Template:M summ Equity Derivatives 6.3(a): Difference between revisions

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The rubber meets the road in the definition of {{eqderivprov|Disrupted Day}}, whereupon you can find out what happens to your Transaction should you suffer a Market Disruption Event. These apply to Share Transactions, Basket Transactions and Index Transactions: it is least intuitive and most complicated in the case of Index transactions because, having the most underlying components, these are the ones most likely to be only ''partially'' disrupted.
An {{eqderivprov|Index}} is really just an glorified, overgrown dynamic {{eqderivprov|Share}} {{eqderivprov|Basket}}, whose constituents from time to time are determined by a third party “index calculation agent” according to pre-formulated index rules.  
An {{eqderivprov|Index}} is really just an glorified, overgrown dynamic {{eqderivprov|Share}} {{eqderivprov|Basket}}, whose constituents from time to time are determined by a third party “index calculation agent” according to pre-formulated index rules.  


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You cannot, of course, ever guarantee you will be able to trade at exactly the official closing price, but it helps in trying to get near it if the Exchange on which that price is determined is open at the time when that closing price is derived, is liquid, tradable, and isn’t subject to some unforeseen disruption. These are “{{eqderivprov|Market Disruption Event}}s”.
You cannot, of course, ever guarantee you will be able to trade at exactly the official closing price, but it helps in trying to get near it if the Exchange on which that price is determined is open at the time when that closing price is derived, is liquid, tradable, and isn’t subject to some unforeseen disruption. These are “{{eqderivprov|Market Disruption Event}}s”.
In a classic piece of {{icds}} over-engingeering, the operative term “{{eqderivprov|Market Disruption Event}}” is broken down into three sub-definitions — “{{eqderivprov|Trading Disruption}}”, “{{eqderivprov|Exchange Disruption}}” and “{{eqderivprov|Early Closure}}” — which don’t appear to have any independent claim on existence at least insofar as the pre-printed {{eqdefs}} are concerned.
Remember the underlying vibe here: this is meant to save the {{eqderivprov|Hedging Party}}’s bacon if for some reason it can’t ''actually'' hedge its exposure. One can hedge ''Index'' exposure in multiple ways: through a [[total return swap]], by buying futures on the index, or by trading the physical stocks underlying the index, or a combination of the above. Thus, the language is nice and loosey-goosey, allowing the flexibility to the {{eqderivprov|Calculation Agent}} however it elects to hedge, and so contemplates a disruption whether it  is because there is no market in the constituent components ''or'' index futures.
But this provides some rather odd optionality. It might be that some of the {{eqderivprov|Index}} component {{eqderivprov|Shares}} are disrupted, but, say, [[futures]] in the {{eqderivprov|Index}} are not, and the {{eqderivprov|Calculation Agent}} ''can'' in fact fully hedge its exposure, but it could technically invoke an {{eqderivprov|Index Disruption}} anyway. At times of maximum dislocation, published {{eqderivprov|Index}} values don’t always fabulously represent the value of their constituents, especially where those constituents are connected with countries which unexpectedly invade Ukraine. This can lead to frantic conversations between counterparties to {{eqderivprov|Index Swap}}s, usually agreeing to flat out ignore the equity derivatives definitions and do what seems the fair thing in the unusual consequences.
Note: there are separate disruption events relating to change, cancellation or non-publication of Indices themselves. For that, see Section {{eqderivprov|11.1(b)}} relating to {{eqderivprov|Index Adjustment Event}}s. This is what happens if external events conspire to prevent trading in the component underliers comprising an Index — you can’t directly invest in the Index itself, of course, it being only an intellectual construct.

Latest revision as of 01:06, 7 August 2023

The rubber meets the road in the definition of Disrupted Day, whereupon you can find out what happens to your Transaction should you suffer a Market Disruption Event. These apply to Share Transactions, Basket Transactions and Index Transactions: it is least intuitive and most complicated in the case of Index transactions because, having the most underlying components, these are the ones most likely to be only partially disrupted.

An Index is really just an glorified, overgrown dynamic Share Basket, whose constituents from time to time are determined by a third party “index calculation agent” according to pre-formulated index rules.

That being the case, one can’t directly hedge by buying the “Index”: there is no Index, in the abstract, to buy (though of course you can buy index-tracking ETFs and Index futures — though these only really push the fundamental observation down one level). At some point, to hedge the risk of a glorified, overgrown dynamic {{eqderivprov|Share} Basket, someone, somewhere, has to go and buy the Shares in that basket, at the prices that the index determines, and that means having access to the markets on which those index constituents trade, at the point in time at which the index rules say one should take the price of those Shares.

Another oddity is that you are not necessarily trying to hit the best available price for the Share at the time of sale; you are trying to hit the actual price determined by the Index Calculation Agent, however good or bad that price is. That price is usually the “official closing price” of the Exchange.

You cannot, of course, ever guarantee you will be able to trade at exactly the official closing price, but it helps in trying to get near it if the Exchange on which that price is determined is open at the time when that closing price is derived, is liquid, tradable, and isn’t subject to some unforeseen disruption. These are “Market Disruption Events”.

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