Rebalancing frequency, Implied Volatility & Rho. Dynamic Delta Hedging Applications.

Now that we have a Delta Hedging Model for Calls and Puts let’s try and use it to answer the following questions:

a) What is the impact of rebalancing frequency on hedging profitability?

b) What is the impact of a rise in volatility on profitability? How does implied volatility help in interpreting this change?

c) What is the impact of changes in risk free rates on profitability?

d) How does the interaction of time to expiry and volatility changes profitability?

These are all questions that should occur naturally to you as you spend more time with the Delta Hedging model. They are also essential to building a deeper understanding of the concept of implied volatility, Rho & Theta.

Dynamic Delta Hedging Questions: Assumptions & Securities

Let’s take a look at these questions one by one. We will begin work with a call option assuming the following valuation parameters:

Figure 1 Dynamic Delta Hedging – P&L review assumptions

The theoretical value of the call option is 3.01 based on the above assumptions. The resulting Cash Accounting P&L for a single run of the Dynamic Delta Hedging model is as under:

Figure 2 Dynamic Delta Hedging – P&L Review – Base case

Rebalancing frequency & efficiency of the hedge. Implications for profitability?

A good hedge is one where the cost of the hedge is close to the theoretical value of the option. In our cash accounting P&L we have included the theoretical premium received which is used in determining the initial amount to be borrowed. Hence for a hedge to be considered good or efficient the Net P&L should be close to this premium amount.

To see if increasing the frequency led to better results, we increase the time steps used from 12 steps to 365 steps. The graph below plots the Net P&L to Theoretical Value across 100 simulated runs. A value close to 100% means that it is a close match to the premium whereas a value farther away for 100% indicates a poor match.

Figure 3 Dynamic Delta Hedging – P&L Simulation – Rebalancing frequency

We can clearly see that there is much greater variation when the rebalancing is done on a monthly basis than when it is carried out on a daily basis.

The graph below gives a similar picture. In this case however, the premium is not considered when determining the amount to be borrowed at option inception, i.e. the hedge is fully funded through borrowing. A value of -100% indicates that the Net P&L i.e. the cost of the hedge, in this case exactly matches the theoretical value of the call option.

Figure 4 Dynamic Delta Hedging – P&L Simulation – Hedge Effectiveness

But that is the risk manager’s point of view. What about a trader’s point of view?

From a trading point of view there are two lessons here. First the large variation in P&L linked to jump’s in the underlying price is the un-hedged Gamma at work (Is that true? Think about it). Second would you prefer to limit the cost of hedging the option to the amount you have charged your customer or less? If you are in the business of earning a living from writing options, the premium you charge on the options you sell should always be higher than your cost; your cost of effectively hedging the option.

Now back to the Gamma question. Gamma is your second order error term. Conceptually it’s similar to convexity and linked to changes in not just the underlying price but also volatility. Is your true P&L (the premium received less the actual cost of hedging) is the summation of the hedge error?

Volatility and profitability. The question of implied volatility

With volatility there are multiple questions. How does profitability change when the general environment moves from low volatility to high volatility? How does profitability change when you have already written an option and volatility moves for or against you?

Let’s start from the first question. Using the 12-step model we calculate the impact on Net P&L. In our base case we have assumed a volatility of 20%. Let us now assume that the volatility increases to 40%. What is the impact on hedge efficiency for options written in the two different environment?

Figure 5 Volatility & Profitability – Low volatility world

Figure 6 Volatility & Profitability – High Volatility world

So premiums are clearly higher and so is profitability in absolute terms. But is that true in the relative world? Let’s take a quick look by plotting the Net P&L to Theoretical Value across 100 simulated runs. In relative terms (as a % of premiums) there is not much difference. Why is that? Is this a result you expected?

Figure 7 Dynamic Delta Hedging – P&L Simulation – Volatility Impact

To answer these questions you have to revisit implied volatility. Let’s use the same scenario as above but with a minor change. We wrote options and received premiums assuming an implied volatility of 30%. The actual realized volatility over the life of the option was 20%. How did that change our resulting simulated P&L.

Figure 8 Implied volatility at work – Hedge Profitability

You can now see a clear difference in absolute as well as relative terms in net P&L. And the difference arises on account of the spread between the premium charged ($8.13) versus the premium needed ($3.01).

