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July 18, 2017 at 6:26 pm
Sir, could you clarify for me what exactly an option buyer is paying? Is he or she paying a premium? Is premium the amount calculated using option pricing model? Are options traded on values calculated using the formula or premium? Could you explain with an example?
John Moffat says
July 19, 2017 at 8:42 am
The amount you pay to buy the option is the premium and is determined by the Black Scholes formula. You pay the premium whether or not you later exercise the option.
I work through examples in this and the second lecture.
July 19, 2017 at 2:55 pm
So options are traded on the premium values?
July 19, 2017 at 3:15 pm
The premium is another word for the price at which the option is traded.
(Don’t confuse the word with the other use of the word ‘premium’ in other contexts – it is not a premium in the sense of it being extra over and above something else 🙂 )
The above is only relevant for share options – real options are not traded, and foreign currency options have a different formula (testing on the formula for these options is no longer in the syllabus).
July 16, 2017 at 6:11 pm
Am I right to assume that in the case of put option, a shareholder already has a certain amount of shares and as a result, opts for buying a put option so that he or she can sell at a fixed rate?
July 17, 2017 at 8:26 am
As far as the exam is concerned – yes. Yes is the likely reason for buying put options. You are worried that the price of the shares will fall and therefore if the price does fall then you have the right to sell them at the fixed price. (But if the price of the shares rises, then you would not use the option but could sell the shares at the higher price.)
July 17, 2017 at 1:16 pm
Thank you, Mr Moffat. 🙂
July 17, 2017 at 3:44 pm
You are welcome 🙂
July 3, 2017 at 3:30 pm
Fantastic lecture Sir!
July 3, 2017 at 4:52 pm
Thank you 🙂
November 30, 2016 at 5:06 am
A very basic question: Value of an option is basically the premium payable right?
November 30, 2016 at 5:32 am
September 22, 2016 at 4:58 pm
July 2, 2016 at 2:20 pm
am confused, why do u said the call option is cheaper than the put option in this case?
the call option 5cent n the put option 28cent
July 2, 2016 at 7:22 pm
The prices of the two options depend on how likely they are to end up being exercised.
January 15, 2016 at 2:01 pm
@ Sir John Moffat,
Sir I was doing ‘Q59 UNIGLOW from Kaplan kit sep14 to aug15 edition’ on option pricing.
It is not difficult question but I just need to understand one point.
In answer it says we can use Delta to construct delta hedge and in order to protect against a fall in Uniglow’s share price, the easiest hegde would be to write (sell) options on Uniglow’s shares. (I am protecting the investment of my company in Uniglow’s shares).
So my question whether the option we sell is call or put option?
January 15, 2016 at 3:56 pm
We sell a call option (you could achieve the same ‘protection’ by buying a put option, but in the exam you always sell a call to create a delta hedge, unless told otherwise).
I do explain the reasoning behind this in the lectures.
January 16, 2016 at 11:04 am
Thank you very much sir.
January 16, 2016 at 3:06 pm
November 26, 2015 at 9:43 am
thank you. incredible lecture
November 26, 2015 at 11:37 am
Thank you for the comment 🙂
November 14, 2015 at 8:37 am
i still can’t figure out how you reached the figure of 0.045 while calculating d1 (0.1+0.5*0.4^2)0.25 . My answer is 0.105 i’m really confused please help..
November 14, 2015 at 8:39 am
(0.1 + 0.5 x 0.4 x 0.4) x 0.25 = (0.1 + 0.08) x 0.25 = 0.18 x 0.25 = 0.045
November 14, 2015 at 8:49 am
thank you so much looks like my calculator had issues
November 14, 2015 at 8:58 am
May 26, 2015 at 3:26 pm
on example 5 why is the put option more epensive than call option?
May 26, 2015 at 5:44 pm
Because that is was comes out of the equations!!!!
The price of the share in 3 months could obviously be anything. However it is more likely that it will be less than 1.80 than more than 1.80, so the people selling the options will want to charge more for a put option because they are more likely to have to pay out on it.
(and don’t ask me why the price is more likely to be less than 1.80 than more!! That is down to the statistics why is how the derived the formulae, and I have certainly no intention of going through their proof 🙂 )
May 19, 2015 at 8:26 pm
am unable to calculator the figure for e.
I have a scientific one with e and ln.
which key to press for +-
May 19, 2015 at 8:56 pm
Not all scientific calculators are the same – there are two different ways that they work. If yours does not have a +/- button then it uses a different logic, and you will have to look in the instruction book how to do it.
