Options

How to Choose a Strike Price and Expiration Date for Options

Level: Intermediate · 9 min read · Updated October 11, 2026

To choose a strike price, start from your plan on the stock chart, not from the option's price. Mark the entry, the stop and the target on the underlying. Then pick a strike the stock can pass well before your target, and an expiration date that gives the move more time than you expect it to need. Cheap out-of-the-money strikes need a bigger, faster move just to break even.

This guide covers how to pick a strike price for options you buy: what ITM, ATM and OTM mean for calls and puts, how delta helps you compare strikes, how to choose an options expiration date, the liquidity checks that protect you from bad fills, a checklist, and a hypothetical comparison of three strikes on the same chart plan, including the case where the trade fails. Buying options is risky, and you can lose the whole premium.

A hand-drawn trade plan with an entry, a dotted stop below it and a dashed target above it: the target on the stock chart is the yardstick for every strike you consider.

What do ITM, ATM and OTM mean for calls and puts?

Every option has a strike price: the price at which it lets you buy the underlying (a call) or sell it (a put). Where the strike sits relative to the current stock price is called moneyness, and it shapes almost everything about the contract: what it costs, how fast it moves and how likely it is to be worth anything at expiration. A standard US stock or ETF option covers 100 shares, so a premium quoted at $2.50 costs $250 per contract.

Take a stock at $100. The $95 call is in the money by $5, the $100 call is at the money and the $105 call is out of the money. For puts it flips: the $105 put is in the money by $5 and the $95 put is out of the money. If calls and puts are still new to you, start with call vs put and our options trading for beginners guide.

In the money (ITM): A call whose strike is below the stock price, or a put whose strike is above it. It has intrinsic value: what it would be worth if exercised right now.
At the money (ATM): An option whose strike equals the stock price, or is the closest listed strike to it. It has no intrinsic value, only time value, and it has the most exposure to time decay.
Out of the money (OTM): A call with a strike above the stock price, or a put with a strike below it. Its premium is all time value, and it expires worthless unless the stock gets past the strike.
Intrinsic value: For a call, the stock price minus the strike; for a put, the strike minus the stock price. It is never below zero.
Time value (extrinsic value): Everything in the premium above intrinsic value. It pays for time and expected movement, and it shrinks toward zero by expiration.

How does the strike trade cost against probability and leverage?

Choosing a strike is a trade-off between three things you cannot have at once: a low cost, a high chance that the option finishes in the money, and a big percentage move in the option if the stock moves. When you move the strike, all three change together.

A cheap contract is not a low-risk contract. Each one can lose 100% of what you paid, and a low price per contract tempts many traders into buying more of them.

In the money: costs the most, because you pay for intrinsic value. It moves most like the stock, needs the smallest move to break even and has less time value to lose. The percentage gain on a good move is smaller, and the dollar amount at risk per contract is larger.
At the money: the middle ground. It carries the most time value, so time decay hits it hardest in dollars, but it reacts quickly once the stock moves.
Out of the money: the cheapest per contract, which is why it tempts. The premium is all time value, the stock must travel past the strike plus the premium to break even, and the chance of expiring worthless is the highest. The big percentage gains people post come from the times a fast move arrived; the many times it did not are rarely shown.

How to use delta to choose a strike price

Delta measures how much an option's price is expected to change for a $1 move in the underlying. Call deltas run from 0 to 1 and put deltas from 0 to −1. An at-the-money option sits near 0.50 (−0.50 for a put), deep in-the-money options approach 1 and far out-of-the-money options approach 0. Many traders also read delta as a rough, model-based estimate of the chance the option finishes in the money. Treat it as an estimate, not a forecast.

That makes delta a handy way to compare strikes without memorizing prices. A 0.70-delta call behaves like about 70 shares per contract and needs a smaller move; a 0.30-delta call behaves like about 30 shares and needs a bigger, faster one. Delta itself shifts as the stock moves and as expiration nears, a change measured by gamma. Our guide to the options Greeks covers each of them.

Around 0.70 to 0.80 (in the money): more stock-like, a higher cost, smaller percentage swings.
Around 0.50 (at the money): balanced, with the most time value exposed to decay.
Around 0.30 or below (out of the money): cheaper, more sensitive to timing, and more often worthless at expiration.

How to match the strike to your target on the underlying

This is the step most beginners skip. Your chart plan already says where the stock should go: the target. The strike has to make sense at that price. For a call held to expiration, the break-even is the strike plus the premium; for a put, the strike minus the premium. If the break-even sits beyond your target, the trade can lose money even when your chart plan works.