(To run this exercise using the Delta Hedge Sheet, simply calculate the value of the premium at the implied volatility level you want to charge and replace the original premium in the simulation with this value).

Risk free rates & profitability. The question of Rho.

We present the results of three P&L simulations runs in the tables below. The first assumes a risk free interest rate of 1%, the 2nd uses 2% and the third uses a risk free interest rate estimate of 5%.

The first two are easy, rates go up, premiums goes up and a European Call option becomes more expensive. Why is that?

Figure 9 Dynamic Delta Hedging profitability – P&L at 1% interest rates

The reason is the average interest paid column. The premium goes up by 28 cents of which 21 cents is the increased cost of financing the borrowed position. Where does the other 7 cents comes from? (Need a hint – Other than the borrowing component who else benefits or uses r, the risk free rate?)

Figure 10 Dynamic Delta Hedging profitability – P&L at 2% interest rate

The second one is more difficult. In this instance as rates increase to 5% from the original 1%, the cost of borrowing balloons to $1.95 from the original $0.30 but the impact in option premium is only $1.244. How does this work? (Hint, think about what other driver/factor in the Black Scholes Analysis uses r?)

Figure 11 Dynamic Delta Hedging profitability – P&L at 5% interest rates

In addition to borrowing the difference between premium received and Delta hedge, the other usage of the risk free rate, r, is in estimating the future value of the underlying asset in the BSM (Black Scholes Model’s) risk neutral world. This implies that there are other components of Rho, in addition to the borrowing cost. That you need to examine and be comfortable with.

Understanding Greeks & Delta Hedging

Related posts:

  1. Understanding Delta Hedging for options using Monte Carlo Simulation
  2. Dynamic Delta Hedging – Calculating Cash PnL (Profit & Loss) for a Call Option writer
  3. Dynamic Delta Hedging – Extending the Monte Carlo simulation model to Put contracts

Hedging Higher Order Greeks – Hedging Gamma & Vega using Microsoft Excel

In earlier posts we have set the foundation for hedging in practice. We did this by calculating Option Price Sensitivities (Greeks) and Delta hedging for European Call as well as Put Options.

Why would you want to hedge Gamma?

Figure 1 Options Greeks – Delta and Moneyness – Hedging higher order Greeks

If you leave it un-hedged you are exposed to the risk of large moves, especially when the option is at or near money. When you are deep out or deep in, Delta is flat and asymptotic as shown above. But when are you not, a large move can result in significant trading loss despite being Delta hedged. As long as prices move in small increments and do not jump dramatically, Delta hedge will cover you. The underlying jumps, you are exposed.

We have seen this at work earlier with duration and convexity with similar implications. Delta is the first order rate of change and works well within a narrow band. Within and outside that band Gamma tracks not just the error but also the magnitude of your gain/loss in case of a large move (up/down). The magnitude of the error shifts dramatically as the option gets closer to the At/Near money state. When options are deep in or deep out, similar to Delta, Gamma also flattens out. However given the convex nature of the 2nd derivative in this case, the impact of a large up move or a large down move is not symmetric.

Figure 2 Option Greeks – Gamma & Moneyness – Hedging Higher order Greeks

But you can’t hedge higher order Greeks (Gamma) by buying or selling the underlying. Why not?

First the 2nd derivative of a spot/forward/linear position is zero so hedging Gamma through the underlying is out. The second complexity arises with Vega. We really don’t know what shape or form realized volatility will take in the future. How can we effectively hedge it?

Then there is the issue of term structure of volatility. Implied volatility changes based on time to maturity (term structure) as well as money-ness (deep in, deep out, At/Near – strike price) so taking a simple constant volatility view across all options irrespective of maturity or money-ness would actually be in-accurate.

Figure 3 Option Greeks – Vega & Moneyness – Hedging higher order Greeks

The third catch is that both Gamma and Vega use exactly the same calculation function for Calls and Puts (Gamma for a call and put has the same value, Vega for a call and a put has the same value). Which creates interesting implications for hedging a book of options with calls and puts. You may be perfectly hedged and squared with respect to your Gamma and Vega exposures but the wrong universe/direction of hedging choices can still wipe you out.

