Stock options let you take a position on a share price, protect an existing holding or accept an obligation to buy or sell shares. They also introduce something stock ownership does not have: an expiration date. A sensible forecast can still produce a losing trade if the timing or price paid is wrong.
For beginners in New Mexico, the starting point is the contract’s cash requirements and potential loss, not its advertised return. This guide covers exchange traded options on individual stocks, rather than employee compensation options. If buying and selling shares is still unfamiliar, start with the broader guide to stock trading in New Mexico before adding contracts with deadlines and delivery obligations.
What a Stock Option Actually Gives You
A stock option is a contract tied to an underlying stock. The buyer pays a premium for a right that lasts until expiration. The seller, also called the writer, receives that premium and accepts an obligation if the contract is exercised and assigned.
A call gives its buyer the right to buy shares at the contract’s strike price. A put gives its buyer the right to sell shares at that price. The seller takes the other side: delivering shares for an assigned call or purchasing them for an assigned put. These rights and obligations are covered in FINRA’s overview of options contracts.
A standard, unadjusted stock option usually represents 100 shares. Premiums are generally quoted per share, so a displayed premium of $2 means $200 for one contract, before fees. Corporate actions can change a contract’s deliverable, so check the actual terms rather than assuming every contract represents 100 ordinary shares.
Before placing an order, identify the stock ticker, call or put, strike price, expiration date, contract quantity and total premium. Getting five of those six fields right is not close enough.
A Call Option Example: Why a Rising Stock Can Still Lose Money
Suppose fictional XYZ stock trades at $49. You buy one call with a $50 strike price for a $2 premium. With a 100 share contract, your initial payment is $200, excluding fees.
At expiration, the call has value only to the extent that XYZ trades above $50. Your break even price is $52: the $50 strike plus the $2 premium. The following figures show the option’s economic result at expiration, before fees and any later changes in shares acquired through exercise.
| XYZ price at expiration | Contract’s intrinsic value | Profit or loss after premium |
|---|---|---|
| $45 | $0 | −$200 |
| $50 | $0 | −$200 |
| $51 | $100 | −$100 |
| $52 | $200 | $0 |
| $55 | $500 | +$300 |
Notice the $51 outcome. The stock rose from $49, and the call finished “in the money,” but you still lost half the premium. Being right about direction did not cover the price of admission.
A purchased put works in the opposite direction. A $50 put bought for $2 has an expiration break even price of $48. If the stock finishes at $40, its intrinsic value is $1,000 per standard contract, producing an $800 profit after the $200 premium, before fees.
These are expiration calculations, not forecasts of what an option will trade for beforehand. Selling the contract before expiration produces a result based on the actual sale price.
Why Option Prices Change Before Expiration
An option’s premium reflects more than the current stock price. Time remaining and expected volatility also affect its value. A call may lose value despite a modest stock gain if time passes or the market’s expectation of future price swings falls.
Intrinsic value is the amount by which the option is in the money. A call has intrinsic value when the stock exceeds its strike; a put has intrinsic value when the stock falls below its strike. Any premium above intrinsic value is time value.
Three terms help explain changing prices. Delta describes sensitivity to movements in the stock. Theta describes sensitivity to passing time. Vega describes sensitivity to changes in implied volatility. These are estimates, not promises; the Options Industry Council’s explanation of volatility and the Greeks details their relationships.
For a beginner, the practical question is whether the expected move is large enough, soon enough, to justify the premium. “I think this company will do well eventually” is not a complete options trade.
Common Strategies and Their Tradeoffs
Buying Calls or Puts
Buying a call expresses a bullish view; buying a put can express a bearish view. For the purchased option itself, the maximum loss is the premium plus transaction costs. That boundary does not extend to a stock position created by exercise.
Buying a put against shares you already own creates a protective put. It can establish a selling price during the option’s life, but the protection costs money and expires. Repeated purchases can become a substantial expense. Treat that expense as part of the investment decision, not an afterthought.
Selling Covered Calls
A covered call combines stock ownership with selling a call against those shares. For one standard contract, that usually means owning 100 shares. You collect the premium but may have to sell the shares at the strike price.
The trade exchanges some future upside for premium income. It does not remove the stock’s downside risk. A falling share price can overwhelm the premium received, and a sharp rally can leave you selling below the market price. OCC’s discussion of covered calls addresses both the income benefit and the ceiling on gains.
A useful test is whether you would genuinely accept selling the shares at the strike. If the answer is no, collecting the premium does not fix the mismatch.