A quick example: a stock at $100, a target at $106 and a $108 call for $0.95. Its break-even at expiration is $108.95, almost $3 past the target. If the stock reaches $106 and stalls, your plan was right and the call still expires worthless. Before expiration it keeps some time value, so you may sell it for something on the way, but how much depends on how fast the move comes. If you will sell long before expiration, the math is about delta, decay and the spread rather than the expiration break-even, yet a strike beyond the target still needs the stock to move fast or overshoot your plan.

For puts, mirror it: the strike minus the premium should sit clearly above your downside target. Test any contract against both your target and your stop in our options profit calculator before you buy it.

A hand-drawn price line with the stock at $100, the chart target at $106, the $108 strike and the break-even at $108.95 ($108 plus the $0.95 premium): the shaded gap shows the break-even sitting almost $3 past the target, so if the stock stops at $106 the call expires worthless.

How to choose an options expiration date

The options expiration date is the last day the contract exists. Pick it from the chart, not from the price tag. Ask how long the move to your target usually takes on the timeframe you trade, then give the contract more time than that. Many traders allow at least twice the expected holding time, so the idea has room to play out before decay takes over. That is a rule of thumb, not a law.

Time decay (theta) is not linear. The rate of decay tends to increase as expiration gets closer, and at-the-money options feel it most. A contract with three days left can lose a large share of its remaining time value in one quiet session, while one with 45 days left barely notices the same day.

Plan to be out before the final day if you can. A US stock or ETF option that finishes $0.01 or more in the money is normally exercised automatically unless your broker gets other instructions, so one long call can turn into 100 shares you must pay for.

Monthly options: most US stock options have a standard monthly expiration, usually the third Friday of the month. When that Friday is an exchange holiday, expiration moves to the Thursday before it.
Weekly options: many popular stocks and ETFs also list weekly expirations, and SPY and QQQ list expirations for every trading day, Monday through Friday.
Short-dated (days): cheaper and very reactive, but decay is fast and a late move can arrive too late. Same-day contracts are covered in our 0DTE options guide.
Longer-dated (30 to 60 days or more): cost more, decay more slowly per day and leave time for a swing trade to develop, but react more to changes in implied volatility.
Events: if earnings fall before your expiration, the premium usually prices that in, and implied volatility often drops sharply once the news is out. See our guide to implied volatility.

What liquidity should you check before you buy an option?

A good strike on a thin contract can still be a bad trade, because you pay the bid-ask spread on the way in and again on the way out. Check these in the options chain before you choose:

Open interest: the number of contracts still open at that strike and expiration. Higher open interest usually means more traders and market makers are active there. It updates once a day.
Volume: contracts traded today. A strike that is trading actively today is usually easier to get in and out of than one that has barely traded.
Spread as a percent of the premium: divide the spread by the midpoint. A $2.48 bid and $2.52 ask is a $0.04 spread on a $2.50 mid, about 1.6%. A $2.30 bid and $2.70 ask is $0.40, or 16%: buy at the ask, sell at the bid right away, and you lose $40 per contract before the stock has moved.
Order type: use a limit order near the midpoint rather than a market order. If the spread is large next to your planned profit, pick a more active strike or a more liquid underlying, or skip the trade.

Checklist: how to select a strike price for option buying

Run this list every time. It takes a couple of minutes and stops most impulse buys of cheap, far out-of-the-money contracts. For the account side, use our position size calculator.

Write the chart plan on the underlying first: direction, entry, stop and target. No plan, no contract.
Estimate how long the move to the target usually takes on your timeframe.
Pick an expiration that gives roughly twice that time, and check whether earnings or a major economic release falls inside it.
Shortlist two or three strikes around the money and note each delta.
Work out each break-even and drop any strike that needs the stock to go past your target.
Estimate the option price at your stop and at your target, for example with delta, and confirm the planned gain still beats the planned loss after the spread.
Check open interest, volume and the spread as a percent of the premium.
Size so that losing the entire premium would be an acceptable loss, then set your exits: the underlying hits the stop, the target or your time limit.

Worked example: three strikes, one chart plan (hypothetical)

All numbers here are hypothetical and rounded, picked to show the mechanics. They assume implied volatility stays the same and ignore spreads and commissions. Stock XYZ is at $100. The chart plan: buy at $100, stop at $97, target at $106, a move you expect to take one to two weeks, with a time stop at three weeks. You choose calls with 30 days to expiration and put roughly the same premium, about $700, into each choice.