We hedge Gamma and Vega by buying other options (specifically cheaper out of money options) with similar maturities. Like Delta hedging we need to rebalance but the rebalance frequency is less frequent than Delta hedging. Your final hedge is therefore a mix of exposure to the underlying (partial delta hedge) and cheaper options with similar maturities.

The only question is that it’s a large universe of options out there, how do we manage multiple constraints including premium & sensitivities across products, maturities (tenors), Delta, Gamma & Vega. The answer is constraint optimization through Excel solver. In our next post we will show how to build a simple Excel solver model that takes a universe of four options and uses it to match the required Delta, Gamma, Vega profile for a single option.

Before we jump to the next post, please review the following background posts on Option Greeks & Delta Hedging to ensure that you are comfortable with the calculation of Delta, Gamma & Vega as well the implementation of Delta Hedging in Excel.

Understanding Option Greeks – Relevant Sales & Trading Interview Guides posts

Understanding Greeks – Introduction

Understanding Greeks – Analyzing Delta & Gamma

Understanding Greeks – The Guide to delta hedging using Monte Carlo Simulation

Understanding Greeks – Quick Reference Guide to Delta, Gamma, Vega, Theta & Rho

Related posts:

  1. Option Greeks – Delta, Gamma, Vega, Theta & Rho. A quick reference guide
  2. Sales & Trading Technical Interviews – Greeks behaving badly – Put Options
  3. The Sales and Trading Interview Guide Series – Understanding Greeks and Delta Hedging – Coming soon to an iPad near you…

Understanding Option Price Sensitivities – European Put Options – Sales & Trading Technical Interview Guides

As part of our Sales & Trading technical interview guide series we have done a number of posts on Greeks, Delta hedging and estimation of Delta hedging Profit & Loss.

A recent client/student/interview request indicated a preference/need for a sheet dedicated to European Put Options Greek plots. Hence the Greeks Put Option suspects’ gallery. While some of these are making a second appearance, we think a Put only collection is indeed useful given our focus on European Call options.

The Analysis framework used for dissecting put option Greeks is simple. We break the contracts down by “money-ness”. The three categories are Deep In, At/Near, Deep Out of money options.

And the five option pricing variables – Spot, Strike, Vol, Interest Rates & Time. This analytical combination produces interesting results.

The options for which Greeks have been plotted below assume a volatility of 20%, a risk free rate of 5% and a time to maturity of 1 year. In addition Spot and Strike prices are:

Deep In

Spot = 50

Strike = 100

 

At/Near

Spot = 50

Strike = 100

 

Deep Out

Spot = 50

Strike = 100

 

Greeks Against Spot – European Put Options

European Put Options – Deep In the money Options

European Put Options – At/Near Money Options

European Put Options – Deep Out of money Options

 

Greeks Against Spot – European Put Options

European Put Options – Deep In the money Options

European Put Options – At/Near money Options

European Put Options – Deep out of money Options

European Put Option Greeks – Against Volatility

European Put Options – At/In money Options

European Put Options – Against Changing Interest Rates

European Put Options – At/Near money Options

European Put Options – Against Changing Time to Maturity

European Put Options – At/Near money Options

Understanding Option Greeks – Relevant Sales & Trading Interview Guides prior posts

Understanding Greeks – Introduction

Understanding Greeks – Analyzing Delta & Gamma

Understanding Greeks – The Guide to delta hedging using Monte Carlo Simulation

Understanding Greeks – Quick Reference Guide to Delta, Gamma, Vega, Theta & Rho

Related posts:

  1. Sales & Trading Interview Guide – The understanding Greeks resource
  2. Sales & Trading Technical Interviews Preparation
  3. Sales & Trading Interview Guide: Understanding Greeks: Option Delta and Gamma

If you have been playing the odds game mentally for the US Presidential election and want a resource to take a bet on your view on the likely winner on 6th November 2012, here is an interesting resource.

The Intra-Trade US Presidential Election Prediction ticker. The 10 dollar par value share predicting a US Presidential election win for President Obama is now trading at $6.6 and change. Governor Romney is down at $3.3 per share. Pre-Sandy the range was $6.2 for President Obama and $3.7 for Governor Romney. If you buy now and the man from Chicago wins, your share will settle at $10 par, netting you a cool 50% return in 4 days.

Any takers?

