller premium to cap your risk)
The difference between the two premiums is your credit — your potential profit.
Why it works:
Your risk is capped
Your maximum profit is known up front
And your chance of success can be high — if you pick strikes far enough from current price
What Does “10 Delta” Mean — and Why It Matters
Here’s the core.
Delta is a number that tells you two things:
How much the option price moves relative to the stock
(And more importantly for us) the rough probability that the option will expire “in the money”
Example:
A delta of 0.50 = about 50% chance of finishing in the money
A delta of 0.10 (aka 10 delta) = about 10% chance
So, if you sell a 10-delta option, you’re basically saying:
“I’m betting there’s a 90% chance the stock won’t reach this level by expiration.”
You're not trying to guess direction.
You're acting like an insurance company, selling protection on events that probably won’t happen — and collecting a premium for doing it.
The Two Sides: Bullish and Bearish 10-Delta Spreads
The beauty of this strategy is that it works in both directions — you just flip the setup.
🔻 Bear Call Credit Spread
You sell a call option with 10 delta, and buy a higher-strike call to cap your risk.
This setup profits if the market:
drops,
moves sideways,
or even rises slightly — as long as it doesn't reach your short strike.
Best used when the market is overbought or after a sharp rally.
🔺 Bull Put Credit Spread
You sell a put option with 10 delta, and buy a lower-strike put to limit your downside.
This setup profits if the market:
rises,
stays flat,
or even drops slightly — as long as it stays above your short strike.
Best used after panic selling, at support, or when the market feels exhausted to the downside.
In both cases, your edge is this:
You’re not betting on where the market will go — only on where it probably won’t.
That’s why 10-delta options are used: they mark the levels least likely to be touched.
Real-World Example
Let’s say a stock is trading at $100.
You sell a call option at the $112 strike (which has ~10 delta), expiring in 30 days.
You collect $0.85 in premium.
To define your risk, you buy a call at $117, paying $0.20.
Your total:
Collected: $0.85
Paid: $0.20
Net credit: $0.65 per share × 100 shares = $65 total (your max profit)
Max risk: $5.00 spread width – $0.65 = $4.35 per share × 100 = $435
So you’re risking $435 to potentially make $65 — that’s a 14.9% return on capital in 30 days, with roughly a 90% chance of profit.
Want to visualize this? Try tools like OptionStrat.
Why This Can Work Consistently
Probability of Touch vs. Probability of Profit
The market may “touch” your short strike — but that doesn’t mean it stays there.
Often it reverses before expiration.
That’s why probability of touch is higher than probability of loss.
You have room to be wrong temporarily and still win.
You Profit from Market Emotion
Most traders chase action.
This strategy profits from selling what others are afraid of (or hopeful for).
You’re taking the other side of fear and greed — collecting premium from those who overpay for unlikely outcomes.
It shines in moderate or high implied volatility
When volatility rises, premiums expand.
That means you can:
Collect more credit at the same strike
Or go further out-of-the-money for the same return
Either way, the setup becomes more attractive.
What Can Go Wrong
Big move against your position — delta increases fast. You must have a plan to exit early and not let a 90% win become a 100% loss.
Earnings or binary events — never place a spread on a stock with an upcoming earnings report. Even 10-delta won’t save you from a surprise move.
Overconfidence — risking $450 to make $50 sounds safe, but don’t go all-in. This strategy works through repetition, not oversized positions.
Tools That Help
TC2000 — to spot overbought/oversold charts and potential reversal patterns
OptionStrat — to model spreads, visualize risk/reward, and track delta exposure
Google Sheets — for calculating max profit, risk, and keeping a trade log
Conclusion
The 10-delta credit spread strategy is a way to trade with probability, not prediction.
It gives you:
Defined risk
A repeatable edge
Flexibility to exit early
And a framework that aligns with market logic
It’s not a magic formula.
But it’s a system — one you can test, refine, and scale with confidence.
Disclaimer
All content is for informational purposes only and does not constitute financial advice.Any trades or strategies should be tested in a simulated environment before use.Trading involves risk, and all decisions are the sole responsibility of the reader.