The $95 call (in the money, delta about 0.75) costs $6.65, so 1 contract is $665, with a break-even at expiration of $101.65. The $100 call (at the money, delta about 0.53) costs $3.60, so 2 contracts are $720, break-even $103.60. The $108 call (out of the money, delta about 0.21) costs $0.95, so 7 contracts are $665, break-even $108.95, past the target.

Here are four ways the same plan can play out. Read the stop case first: any setup can fail, and the strike and size decide what that costs.

Stop hit: XYZ drops to $97 four days later and you exit. The $95 call is worth about $4.35 (−$230), the two $100 calls about $1.95 each (−$330) and the seven $108 calls about $0.35 each (−$420). The cheapest strike produced the biggest loss.
It stalls: XYZ creeps to $103 by day 21 and your time stop says get out. The $95 call is worth about $8.15 (+$150), the $100 calls about $3.85 (+$50) and the $108 calls about $0.45 (−$350). The stock rose 3% and the out-of-the-money position still lost about half its premium.
Target hit fast: XYZ reaches $106 on day 10 and you sell. The $95 call is worth about $11.35 (+$470), the $100 calls about $7.00 (+$680) and the $108 calls about $2.20 (+$875). This is the only case where the cheap strike came out ahead.
Target hit, but held to expiration: XYZ closes at $106 on expiration day. The $95 call is worth $11 (+$435), the $100 calls $6 each (+$480), and the $108 calls expire worthless (−$665, all of it), even though the chart plan worked.

A hand-drawn table of the worked example: rows for one $95 call, two $100 calls and seven $108 calls, about $700 of premium each, and columns for the four outcomes. Stop hit at $97: −$230, −$330, −$420. Stalls at $103 on day 21: +$150, +$50, −$350. Target $106 on day 10: +$470, +$680, +$875, circled as the only case where the cheapest strike came out ahead. Target held to expiration: +$435, +$480, −$665.

Where UpTickFlow fits when you choose a strike

Every step above starts from levels on the underlying. UpTickFlow, our invite-only TradingView indicator, helps with that first step only: it runs on the chart of the underlying and draws an entry, a stop and a target before the trade, the levels you test each strike against. It does not read options data, choose strikes or expirations, or place trades, and it was not built or tested specifically for options.

The contract stays your decision. How the indicator works is on our home page, and how to turn a chart signal into an options plan, step by step, is in how to trade options with TradingView.

Test yourself

4 quick questions on this lesson. Pick an answer to see why.

Question 1 of 4
The drawing is a plan on the stock chart: an entry, a dotted stop below it and a dashed target above it. You are considering a call whose break-even at expiration (strike plus premium) sits above that dashed target. What does that mean?
Turn your phone sideways to read the drawing. Tap to close.
Question 2 of 4
Your chart plan expects the move to your target to take about one week on your timeframe. Which expiration fits the rule of thumb in this guide?
Question 3 of 4
An option is quoted with a $2.30 bid and a $2.70 ask. If you buy at the ask and sell straight back at the bid, what happens?
Question 4 of 4
In the guide’s hypothetical, about $700 goes into each of three calls on a $100 stock, and the $97 stop is hit four days later. Which position lost the most?

Questions

How do I pick a strike price for options?

Start from your chart plan on the underlying. Shortlist strikes near the money, check each break-even against your target and each delta against how stock-like you want the position to be, then confirm the contract is liquid. The strike should not need the stock to overshoot your target.

Is it better to buy ITM or OTM options?

Neither is better in general. In-the-money options cost more but need a smaller move and carry less time value. Out-of-the-money options cost less per contract but need a bigger, faster move and expire worthless more often. The right choice depends on your target and how long the move should take.

What delta should I use to choose a strike?

There is no single right delta. Around 0.50 is at the money, 0.70 or higher is in the money and more stock-like, and 0.30 or lower is out of the money and depends more on a fast move. Delta changes as price and time change.

How far out should the options expiration date be?

Far enough for your idea to play out with time to spare. Many traders choose at least twice the time they expect the move to take. Short-dated contracts are cheaper but decay faster, especially in the final days.

What happens if my option expires in the money?

A US stock or ETF option that finishes $0.01 or more in the money is normally exercised automatically. A long call then becomes 100 shares per contract that you must pay for, and a long put sells 100 shares, or opens a short position if you do not own them. Check your broker's rules, or close the option before expiration.

UpTickFlow is our product. These guides are education, not financial advice. Trading involves a substantial risk of loss.