Take a quick look at the Campaign roundup by John Avlon at the Daily Beast before you take your position. John is predicting a close race but with the incumbent as the likely winner, based on early voting trends in Ohio where the spread between the two candidates is 26 points rather than the neck to neck finish Gallup is forecasting.

A big thanks to Rakesh Gopchandhani for sharing it.

Ps. For the Sharia compliant crowd, this is not an investment, it is a bet.

Related posts:

  1. The Pitching for Startup Course – A guide to presenting winning pitches for your business plans
  2. The lighter side of Finance – Beware of the June selection
  3. The Funnies – October 2012 Edition

Dynamic Delta Hedging – Calculating Cash PnL (P&L) for a European Call Option

Figure 1 Delta Hedge P&L – Trading losses on account of rebalancing

We extend the original Dynamic Delta Hedging Monte Carlo Simulation spread sheet in this note. The dynamic hedging spreadsheet for a European call option allowed us to do a step by step trace of a delta hedging simulation. In this sheet we will use the results from the simulation trace to calculate a cash accounting P&L for our hedging model assuming the role of a call option writer and then extend the original simulation to see the average PnL across 100 iterations.

The above calculation has a double count in it? Which directly impacts the final profitability figure? Can you see it? See the discussion below for an answer.

We are assuming that we have written a European call option on Barclays Bank where the current spot price is $162.3 and the strike price is US$200. Time to expiry is one year and Barclays Bank is unlikely to pay a dividend during the life of the option.

Figure 2 Delta Hedge P&L – Cash P&L for the writer for a call option that expires in the money

Understanding Delta Hedging Cash PnL Calculation – Required resources

Before you proceed further if you are still uncomfortable with option price sensitivities or delta hedging please use the following background and model review posts to make yourself comfortable with the underlying concepts.

  1. Understanding option Greeks reference resource for dummies
  2. Understanding Greeks – Analyzing Delta & Gamma
  3. Understanding Greeks – The Guide to delta hedging using Monte Carlo Simulation
  4. Understanding Greeks – The Delta Hedging Simulation extended for Put Options

Delta Hedging Cash PnL Calculations – Dissecting the PnL Model

Our model uses a simplified cash based approach to calculate PnL from our Delta Hedging model. Our objective is to calculate PnL at option expiry for the option writer. Primary contributors to the model include:

Figure 3 Delta Hedge – Cash P&L for the writer for an option that expires out of money

a) Cash in – receipts from the customer. Include premium received and the strike price if the option is exercised. If the option expires worthless we only receive the premium.

b) Cash out. As explained earlier to finance our hedge purchases we borrow money. We pay interest on this principal for the life of the hedge and return the principal at maturity.

c) Trading losses. As part of our strategy we purchase the underlying as prices rise and sell it when they fall. Be definition this strategy will generate trading losses irrespective of whether the option expires worthless or in the money. Because we re-balance on a frequent basis, trading losses also consume cash. However the question that often confuses audiences is one of double count. Should trading losses be included as a separate accounting item or are they already included in the Cash before trading losses calculation? Think about this before you proceed further. It will directly impact your analysis and result. Here is a hint – other than the cash treatment that we have used, is there any other possible use or source of cash in the analysis and the calculation above?

When we put the model in place our final output should look something like this:

Figure 4 Delta Hedge P&L Simulation results – Gross P&L, Net P&L, Trading Losses

You can clearly see that the biggest contributor to our cash PnL uncertainty is trading loss. Is this treatment correct?

We will take a more closer look at this contributor later in our note.

Extending the Delta Hedge Model for Cash PnL Calculation – Interest paid & principal borrowed for the Hedge

The first step is to add two new columns to our Delta hedge model. These are:

  1. Interest paid per period, and
  2. Incremental amount borrowed per period

Both elements have been calculated as part of the original sheet and all we need to do is simply extract the relevant piece and dump the results in two new columns at the end.

Figure 5 Delta Hedging PnL – Two new columns – Interest paid & Marginal borrowing

Incremental amount borrowed is included in the total borrowing figure we had calculated earlier in the Guide to delta hedging using Monte Carlo Simulation
post. It is simply the difference between the two deltas for the two time periods multiplied by the new price of the underlying stock.

