What Are Exotic Options? - YouTube

Channel: Patrick Boyle

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Hello, and welcome back to my Youtube channel where we learn all about derivatives and quantitative
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finance.
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Today we will learn about exotic options, things like compound options, chooser options,
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gap options, barrier options lookback options, quantos and many more.
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[MUSIC]
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In todays class we are going to learn all about exotic options, so I guess the first
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thing I should do is explain what an exotic option is.
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Simple put and call options or combinations of them are called “vanilla” or plain
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vanilla options.
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These have standard properties and trade actively.
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The alternatives to these are referred to as “exotic” options.
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Typically these are over the counter derivatives and have various nonstandard features.
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Exotics serve market niches including: specific hedging needs; tax, accounting, legal, or
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regulatory needs; or offer investors unique payoffs in particular market circumstances
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that are not easily accessible to Investors were these products not available.
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Nonstandard features include: a hybrid of American- or European-style exercise capabilities;
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alternative payoffs or payoffs that do not depend precisely on one strike price; fixed
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payout options above a specified strike price; or those with a payoff based on the average
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performance of the underlying over the option’s life.
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If you would like to learn more about this topic, or derivatives in general, all of these
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classes are based on my book, trading and pricing financial derivatives.
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There is a link to the book provided in the description below.
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Bermudan Options Bermudan options are a cross between American-
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and European-style options.
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They are named Bermudan options because Bermuda is physically between the U.S. and Europe.
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These options can be exercised on certain dates during the life of the option, often
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monthly.
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Bermudan options offer the sellers more control over when an option can be exercised against
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them, and therefore the contract is less expensive for the buyer than an American-style option,
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but not as inexpensive as a European option (which only allows exercise at expiration).
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These options can be priced using Binomial Trees where at particular nodes early exercise
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is a possibility, and at other nodes it is not.
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Forward Start Option Forward start options are options that start
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at some point in the future; the exercise price is typically set at the current price
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at the beginning of the option’s life.
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Employee stock options are an example of a forward start option.
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The other main purpose of trading them is to gain an exposure to forward volatility.
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Forward start options can be valued with a modified version of the Black-Scholes model
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Compound Options Compound options are options on options: A
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call that enables you to buy another call, a put on a call, a call on a put, or a put
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on a put.
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The underlying asset of the first option is simply another option.
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Compound options allow buyers to effectively implement their strategy with greater leverage
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than one simple direct options position, and are cheaper at inception than a straight options
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position for the full timeframe.
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However because you make a second payment when you exercise the first option, the full
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amount of premiums paid on the two options will be greater than the premium on one option
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for the entire duration.
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Chooser Options Chooser options allow the buyer, after a specified
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time, to choose if the option is a call or a put.
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This is particularly attractive if the underlying is expected to experience significant volatility,
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and potentially in either direction.
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This is riskier than a straddle strategy.
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With a chooser option, you might choose the call after it has rallied, but by the time
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expiry is approaching, the underlying may have fallen and you may end the contract out
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of the money, whereas with a straddle, you have a “live” put and a “live” call
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right up until maturity.
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For this reason, chooser options are cheaper than straddles.
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Barrier Options Barrier option payoffs depend on whether the
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underlying hits a certain level, whichh we call the barrier, before the expiration date.
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These options can either knock-in or knock-out.
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A knock-in option has no intrinsic value until the underlying touches the barrier price,
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at which point it becomes a vanilla option.
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A knock-out option is like a vanilla option but if the underlying exceeds the barrier
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price, it becomes worthless.
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There are eight types of barrier options: they can be up and out, or down and out calls
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or puts; or they can be down and in or up and in puts or calls.
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Barrier options are path-dependent options because their value depends on the previous
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prices of the underlying during the life of the option.
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Barrier options are always cheaper than an otherwise similar option without a barrier.
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As an example, if you were bullish on Facebook’s stock over the next 1 year timeframe, but
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were confident that it would not exceed $250 per share over that period, you might be happy
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to buy a one year up and out call option with a strike around the current price ($150 at
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the time of writing this book) but a knock-out barrier at $250.
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Hopefully you can see how this has some similarity to something like a call spread, but this
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payoff is considerably worse [AD LIB] The Greeks on barrier options behave quite
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differently than those of vanilla options.
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If you compare an up-and-out call option with a vanilla call option.
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As the stock price moves up, a vanilla call will increase in value, while an up-and-out
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call is affected by two opposing forces.
