Investing with options, what you need to know
Investing with options is incredibly popular and that is not surprising since it can be very fun and can bring you a lot of profit. However, the necessary basic knowledge about options is required to be able to trade with options in a good way. That is why you can read everything about options below. You will get the explanation you need and along the way also some tips to be able to make as much return as possible.
Options, what are they actually?
It is not at all strange if you do not know what options are. It is wise to first go to our page: ‘ what are options? ‘. Here you can read exactly what options are. Then you come back here to read how to invest with options.
How do you read option quotes?
It is important to know when an option expires, or expires. You can always find this in the name of the option. You can also find the exercise price of the option in the name. It is therefore important to be able to read the name of an option well. Below you will find an example of an option listing:
C AEX 350 FEB 2021

What can you conclude from this name?
C
The first letter can be a C or a P. If there is a C then this is a call option . If there is a P then this is a put option .
AEX
In the second place in the listing you will find the underlying value of the option. With this option you can see that it is about the AEX index. The value is always expressed in an abbreviation. For example, MT can stand for the Arcelor Mittal share or RD for Shell. In this case you are dealing with an AEX option .
350
The third part of the listing is about the strike price. For this option, that means the AEX position: 350. As long as the AEX is at 350 or lower, the value of this option is zero.
FEB 2021
The last part indicates the date on which the option expires. Here you will always find the date and the year. If nothing more than that is stated, then the option always expires on the third Friday of the month. On this third Friday all option series always expire automatically. If the option expires earlier, for example after 2 weeks, then it says AX2.
Price quotation
When you buy the option, in most cases you enter into an obligation of 100 times the underlying value. The price is indicated per unit of the underlying value. In short, when you buy an option with a value of €6.50, you pay €650 for 1 option contract. You also have to pay transaction costs. If you sell an option, or write it, you get 100 times the value.
Why do you pay more than the value? It is in the time and expectation value
We can best explain this part of options by means of an example. Let’s take our old option again: C AEX 350 FEB 2021.
It is now January 3, 2021 and you buy the option. The price is currently €4.25 and the intrinsic value of the option is one euro. The AEX is currently slightly higher than the strike price of 350, namely 351. As you may know, this is €1 on the AEX. You have to do this times the fixed contract size of one hundred. In the end, you still pay €4.25 for the option. Why is that?
The option price is getting closer to the underlying value of the option
The expiration date, or expiration, of our option from the example is on the third Friday of February in 2021. In short, the option will not expire for another month and a half and a lot can still happen during this period. The price can rise considerably, but it can also certainly fall. We simply do not know yet and that applies to everyone.
There is clearly uncertainty here. This uncertainty is reflected in the price: it explains the difference between the intrinsic value and the actual price of the option. We also call this the time and expectation value. In most cases, this difference becomes smaller and the price comes closer to the intrinsic value of the option. If you trade with options, you should look carefully at the time and expectation value of the option. You should also consider whether you want to pay the difference.
The volatility of the price: does the price move a lot or not?
The extent to which the price moves strongly influences the time and expectation value. This means that the volatility of the price is of great importance for the time and expectation value. In our example, you bought the option at a price of €4.25 and this was in a quiet and stable period on the market. Due to all the circumstances in the world in the period after that, the prices started to fluctuate strongly. The market was very volatile.
In the middle of this period on February 1, the premium of this option is suddenly €6.50. Due to all the uncertainties, investors are now prepared to pay an even higher price for the option despite the fact that the AEX is simply back at 351. In short, the volatility of the price strongly determines the price of the option.

Should you buy the option or write it?
When it comes to options, you have two options. You can buy an option or sell an option. Selling an option is also known as writing an option in jargon. We will use our example again to look at both matters. In both examples, transaction costs are not included. In practice, they are there and this affects the return.
Situation 1: You buy the option C AEX 350 FEB 2021
You expect the AEX to rise based on your knowledge, experience and perhaps your feeling. At the moment you pay 100 times €4.25 (€425,-) for the option. In order to make a profit or at least get your investment back, the AEX must be at least 354.25 at the time of expiration. You calculate this by adding the premium you paid, €4.25 in this case, to the strike price of 450 without the transaction costs. (350 + 4.25 = 354.25) Below you can see the different outcomes for the AEX positions during the expiration date.
Scenario | AEX position | Value of option at expiration date | Result |
---|
1 | 349 | €0 | -€425 |
2 | 350 | €0 | -€425 |
3 | 351 | €100 | -€325 |
4 | 355 | €500 | €75 |
5 | 360 | €1.000 | €575 |
6 | 365 | €1.500 | €1.075 |
7 | 370 | €2.000 | €1.575 |
From this we can draw the following conclusion. You can never lose more than €425, while you can make an infinite amount of profit. The point is that the AEX is much higher during the expiration date compared to the purchase date. Now let’s look at writing the option.
Situation 2: You write (sell) the option C AEX 350 FEB 2021
In this case you expect the AEX not to rise. You are not going to buy the option, but you write it and receive €450 from another trader. What are the outcomes on the expiration date in this case?