Figure 6 Delta Hedging PnL – Calculating Incremental borrowing

Interest paid per period is the interest accrued on the balance of the previous period. Which ends up as outstanding balance times the interest accrual factor (exp(risk_free_rate x Delta_T)) in the sheet.

Figure 7 Delta hedging PnL – Calculating Interest paid on borrowed cash

Delta Hedging PnL – Calculating the trading loss on account of selling low

The basic hedging strategy is to buy when delta (or price) goes up and sell when delta (or price) goes down. Buy when prices rise, sell when they decline. The result is that as the underlying price see-saws, we end up buying high and selling low, rebalancing the portfolio in alignment with delta but also generating trading losses.

Our calculation of trading losses has three components.

a) First calculate the number of incremental units purchased or sold as part of the required rebalancing. (Unit purchased column)

b) Then calculate the difference in price between the two rebalancing periods. (Difference in price column)

c) Finally identify all trades where a sale was made and calculate the trading gain or loss. (Loss on Sale column)

For this specific simulation the trading loss is calculated as $2.5 based on the above approach.

Figure 8 Delta Hedge simlation – trading loss calculation

Delta Hedge PnL Calculation – Putting it all together

Now that we have all of the required PnL components together we hook them up with our Excel Data Table. We use our Monte Carlo bag of tricks to store the results of 100 iterations. Stored components include Gross PnL (excluding trading losses), Net PnL (including trading losses), Interest Paid & Trading loss on rebalancing sales.

But there is a trick question here. Its the question that has always stumped students (and quite frequently me).  Here is the question. Is the correct P&L the Gross P&L or the Net P&L figure below? The net P&L subtracts the trading loss from the gross figure. Is that a double count? How would you explain and justify the answer? Is there a one word answer?

Think about these questions as you work through the numbers in the table below. We will do a post answering the double count question later.  In the interim period here is a hint. Try a fully funded (zero premium) strategy once you have built the sheet and see what happens to your P&L calculation.

Figure 9 Delta Hedge PnL – Storing the results

(If this doesn’t make sense, take a quick look at our Monte Carlo Simulation refresher below.)

The final result is our Delta Hedge PnL graph for a European Call Option.

Figure 10 Dynamic Delta hedge PnL Calculation – PnL Graph

Delta hedging PnL – Next steps and Questions

Once you have the basic model figured out here are some interesting questions that follow:

a) How would you extend this model for PnL calculations for a European Put Option?

b) How would you incorporate the impact of implied volatility?

c) Of transaction costs? And non-risk free interest rates? Jumps and Dividends?

d) How would profitability (cash PnL) change if you shortened the time step and the rebalancing period? Or extended it?

e) What does the distribution of profits suggests about the risk inherent in the underlying business?

f) Is this the most effective way of hedging options?

g) What about the risk embedded in other Greeks? How is that managed and hedged? How does that impact PnL?

 

Understanding Greeks & Delta Hedging

Related posts:

  1. Dynamic Delta Hedging – Extending the Monte Carlo simulation model to Put contracts
  2. Understanding Delta Hedging for options using Monte Carlo Simulation
  3. The Sales and Trading Interview Guide Series – Understanding Greeks and Delta Hedging – Coming soon to an iPad near you…

Long billed Hoopoe or a crowned woodpecker?

A well rounded education in Finance includes an awareness of the environment around you.

This long billed bird has been prospecting in our office lawn for the last few months.  Armed with our Kite catching camera, we took a few sneak shots early this afternoon. The only question is that are we looking at  a long billed Hoopoe (probably) or a strange woodpecker (unlikely)?.  Lacking expertise in the accurate classification of this species, we thought it would be appropriate to simply post the question here and hope for the best.  Hope that some where in the audience there is a Quant who has been watching birds more closely than his Excel spreadsheets.

Long billed Hoopoe or a Woodpecker? You decide. (Need some help, check out the Woodpecker classification resource)

 

 

 

 

 

 

 

 

Side profile.

In action after a digging attempt is successful.

 

 

 

 

 

 

 

 

 

 

A full view of the crown on top from back

 

 

 

 

 

 

 

 

 

 

Getting ready to dig.

No related posts.

Dynamic Delta Hedging – Monte Carlo Simulation in Excel for hedging European put contracts

In our previous post on Dynamic Delta Hedging for European Call Options we built a simple simulation in model in Excel that simulated an underlying price series and a step by step trace of a Dynamic Delta Hedging simulation for a call option.

