An option gives its buyer a right. An open futures position commits both sides to the contract’s terms. Both are derivatives, contracts linked to an underlying asset or market such as a share, stock index or commodity. The key difference is whether you hold a right or an obligation.
Derivatives can reduce a risk you already face or create a new exposure you did not have before. A protective option held alongside shares is doing a different job from a short-term option bought to bet on a price jump. The product name alone does not tell you whether the overall position is cautious or aggressive.
What problem is the contract supposed to solve?
Consider a food producer that needs to buy a commodity in several months. A sharp price rise would squeeze its margins. Fixing a price through a futures position can make the future cost more predictable, even though the firm gives up the benefit of some favourable price moves.
An investor faces a similar choice when paying for protection against a share-price fall. The protection has a cost. If the shares rise, that cost reduces the return. Its purpose was to limit damage in another outcome, so judging it only by whether it paid out misses the original decision.
A speculator has a different objective. They take exposure because they expect the market to move in their favour. There may be no existing asset or business risk being protected. The contract creates the risk they hope to profit from.
I start with the trade’s purpose, written in one sentence. If it is simply “make more money with less cash”, identify the exposure and obligations behind the small initial payment before looking at potential returns.
Calls, puts and the price of a right
A call option gives the buyer the right to buy the underlying asset at a specified strike price. A put gives the right to sell at that price. The option has an expiry date, and the buyer pays a premium for the right.
A fully paid purchased option can expire worthless. The loss on that option itself is limited to the premium and costs. That limit does not cover separate assets held alongside it, or a new position created by exercising the option.
Many standard equity option contracts cover 100 shares. A quoted premium of €1.50 per share would therefore cost €150 for one such contract. Contract sizes can differ or be adjusted, so read the specification rather than assuming that a small displayed price means a small total commitment.
Exercise rules also vary. Some options can be exercised before expiry, while others can be exercised only at expiry. Selling an option you own in the market is different from exercising it: you transfer the contract rather than using the right to buy or sell the underlying asset.
Why a rising share price can still leave you with a loss
Suppose a share trades at €40. You buy a call with a strike price of €44, paying €1.50 per share for a contract covering 100 shares. Your premium is €150.
At expiry, the share trades at €45. The call is worth €1 per share, or €100. The share rose 12.5%, but you lost €50 on the option before dealing costs. The rise was in the right direction and still not large enough to cover the premium.
The expiry break-even price in this example is €45.50 before costs: the €44 strike plus the €1.50 premium. If the share finishes at or below €44, the call has no exercise value and the full €150 premium is lost.
Before expiry, option pricing is more complicated because remaining time and expected volatility also matter. An option can have value even when immediate exercise would make no sense. As the deadline approaches, the opportunity for a favourable move changes.
This is why a long-term view does not automatically support a short-dated option trade. Believing a company will improve over three years is different from needing a large price move next month. The contract adds a deadline to the investment idea.
Protection has a price too
Now imagine owning 100 shares bought at €40 each, a €4,000 investment. You buy a put with a €36 strike for €1 per share, costing another €100. Your combined outlay is €4,100.
If the shares finish at €28 when the option expires, they are worth €2,800. The put represents €800 of value, the €8 difference between the €36 strike and €28 market price multiplied by 100. The combined value is €3,600, leaving a €500 loss against the €4,100 outlay.
Without the put, the shares alone would have lost €1,200. Protection has reduced the loss, but it has not removed it. You still bear the gap between the purchase price and strike, plus the premium.
If the shares instead finish at €48, the put expires worthless and the shares are worth €4,800. The combined profit is €700 before costs, compared with €800 from the shares alone. These examples use expiry values and leave out fees, dividends and taxes so the protection cost is visible.
Protection also expires. An option ending in June does not protect against a fall in September. Renewing it requires another decision and another price. That recurring cost belongs in the plan from the beginning.
Writing an option is not the same as closing one
Selling an option you previously bought closes that position. Writing an option means taking on the seller’s obligation in exchange for the premium. Similar-looking sell buttons can therefore describe very different risk changes.
An uncovered call writer can face theoretically unlimited losses as the underlying share price rises. A put writer can suffer a substantial loss if the underlying asset falls sharply. The premium received does not cap those losses.
This distinction is easy to overlook when someone presents option income as a routine extra return. The payment is compensation for accepting an obligation. Ask what happens when the option is exercised against you, what assets or cash you must provide and whether you can meet that obligation.
Futures: a commitment backed by margin
A futures contract fixes the terms of a future transaction. Contracts are standardised, and settlement can involve delivery or a cash payment based on the price difference. The contract specification tells you which applies.
You usually do not put up the entire underlying contract value. Instead, you post margin as security. Futures gains and losses are settled daily. Margin is therefore neither the purchase price of the underlying exposure nor a maximum-loss guarantee.
Take an illustrative contract worth €20 per index point. A 15-point move against your position produces a €300 loss. A 100-point adverse move produces a €2,000 loss. The calculation follows the contract multiplier, not the amount you happened to deposit.
If your account no longer meets the required margin, additional money may be needed and positions may be closed. Losses can exceed the initial deposit. The article on margin calls and forced selling explains that process in more detail.
Three checks before placing an order
First, translate the contract into actual exposure. Identify the underlying asset, the multiplier and the number of units controlled. Work out the result of a plausible adverse move in euros or your own account currency. A percentage on a trading screen is not enough.
Second, map the deadline and obligations. Establish when the contract expires, how it settles and what happens if you do nothing. A broker may have its own cut-off procedures. Do not leave the settlement question until the last trading day.
Third, consider whether you could exit when you need to. A wide gap between buying and selling prices adds cost. Thin trading can make a position difficult to close. A hedge based on an index may also behave differently from the individual shares you actually own.
Your household finances matter alongside the contract mechanics. Money needed for bills or emergencies should not become the reserve for an unexpected margin demand. The guide to how much emergency savings you need helps separate those purposes.
Leverage can also make it harder to follow a decision calmly. If a small market move creates a large account loss, the pressure to act grows quickly. That is where a plan for investing stress becomes relevant.
You can invest without using derivatives. If you cannot explain the exposure, the deadline and the worst obligations in plain language, pause the order. Understanding those three things is a more useful starting point than being impressed by a strategy’s name.