April 13, 2015 at 8:03 am
In Example % while calculating value of call option on the third step u used e raised to power -.04… aint that wrong as time is .25 and r is .1 when we multiply that it comes to .025.. :O
dont know how u came to to .04 :O
waiting for ur reply
April 13, 2015 at 8:04 am
April 13, 2015 at 10:31 am
You are correct – it should be 0.025 (and the final answer should be 4c).
I will re-record the lecture.
April 13, 2015 at 12:47 pm
May 25, 2015 at 5:19 pm
Please leave it like it is, makes us think, not just silly writing all down 🙂
May 25, 2015 at 5:24 pm
Good point Braske77 (and thank you 🙂 )
February 24, 2015 at 3:49 pm
Im gettign lost in example 5 on the calculation of p on the e to the power of -0.04 what is the e value is it 2.7183
February 24, 2015 at 4:05 pm
Yes it is – and you must have a calculator with an ‘e’ button on it 🙂
March 14, 2015 at 6:58 pm
found the e button thanx
February 24, 2015 at 3:47 pm
Please give me an example on how to use the distribution table i got lost in Example 5 on the column 0.09 why that column?
February 24, 2015 at 4:03 pm
I assume you were happy in arriving at the figure of -0.6886 for D1 (the workings are at the end of the lecture notes as well).
We look up 0.69 in the tables (we can only look up for 2 decimal places, so 0.6886 becomes 0.69). So do this you look along the 0.6 row and as you move through the columns it gives the figure for 0.60, 0.61, 0.62 and so on. We want 0.69 and so it is the 0.6 row and the 0.09 column, and the figure from the tables is 0.2549.
Because D1 is negative, we subtract then 0.2549 away from 0.5.
(Had it been positive, as D2 is, then we would add 0.5). This rule is given at the bottom of the tables.
You should be able to follow the rest of the answer at the back of the Lecture Notes.
(How did you manage to sort out the first four examples, but not example 5? :-))
March 14, 2015 at 7:00 pm
i only started practicing exmaple 5 then i got lost. Many thanx for your advice
November 7, 2014 at 2:11 pm
John i have this question. it concerns calculatind d1 if a questions is given n i calculate d1 and a figure say 1.2812 and i then round it to 1.28 and another candidate calculates his and round it to 1.3. these two answers will give different values for N(d1) which will lead to a different value for a call option. will the two of us have all the marks. I am asking because when calculating the figure for natual log of Pa/Pe due to rounding candidates will have different answers
November 7, 2014 at 5:25 pm
Firstly most if not all of the marks are for proving you understand what is happening rather than for the final answer.
Secondly, when rounding you should really round to the number of decimals needed for the tables, so why round to 1.3 when the tables allow you to look up 1.28 🙂
May 28, 2014 at 2:03 am
How can I Have Lectures of Business Valuation
May 28, 2014 at 5:45 am
There are no lectures yet on business valuation.
November 23, 2013 at 7:57 am
How can i download this?or this is only for watching?
November 23, 2013 at 7:59 am
I am sorry, but you can only download the course notes – the lectures can only be watched online.
It is the only way that we can keep this website free of charge.
November 23, 2013 at 8:07 am
Can u provide me solution of paper strategic financial management 3.7 of december 2006 of ACCA………?
November 23, 2013 at 8:11 am
I don’t think that I have it any longer – I will check later.
Do remember that the examiner (and the syllabus) has changed twice since then.
November 23, 2013 at 12:38 pm
November 14, 2013 at 6:57 pm
sir in example you taken t as 0.4 in formula of call option and put option i guess thats a mistake it should be 0.25 right?
i mean example 5.
November 14, 2013 at 8:36 pm
I have watched my lecture again, and it seems that I have taken ‘t’ as 0.25 correctly (it is ‘s’ that is 0.4).
You can of course check the answer at the back of the Course Notes. I think it is correct.
December 1, 2013 at 1:51 pm
Dear John, it seems when calculating ‘-rt’ in example 6 (52,48 minute of the lecture and so on) you’ve multiplied 0,1 (r) by 0,4 instead of 0,25 (t)….
December 1, 2013 at 1:58 pm
Ooops – you are correct.
October 16, 2013 at 4:52 am
September 4, 2013 at 1:04 am
These are very well explained lectures and are a great help. Thank you sir and Open Tuition.
June 1, 2013 at 1:39 am
I have a very basic ques.. But its really confusing me. why the value of option is share price – excercise price?