In this post we will modify and extend the model for European Put options. The basic approach remains the same but a simple modification is required to make the sheet work for European Put contracts.

Figure 1 Delta Hedging – Put Options – Monte Carlo Simulation

The end result would be a dynamic simulation graphical output showing the original option value and the replicating portfolio that is created to hedge it.

If you remember, our Dynamic Delta Hedging strategy for Call Options relied on going long (buying) Delta x S and financing this purchase by borrowing the difference between our purchase and the premium received for writing the option. This strategy defined the structure of our Monte Carlo Simulation spread sheet in Excel.

Figure 2 Delta Hedging – The baseline model and simulated values

Delta Hedge – Put Options – Tweaking the original Monte Carlo Simulation model

How would you change this model for hedging a European put contract?

In a call option the probability of exercise goes up as the underlying price goes up. For a put option the opposite is true. For a call option as the probability of exercise goes up, we buy portions of the underlying to hedge our exposure and manage our dollar cost average purchase price.

For a put option therefore we short more of the underlying as probability of exercise goes up ( the probability is N(d2) for a Call, N(-d2) for a Put) and vice versa when the probability goes down.

For a call because we are short cash we borrow it to finance our purchases. For a put option the short sale of the underlying generates cash and we invest the proceeds for the duration that we remain short.

Therefore the structure of our dynamic delta hedging sheet for a European put contract changes and becomes:

Figure 3 Dynamic Delta Hedging – Baseline model for European put options

The only difference are:

a) In the replicating portfolio: Where we are now short Delta x S and have lent the proceeds from the short sale

b) Option Delta calculation where we are using N(d1) – 1 rather than N(d1) as the option delta for a put option.

As per our earlier model we still need to simulate:

a) The underlying stock price

b) Option Delta for a put option linked to the underlying stock price

c) Replicating portfolio comprised of a short position in Delta x S (Spot price of stock) and a long position in Borrowing B.

d) Difference between the replicating portfolio and the option value to calculate tracking error.

Figure 4 Delta Hedging – Put Options – Tracking Error

If you are unfamiliar Monte Carlo Simulation please see the Monte Caro Simulation Training Guide below as well as our posts on Monte Carlo simulation before proceeding further.

We use Barclays Bank and assume that the bank will pay no dividends over the life of the option.

Delta Hedging Model using Monte Carlo Simulations – Assumptions

Figure 5 Dynamic Delta Hedging – Barclays bank price chart

Delta Hedge – Put Contract – Simulating the underlying using Monte Carlo Simulation

We will assume that the spot price is 162.3, the strike price 150, the daily volatility will range between 2.5% to 5%. Implied annualized volatility will be assumed to be 40%. Risk free rate of interest will be 1%, time to maturity will be one year. As discussed above, the stock will pay no dividends.

Figure 6 Delta Hedging – Key Assumptions

Using the above assumptions simulate a path of Barclays share price over the next one year. For each value of the underlying stock price we also calculate d1 using the standard Black Scholes European option pricing.

Figure 7 Delta Hedging – Put Option – Simulating the underlying

The actual stock price simulation with the original discrete formula and the Excel implementation is shown below and is the same as the approach used earlier for Delta Hedging. The only difference is that our Delta Hedging sheet worked with a 12 step forecast. For put options we are using a 24 step simulation.

Figure 8 Delta Hedging – Simulating the underlying

Armed with d1 we can now calculate option delta as well as the value of the replicating portfolio (Short Delta x S + Total lending).

Figure 9 Delta Hedging – Put Option – Completing the Picture

Delta Hedge – Put Contract – Calculating the amount lent for each time step

The dollars shorted calculation is simple (Delta x S), it is the total lending calculation that requires some attention.

Figure 10 Delta Hedging – Put Option – Calculating Amount lent

The calculation at time step one is simple. We receive $18.44 in premium. Our short position generates $54.79 in cash. The total cash available is 73.22. We immediately lend it at the risk free rate. But what happens at step two in the image above. Price jump to $187.08 and our delta falls to -21.6% from -33.8%. Our short position declines from $54.79 to $40.49. Where does the approximately $14 change comes from?