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As the stock price moves up, the up-and-out call's payoff becomes potentially larger just
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like the vanilla call, but the upward move simultaneously threatens to destroy the value
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of the contract by moving it closer to the knock out barrier.
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This conflict makes the option value very sensitive to the stock's movement as it gets
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close to the barrier, and delta can flip rapidly from positive to negative at these points
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making these options very difficult to hedge.
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Barrier option values can decrease with increasing volatility, unlike vanilla calls and puts.
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The up-and-out call described above becomes more likely to get knocked out near the barrier
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as volatility increases.
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Even though the Investor is long volatility relative to the strike level, they are short
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volatility relative to the barrier.
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Binary Options, also Known as Digital Options Binary options are discontinuous payoff options.
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An example would be a payoff of X if ST>K, otherwise 0.
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So the owner of a binary call option would receive either a 0 payoff or a full, set payoff
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amount if the underlying’s price is above a pre-set level K, but the payoff does not
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rise if the underlying is well above the strike K, instead it is a fixed payoff of X (see
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Figure 14.3).
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These are difficult for dealers to hedge well, particularly when the underlying trades close
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to the strike near maturity.
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Gap Option A gap option is a type of barrier option where
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the strike making the option exercisable differs from the strike used to calculate the payoff.
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Gap call options payoff ST–K1 when ST is greater than K2.
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A modified Black-Scholes formula can be used to price this style of option.
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Lookback Options Lookback option payoffs depend on maximums
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or minimums of underlying asset price points over the option’s life.
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These are path-dependent options that allow the option owners to “buy at the low”
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or “sell at the high” over the life of the option.
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The life of the option being from the contract first being agreed upon through to the expiration
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date.
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There are two types of lookback options: floating-strike and fixed-strike.
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For floating-strike lookback calls, the exercise price is the minimum stock price reached over
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the life of the option.
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For floating-strike lookback puts, the exercise price is the maximum stock price reached over
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the life of the option.
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For fixed-strike options, the strike is fixed as with a vanilla option but, for fixed-strike
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lookback calls the owner gets to exercise at the point when the underlying asset price
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is at its highest level over the life of the option.
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For fixed-strike lookback puts, the owner gets to exercise at the underlying asset’s
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lowest price over the life of the option.
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While these options sound like you cannot lose with them, they are of course priced
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in a rational market and are considerably more expensive than vanilla options.
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Their high prices can be reduced by restricting the maximums and minimums used in calculating
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the payoffs, and these restricted versions are known as partial lookback options.
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Asian Options Asian option payoffs depend on the average
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price of the underlying over the option’s life, or some part of the option’s life,
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rather than the spot price of the underlying on the expiration date.
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The average can be calculated as either a geometric or arithmetic average.
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The primary advantage of Asian options is that they reduce the potential for singular
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episodes of market manipulation or one-off unusual price moves to undermine your investment
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thesis, which might have otherwise been accurate.
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Because of the volatility-dampening effect of the averaging feature, these are also cheaper
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than European or American options.
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Asian options are very common in the commodities space, particularly in options on oil.
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Rainbow Options Rainbow options are those where delivery at
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maturity can be on a choice of a number of assets.
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These are usually calls or puts on a best-of or worst-of a basket of Y underlying assets.
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This is also considered a type of correlation trading because the prices of these options
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are sensitive to the correlation among the basket’s constituents.
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Often Monte Carlo methods are used to value rainbow options.
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Basket Options Basket options have payoffs that depend on
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the performance of a basket of assets such as a set of individual stocks or indices,
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or a group of currencies.
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Typically the owner of a basket option has the right, but not the obligation, to buy
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or sell a basket of underlying assets at maturity.
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These are commonly used for currency hedging in institutions with varied currency exposures,
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and often end up being cheaper than individual options purchased on each currency.
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Quantos Quantity-adjusting options or quantos are
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derivatives where the underlying is denominated in a currency other than that in which the
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option is settled.
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A quanto has an embedded currency forward with a variable notional amount.
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They are attractive to investors who wish to have exposure to a foreign asset, but without
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the corresponding foreign exchange risk.
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These are used when investors expect the underlying foreign asset to perform well but do not expect
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that the foreign country’s currency will perform well over the same timeframe.
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Quanto futures, quanto options, and quanto swaps are available.
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Well that is it for this video, there is a bit more covered in the book whichh I have
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linked to below.
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The rules of youtube state that if you make it all the way to the end of one of my videos,
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you are required to hit the like button.
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Have a great day, and thanks for watching.
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Bye