June 1, 2013 at 4:10 pm
If it was a call option exercisable immediately, then the option gives you the right to buy a share at a fixed price.
So, for example, if the current share price is $4.00 and you could buy an option giving you the right to buy the share at an exercise price of $3.70, then you could buy the share for $3.70 and immediately sell it for $0.30.
Nobody is going to give you that right free! You would be prepared to pay $0.30 for the option. Then you could use it and buy a share for $3.70. You have then spent $4.00 in total and you own a share worth $4.00 🙂
(But of course, that is only if the option were exercisable immediately. In practice the option will be the right to buy a share at a fixed price on a future date, and to get the value of that we need to use all the formulae.)
May 31, 2013 at 8:35 pm
May 31, 2013 at 8:34 pm
John you are God sent! what will we do without you and opentuition?!
Thank you so much for teaching me how to get more value using a scientific calculator!
May 31, 2013 at 8:31 pm
This is invaluable! I have a scientific calculator and i had no idea how all this buttons worked ln and e* now you have educated me on the standard normal distribution table! whew u saved me a head ache. for a while there when i saw the formulae i imagened it must be some enginering formulae forgotten on P4 paper by error!
It means this paper should have more calculations and less writing , how then are we expected to mix the two?! I mean just one question on options is enough to give one a head ache. God have mercy on us!
But Thank God for Opentuition iam confident iam finalising and passing this June 2013 exams. Watch this space i will update u all. John you are our guardian angel!
May 9, 2013 at 10:26 pm
Example 4. When the lecturer was doing the call option formula, he made a mistake and put t=.4 when it should be .25… so answer is actually 4cents and not 5cents…. whew
March 21, 2013 at 9:28 pm
Thank you very much for an invaluable lecture! You are brilliant, concise and straight to the point! Really appreciate the assistance.
May 13, 2013 at 12:06 am
January 26, 2013 at 1:04 pm
You do help clarify all these complicated issues.
Thank you for all ur effort.
Benefit a lot
October 14, 2012 at 1:19 am
please verify that on the last question,the “T” you used is annual and not adjusted for 3 months as it should be 0.25 and not 0.4.
October 14, 2012 at 1:55 pm
@dladla, You are correct – sorry. I used the correct T for calculating d1 and d2, but then made a mistake in the equation for c.
You can see the correct answer at the back of the Course Notes.
October 3, 2012 at 6:15 pm
September 3, 2012 at 1:07 pm
I have failed to view the lectures.
they are not running. Please help
September 3, 2012 at 5:51 pm
Try another browser
June 2, 2012 at 6:44 am
thanks, i know how to use the formulaes ald…
May 31, 2012 at 6:32 am
May 20, 2012 at 3:53 pm
Wonderful lecture. I picked up a great deal! Keep it up
April 13, 2012 at 2:49 am
great explanation here!
February 20, 2012 at 9:50 am
Isn’t it possible to incorporate video speed controls within the player? It would really help since some may never have enough time to watch at the normal speed. I would request you to consider takling to the company providing the streaming and update if possible.
October 20, 2011 at 2:58 pm
pls fix the techinal problem of this lecture i am reling on it its not running after 15 mins.
October 20, 2011 at 2:54 pm
the lecture is not running after 15 mins
May 27, 2011 at 8:59 am
my calculator isgivig wrong answer on the In(pa/pe) maybe im getting it wrong. whos is there to help me???
May 22, 2011 at 1:45 am
thanks a lot…i didnt look at the answer in the notes just checked my answer against the video 😀 thanks a lot
May 21, 2011 at 5:11 pm
Thanks for your comments.
You are correct that it is e^-0.025, but that is what is in the answer to example 5 in the notes. I think the answer is correct.
May 21, 2011 at 2:26 pm
Also, thanks everything for putting these valuable lectures online, is even better and more thorough than Kaplan!! 😀
May 21, 2011 at 2:24 pm
i think the example 5 is wrong when working the call & put option, my e^-rt is actually e^-0.1*0.25; i.e. e^-0.025 or have i missed something? thanks
April 25, 2012 at 9:48 am
It seems the tutor made an error in the lecture (example 5 around 53:01) where he says the ‘t’ in e^-rt is 0.4 instead of 0.25 (3months).
But if you look at page 144 in the OT notes, the answer to example 5 in chapter 13 (share options and option pricing) shows the correct figure, t = 0.25.
Brilliant lecture, I’ve picked up a lot more from here than I did in class! Thank you!
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