The original balance at time 1 has grown at the risk free rate for the time step in question (one time step). However the incremental change in stock is given by the change in Delta (G30 – G29) times the new underlying stock price. The way the formula is structured is such that it will release cash when the stock price rises (Put Delta gets less negative) and consume cash when prices decline (Put Delta get more negative).

Put Option – Delta Hedging – Putting the rest of the sheet together

The rest is exactly the same as before. The replicating portfolio is given by (-Delta x S + Amount lent). The option value is calculated by the standard Black Scholes Put Option premium calculation.

Figure 11 Delta Hedging – Put Option – Total Spreadsheet view

Related posts:

  1. Understanding Delta Hedging for options using Monte Carlo Simulation
  2. The Sales and Trading Interview Guide Series – Understanding Greeks and Delta Hedging – Coming soon to an iPad near you…
  3. Seven new risk and investment management case studies – Free Step by step guides to VaR, ALM, Greeks & Monte Carlo Simulation ..

 

 

Join our subscription list on Face Book and enter your email address in a draw to win selected copies of Risk Frameworks and Applications.

 

 

 

 

 

 

 

 

Related posts:

  1. A risk applications textbook with a difference: Risk Frameworks, 2nd Edition is here
  2. Risk Frameworks and applications
  3. Risk Frameworks & Applications – 2nd Edition – The text book for Risk, Treasury & Derivative pricing courses.

That’s it. Can no longer call these Finance funnies. Our selection for the last few months and the next few months will remain distincly political as the world focuses on the upcoming US election. And apparrently so does the creative talent in our time zones. Atleast the theme in this months selection touches foreign policy and gender inquality issues.

An interesting side comment:  If cartoons and the funny pages were anything to go by, President Obama has won the election and Mitt is toast. It was the other way round in April, May, June, July  & August when the Democrats campaign was just bleeding all over the funny pages. Not so in October 2012, two weeks before the ballot.  You can clearly see a distinct shift towards the man from Chicago. Just check the earlier Finance Funnies posts for May, June, July, Aug & September  in the related post sections at the end of this post.

We will find out mid November. Till then, enjoy.

 

 

Related posts:

  1. Finance Funnies – Missing July 2012 episode – Finance, Recovery, Unemployment and November Elections.
  2. Finance Funnies – Welcome to August 2012
  3. Finance Funnies – The September 2012 issue

Understanding Treasury Risk Management

Treasury Risk Training Online Resources

Treasury Risk Training

The Treasury Risk Training Course

Two new online & free course reference sites are now up at the following links

The Advance Treasury Risk Management Course Page

The Introduction to Risk Management Course Page

Sample Exam – Treasury Risk Management – Past Final Exam

The two treasury risk training courses were taught as sequential courses to SP Jain GMBA students in Dubai in summer 2012 over two weeks as part of the Financial Risk Management elective series. The Advance course focused on Excel model building using Treasury risk training themes covered earlier in the introductory course.  The introductory course used foundation building materials from Value at Risk, ALM and Treasury Risk Management.

The objective was to mix and match treasury risk management frameworks, case studies and hands on risk model building exercises in Excel. The final exam (see practice past examination question above) focused on a real life treasury risk case study from the Margin Risk Management world. Where ever possible we used real treasury risk management case studies and data to ensure students developed a strong sense of what it takes to actually implemented treasury risk management models in practice.

Course content covers topics from the following core risk management themes:

  1. Introduction to Treasury Risk Management
  2. Introduction to Value at Risk – Framework and case studies
  3. Introduction to Delta and Higher Order Hedging for an Options Book
  4. Asset Liability Management – Framework and case studies
  5. Probability of Default models using Merton’s structured approach for FI Analysis
  6. Capital Adequacy & Bank Regulation

Suggested training course instruction time is 36 hours spread over 12 days of classes with 3 hours per day. The outline and the course material require a heavy reading and in class modeling load and are not recommended for the light hearted.

While the first three themes in the course focused on Treasury Risk Management, the last 3 balanced the course material out by introducing credit risk (probability of default models for FI and counter party limit setting), Asset Liability Management (ALM) and Capital Adequacy analysis.

If you would like us to run either of the two course as an in-house workshop at your bank or treasury risk unit please drop me a line at jawwad at the rate alchemya dot com.