By Antonios Fotakis

A note before you read: Options are one of those words you’ve probably heard a hundred times – on the news, from a friend who “made a killing,” or in some app notification. This article won’t tell you to buy them. It won’t tell you to avoid them either. It’s here so that the next time someone mentions it, you actually know what is an Option and what they’re talking about – so you can decide for yourself if they belong anywhere near your strategy.

Let’s Start With Something You Already Understand

Imagine you find an apartment you love. It costs €200,000 today, and you have a strong feeling it’ll be worth a lot more in a year. The problem? You don’t have €200,000 right now.

So you make a deal with the owner: you pay them €2,000 today, and in exchange, they give you the right – but not the obligation – to buy the apartment for €200,000 anytime in the next 12 months, no matter what it’s actually worth by then.

A year later, two things could happen:

  • The apartment is now worth €250,000. You use your right, buy it for €200,000, and immediately have €50,000 in value – minus the €2,000 you paid upfront.
  • The apartment is now worth €150,000. You simply walk away. You lose the €2,000 you paid, but nothing more.

That right you paid €2,000 for? That’s an option.

So What is an Option Exactly?

If you strip away all the jargon, what is an option really? It’s a contract that gives you the right – not the obligation – to buy or sell something (usually a stock) at a fixed price, before a specific date.

That’s it. That’s the whole concept. Everything else is just details layered on top of this one idea.

Three things define every option contract:

  • Strike Price — the fixed price at which you can buy or sell
  • Expiration Date — the deadline by which you must decide
  • Premium — what you pay upfront to hold that right (your €2,000)

The Two Types of Options

There are only two kinds, and once you understand the apartment example, both are simple.

Call Option – the right to buy something at a fixed price. You buy a call when you believe the price is going up. This is exactly what happened in our apartment example.

Put Option – the right to sell something at a fixed price. You buy a put when you believe the price is going down, or when you want to protect something you already own – like buying insurance on a stock you hold.

Call OptionPut Option
Gives you the right toBuySell
You typically buy it when you think price willRiseFall
Common useBetting on growthBetting on decline, or protecting existing holdings

Where You’ve Probably Already Seen This Word

Once you know what to look for, options show up everywhere:

  • In financial news – headlines like “unusual options activity” on a stock usually mean traders are placing large bets on a big price move, often before earnings reports.
  • In “meme stock” stories – a lot of the wild price swings you’ve read about in stocks like GameStop were amplified by options trading, not just people buying shares.
  • At your job – if your employer has ever mentioned “stock options” as part of your compensation, that’s a related but different concept: a right to buy company shares later, usually as an incentive to stay and grow with the company. Same core idea (a right to buy at a fixed price), different context.
  • On investing apps – many brokers now show a small “Trade Options” button right next to the regular “Buy” button, often without explaining the difference in risk. This is part of why understanding the concept before touching it matters so much.

A Real Example, With Numbers

Say a stock is trading at €100. You buy a call option with a strike price of €100, expiring in 3 months, and you pay a premium of €5 per share (options are usually sold in contracts of 100 shares, so €500 total – but let’s keep it simple with 1 share).

Here’s what happens depending on where the stock ends up:

Stock Price at ExpirationWhat You DoYour Result
€130Exercise the option, buy at €100€30 gain, minus €5 premium = €25 profit
€105Exercise the option, buy at €100€5 gain, minus €5 premium = €0 (break-even)
€90Let the option expireYou lose only the €5 premium

Notice something important here: even if the stock only drops slightly, or barely moves, you can still lose your entire premium. The stock has to move enough, and in time, for you to actually profit. This is different from simply owning the stock, where any price above what you paid is a profit.

Why People Get Excited About Options

The appeal is obvious once you see the math: for a small amount of money (the premium), you can control exposure to a much larger amount of stock. In our example, €5 controlled exposure to a €100 stock – that’s leverage. If the stock moves the way you predicted, your percentage gain on the premium you paid can be enormous compared to just owning the stock outright.

Let’s compare the two paths directly, using the same €130 outcome from our table above:

Buying the Stock DirectlyBuying the Call Option
Upfront cost€100€5
Value at €130€130€25 profit
Return30%400%

Same stock, same price move, wildly different percentage return. This is the entire reason options attract so much attention – a relatively small move in the underlying stock can turn into a massive percentage gain on the premium you paid.

But leverage cuts both ways. The same mechanics that turned a 30% stock gain into a 400% option gain can just as easily turn a small stock decline into a 100% loss of your premium.

This is exactly why options attract so much attention. It’s also exactly why they carry real risk – which we’ll go into in detail in the next article of this series.


Curious how deep this rabbit hole goes? Grab our free Options Explained guide to dive even deeper and learn everything you need to understand the world of Options.

[Get the Complete Options Guide for Free →]

What We Do at AF Core Global

AF Core Global isn’t built around options, and it never will be. Our three strategies are built on ownership, patience, and transparency:

FORTRESS – Stable ETFs and bonds for long-term, low-drama growth.

CASH FLOW – REITs and dividend stocks that pay you to hold them.

HIGH VOLTAGE – High-risk, high-upside individual stocks, always with full transparency on entry price.

Options don’t fit neatly into any of these – and that’s intentional. This series exists so you can understand what options actually are, decide for yourself whether they belong in your world, and make that choice with your eyes open.

Not blind trust. Informed choice.

Quick Recap

If someone asks you “what is an option” after reading this, here’s the entire concept in three lines:

  • An option is a contract giving you the right, not the obligation, to buy or sell at a fixed price before a deadline.
  • A call bets on the price going up. A put bets on the price going down (or protects something you own).
  • You pay a small premium upfront — and that premium is the most you can ever lose on the trade.

A Short Glossary of Terms You’ll See Again

We’ll use these terms throughout the rest of this series, so it helps to have them in one place:

  • Strike Price – the fixed price written into the contract at which you can buy or sell.
  • Expiration Date – the last day the option can be used before it becomes worthless.
  • Premium – the price you pay to purchase the option itself.
  • Exercise – the act of actually using your right to buy or sell at the strike price.
  • In the Money – when exercising the option would currently be profitable.
  • Out of the Money – when exercising the option would currently result in a loss, so you’d let it expire instead.
  • Assignment – what happens to the person on the other side of the contract when you exercise your option; they’re obligated to fulfill it.
  • Underlying Asset – the stock (or other security) the option contract is based on.

Coming Up Next in This Series

In the next article, we’ll break down calls and puts in much more detail – with side-by-side profit and loss scenarios that show exactly how much you can gain, and exactly how much you can lose. Understanding what is an option at a basic level is step one; knowing how each type behaves in the real world is step two.

Ready to keep learning? 📊 Check out our other Finance Basics guides, or see this week’s Radar Picks to see how we apply real strategy with real transparency.

Nothing in this article constitutes financial advice. This content is for educational purposes only. Options carry substantial risk, including the potential loss of your entire investment. Always do your own research and consult a qualified financial professional before making any investment decision.

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