Selling Cash Secured Puts
A cash secured put involves selling a put while reserving enough cash to purchase the shares if assigned. Selling one standard $50 put creates a potential $5,000 purchase obligation, even if the premium received is only a small fraction of that amount.
The Options Industry Council’s cash secured put guide treats this primarily as a stock acquisition strategy. The main question is whether you want the shares at the strike price, including after bad news makes that price look expensive.
Suppose you receive $200 for a $50 put and the stock later becomes worthless. The $5,000 purchase obligation, less the premium, leaves a $4,800 loss before costs. “Cash secured” describes how you fund the obligation. It does not mean the trade protects your capital.
Closing, Exercise and Assignment Are Different Events
You do not have to hold a purchased option until expiration. You can submit a sell to close order for the same contract series. A seller can submit a buy to close order to offset an outstanding short option. An order must execute to close the position; entering it is not enough.
Exercise uses the contract’s right to buy or sell shares. Assignment requires the option seller to meet the corresponding obligation. Standard listed options on individual US stocks generally use American style exercise, allowing exercise before expiration. Sellers should therefore prepare for early assignment, not just an expiration day decision, as detailed in FINRA’s explanation of options assignment.
Return to the $50 call example. Exercising one standard contract requires paying $5,000 to acquire 100 shares. That is separate from the $200 premium already paid. A profitable option can therefore create a stock purchase far larger than its original cost.
In the money options are generally subject to automatic exercise procedures at expiration, with exceptions and broker instructions affecting the outcome. Confirm your broker’s exercise policy, funding requirements and instruction deadlines before expiration. Read OCC’s Characteristics and Risks of Standardized Options before trading, including its exercise and writer risk disclosures.
Avoid uncovered calls while learning. Selling a call without the shares can expose you to theoretically unlimited losses as the stock price rises. Receiving a small premium does not place a small ceiling on the obligation.
Opening an Options Account in New Mexico
Having a stock brokerage account does not automatically authorize options trading. Your broker must approve options activity and determine which strategies the account may use. Applications generally ask about trading experience, financial circumstances, objectives and ability to bear losses. Approval levels and their names vary between firms; the SEC’s bulletin on opening an options account describes the process.
Answer those questions honestly. Approval is permission to use a strategy, not a judgment that the strategy will make money. Ask which activities require a margin account and what happens if exercise or assignment creates an obligation your account cannot support.
For New Mexico residents, verify the brokerage firm and any representative before funding an account. Check registration status and disciplinary disclosures rather than relying on a familiar name or polished app. The New Mexico Regulation and Licensing Department’s investor checking resources direct residents to registration databases and Securities Division assistance.
Also confirm the time zone used for order entry and exercise deadlines. Do not assume a platform displays every cutoff in New Mexico’s Mountain Time.
Costs and Execution Deserve Their Own Check
Compare the total cost of opening and closing a position, including contract charges and any exercise or assignment fees. Then examine the bid and ask. A hypothetical option quoted at $1.80 bid and $2.20 ask has a $40 difference per standard contract between those prices. That matters against a $200 premium.
A limit order sets your maximum purchase price or minimum selling price, but it does not guarantee execution. Check the quote, available size and order status. Do not build a plan around always getting the midpoint.
When comparing stock brokers for New Mexico residents, examine options support alongside price. Ask how the firm handles expiring positions, what notices it sends and how you reach someone when an exercise question needs an answer. Those details deserve attention before the deadline, not during it.
A Practical Preparation Routine
Before risking money, write a plain language description of one hypothetical trade. State what must happen, by when, and what you lose if it does not. Calculate both the premium and the potential share purchase or delivery obligation.
- Confirm the contract terms, multiplier and total cash required.
- Set a dollar loss budget and an intended exit before expiration.
- Check upcoming company events and your broker’s deadlines.
- Decide what you would do if exercise or assignment created a stock position.
Practicing with hypothetical trades can expose mistakes in contract selection and arithmetic. Do not treat assumed execution prices as evidence that a strategy works with real orders.
Keep confirmations and records of premiums, fees, closing transactions, exercise and assignment. Review the guide to tax records and reporting for New Mexico traders before activity becomes difficult to reconstruct. Seek qualified tax advice when a strategy creates questions you cannot resolve from your records.
Options are optional. If you cannot explain the obligation, fund the possible outcome and monitor the deadline, owning shares without an options position is a valid decision. This guide provides education, not a recommendation to place a trade.