Stock Options Explained for Beginners (2026): Calls, Puts, Real Examples, and Why Most People Should Start With Just Two Strategies
A stock option is a contract giving you the right, but not the obligation, to buy (call) or sell (put) 100 shares at a set price (the strike) before a set date (the expiration). You pay a price for that right, called the premium. Buying options can lose 100% of what you pay if the stock doesn't move far enough, fast enough. Most beginners are better off starting with covered calls (selling calls on shares you own) or, where allowed, cash-secured puts, and treating option buying as a small, speculative slice of their portfolio.
Options are one of the most searched topics in investing, and one of the most misunderstood. Social media shows screenshots of 500% gains. It rarely shows the far more common result: the option expiring worthless.
This guide explains how options work in plain English, with dollar examples.
The two basic options: calls and puts
| Call option | Put option | |
|---|---|---|
| Gives you the right to... | Buy 100 shares at the strike price | Sell 100 shares at the strike price |
| You profit when the stock... | Rises above the strike (plus the premium) | Falls below the strike (minus the premium) |
| Typical use | Betting on a rise; or selling calls for income | Betting on a fall; or insuring shares you own |
Five terms you'll see everywhere:
- Strike price: the price at which you can buy (call) or sell (put).
- Expiration: the last day the option exists.
- Premium: the price of the option, quoted per share.
- Contract: one option usually covers 100 shares. A $2.00 premium costs $200.
- In / out of the money: whether the option would be worth anything if it expired today.
A worked example: buying a call
A stock trades at $100. You think it will rise. You buy one call with a $110 strike expiring in three months, for a premium of $3.00. Cost: $300.
At expiration:
| Stock price at expiration | Option value | Your profit or loss |
|---|---|---|
| $100 (unchanged) | $0 | −$300 (−100%) |
| $110 | $0 | −$300 (−100%) |
| $113 | $300 | $0 (break-even) |
| $120 | $1,000 | +$700 (+233%) |
| $130 | $2,000 | +$1,700 (+567%) |
Notice two things:
- The stock has to rise 13% in three months just for you to break even.
- If the stock rises 10%, a great result for a shareholder, you still lose everything.
That's the trade-off. Leverage magnifies gains, but you can be right about the direction and still lose.
Why time works against option buyers
An option's premium has two parts: its intrinsic value (how far in the money it is) and its time value (the chance it becomes more valuable before expiring).
Time value shrinks every day, faster as expiration approaches. This is called time decay. If you buy an option and the stock goes nowhere, you lose money anyway.
That's why option buyers tend to lose money over time, and option sellers, who collect the premium, tend to win small amounts more often. Sellers take on a different risk: occasional large losses.
Buying a put: insurance for your shares
You own 100 shares at $100. You're nervous about a drop. You buy a $90 put for $2.00 ($200).
- If the stock falls to $70, you can still sell at $90. Your loss is capped at about $10 a share plus the $2 premium.
- If the stock rises, the put expires worthless. You lost $200, like an insurance premium you didn't need.
This is called a protective put. It's one of the few option uses that reduces risk.
The two strategies most beginners should learn first
1. Covered calls: earn income on shares you own
You own 100 shares at $100. You sell a $110 call expiring in one month and collect $2.00 ($200).
- Stock stays below $110: the call expires worthless. You keep the $200 and your shares.
- Stock rises above $110: your shares are sold ("called away") at $110. You keep the $200 plus the $10 gain, but miss any rise above $110.
The trade-off: steady income, but you cap your upside. Covered calls are the strategy behind popular high-yield ETFs. See Covered Call ETFs Explained.
2. Cash-secured puts: get paid to wait for a lower price
You'd like to own the stock, but at $90, not $100. You sell a $90 put and collect $2.00 ($200). You set aside $9,000 in cash.
- Stock stays above $90: you keep the $200. Nothing else happens.
- Stock falls below $90: you must buy 100 shares at $90. Your real cost is $88 after the premium.
The trade-off: if the stock collapses to $60, you still pay $90. Only sell puts on stocks you'd genuinely be happy to own.
What you need to start
- Options approval from your broker. You'll answer questions about your experience, income and goals. Most brokers use levels: covered calls are usually level 1; buying calls and puts is level 2; complex spreads and naked selling come later.
- Account type: see the next section.
- A plan: decide your maximum loss before you place the trade.
Options in a TFSA, RRSP or IRA
Canada (TFSA and RRSP): listed calls and puts are qualified investments. The CRA says writing covered calls does not, by itself, make a plan "carry on a business." It warns that writing uncovered calls or puts "may result in the plan being considered to be carrying on a business," which can make gains taxable. Many brokers therefore allow buying options and covered calls in registered accounts, with tighter rules on cash-secured puts. Frequent trading in a TFSA can also draw CRA attention. Canadian equity options trade on the Montréal Exchange.
US (IRA and Roth IRA): many brokers allow covered calls, cash-secured puts and buying calls and puts. Anything that requires margin isn't allowed.
Five mistakes beginners make with options
- Buying cheap, far out-of-the-money calls. They're cheap because they rarely pay off.
- Betting too much. Treat bought options as money you can afford to lose entirely.
- Ignoring earnings dates. Option prices rise before earnings and often collapse after, even if the stock moves your way. This is called "IV crush."
- Holding to the last day. Time decay accelerates in the final weeks.
- Selling naked options. Selling a call without owning the shares has theoretically unlimited risk.
Taxes, briefly
- US: gains on options held one year or less are short-term capital gains, taxed as ordinary income.
- Canada: gains are usually capital gains, but frequent trading can be treated as business income, which is fully taxable. Premiums from covered calls are generally treated as capital gains.
Bottom line
Options are a tool, not a shortcut. Used carefully, they can generate income or protect a portfolio. Used as lottery tickets, they usually lose. If you're a beginner, start with covered calls on shares you already own, keep any option buying small, and never risk money you can't afford to lose.
Frequently asked questions
What is a stock option in simple terms?
It's a contract that gives you the right to buy or sell 100 shares of a stock at a fixed price before a set date. A call option profits if the stock rises; a put option profits if it falls. You pay a premium for the contract, and if the stock doesn't move the way you need before expiration, the option can expire worthless.
How much money do you need to trade options?
Buying a single option contract can cost anywhere from a few dollars to thousands, depending on the stock and strike. Premiums are quoted per share, so a $2.00 premium costs $200 for one contract of 100 shares. Selling covered calls requires owning 100 shares of the stock, and cash-secured puts require enough cash to buy 100 shares at the strike price.
Why do most people lose money buying options?
Because options lose value as time passes, a process called time decay. A call buyer needs the stock to rise above the strike price plus the premium paid, before expiration. The stock can rise and you can still lose money if it rises too slowly or not far enough. Options that expire out of the money are worth zero.
Can you trade options in a TFSA or RRSP?
Yes, with limits. Buying listed calls and puts, and writing covered calls on shares you own, are generally allowed. The CRA says writing uncovered calls or puts in a registered plan may be treated as carrying on a business, so many brokers restrict cash-secured puts in registered accounts. Naked options and margin aren't allowed. Check your broker's rules.
Can you trade options in a Roth IRA?
Many US brokers allow limited options strategies in IRAs, typically covered calls, cash-secured puts and buying calls or puts. Strategies that require margin, such as naked calls, aren't permitted. You'll need options approval from your broker.
Primary sources
Data & disclaimer: This article is for educational purposes only and is not financial or investment advice. Figures reflect data available as of Sep 26, 2026, and conditions change — always confirm current pricing, rates and rules with the provider before you act. Written by Elizabeta Dimoska. See our editorial standards and disclosure.
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