In this case, you can earn a maximum of €425 and lose in fact unlimited. The higher the AEX ends, the higher the loss. You must eventually buy back the written options on the expiration date (or in between).
Scenario | AEX position | Value of option at expiration date | Result |
---|
1 | 349 | €0 | €425 |
2 | 350 | €0 | €425 |
3 | 351 | €100 | €325 |
4 | 355 | €500 | -€75 |
5 | 360 | €1.000 | -€575 |
6 | 365 | €1.500 | -€1.075 |
7 | 370 | €2.000 | -€1.575 |
In this case, you can earn a maximum of €425 and lose in fact unlimited. The higher the AEX ends, the higher the loss. You must eventually buy back the written options on the expiration date (or in between).
Investing responsibly with options
We will conclude this piece with some ideas on how to invest safely and responsibly with options. Finally, you will also get some tips.
1. Using options as an additional return on equity investments
A very popular way to trade options is using stocks . In this case, you combine the option with underlying values, which consist of stocks. These stocks are actually a protection against the risk you run with options. How does that work?
Let’s look at an example again. You as a trader own 300 shares in Z. On February 3, 2018, the price is €9.90 and you think, based on your knowledge and insights, that the price will rise over the coming period. Now, to make extra returns, you want to use options. Since you have 300 shares, you can conclude 3 contracts, because each contract consists of 100. In short, you write a call option 3 times, which for example is CX APR 2021 10.40. You receive a premium of €0.70 per option, what are the consequences of this transaction?
Consequences of an options trade
Step 1: As a result of the transaction, you will receive an option premium of €70 x 3, by writing 3 option contracts and you will receive €210.
Step 2: With this transaction you are obligated to deliver 300 shares at €10.40 on the expiration date. This should not be a problem, because you already have the 300 shares.
Step 3: Now you have maximized the proceeds of the sale of the share at the price of €10.40. When the price rises above this, it becomes interesting for the buyer to exercise this. This means nothing more than that the buyer wants to take over your shares at the agreed price.
Continue option trade
Now the question is whether you should roll over or not . We have arrived at the expiration date: the third Friday of April. The price of your share is €10.30. This is a very good development for you, because you can probably keep the option premium you received, while the value of your shares has also increased. Now you are faced with a choice to do one of the following three things:
Option 1: You choose eggs for your money and you take the profit. In this case you sell your shares on Monday and so you take 300x 40 cents. In addition, you have also earned the €210 option premium. All in all, this is a very nice profit.
Option 2: Of course, you can also roll over and try to earn more. You are basically just going to do the same thing again. You write out the option again, but this time at the market value of €10.40 and with a new expiration date. You are playing exactly the same game and you can make a profit in the same way, but of course you will lose something again. Although you can lose due to a price drop, you will still receive the option premium.
Option 3: You think the price will continue to rise and that is why you do nothing. You do not write an option, because this limits the size of your profit in this case.
This is the game and you as a smart trader must carefully consider what situation you are in and what the best strategy is.
2. Using Options to Buy Stocks at a Discount
You can also use options to buy shares at a discount. This works as follows. In February, you are going to buy shares in Z again. The price is currently €8.80 and you think that is a good time to invest in this share. You can buy these shares in the normal way, but you can also buy them via a put option to get a discount on this transaction in the long term. In February 2021, you write 3 put options with €8.80 as the exercise price. You get 3 times €0.60 times 100 and that is €180. What happens now?
- This transaction obliges you to buy the shares at the price of €8.80 on the expiration date.
- You will receive €180,- as option premium. You can see this as a discount on the purchase and so you pay less than originally for the shares.
This is of course a nice discount, but it can also turn out less well in two ways. For example, the value of the share may have already risen sharply in the meantime. If you had owned the share immediately, you could have made a lot of profit by now. In this case, you miss a good price increase. The price can also fall sharply and then you still have to buy the shares for the agreed price. This is part of the game. ‘You win some and you lose some’.
3. Using options to protect your stock portfolio
By now you will probably have a good idea of how to protect your shares with a put option. However, we will briefly discuss how to do this. Let’s say you have 100 shares Y, which are worth €1000 together due to the price of €10. You now buy a long-term put option on these shares with an exercise price of €9. For the shares you now have, you will receive at least €900 on the expiration date. You protect your value and you only have to pay the option premium for this. You can deduct this from any profit.
Closing tips
Here are two final tips to help you get started right away with trading options wisely.
First of all, it is important that you think carefully about what you want to achieve. Based on this, you can estimate whether the commitments you are making are smart or not. In addition, you must realize the financial consequences of your steps when you trade with options. With good knowledge, you can protect a lot of money and certainly earn a lot of money. Read more about options in our knowledge base .
Secondly, it is advisable not to take call options without them being covered by an underlying asset. In that case, the financial consequences may be too great. Be careful with what you do and never take too much risk, because this could easily mean the end of the game for you.
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