SDX Commodities Help > Working with SDX Commodities & Energy > Shortcuts in SDX Commodities & Energy > Using Duration Shortcuts for an Instrument’s Expiry Dates

Using Duration Shortcuts for an Instrument’s Expiry Dates

When entering some instruments, instead of manually entering the duration of the underlying instrument(s), you can also set the duration using a duration shortcut.

You can set duration shortcuts for the following instruments: vanilla strip, vanilla strip strategy, Asian, Asian strip and an Asian strip strategy, OTC spread strip, swap, swap strips and swaptions. However, which duration shortcuts can be used depends on the type of instrument. As listed in Table 1 a duration shortcut can be used for all these instrument types, unless noted otherwise.

For all strips, you specify the duration in the Shortcut (Schedule) field; for swaptions and swaps, you specify the duration in the Swap Term field. For Asians, you enter the duration in the Expiry field.

Once you have entered the shortcut, the following fields are set automatically as relevant:

Begin Date and End Date fields

 

The Begin Date field is set to the beginning of the period specified by the shortcut, even if that date occurred in the past. So for example, if in April 2008 you specified a shortcut of cal08, the Begin Date field is now set to the first trade date in January 2008, and the End Date field would be set to the end of 2008.

The actual expiry dates of the individual instruments are set according to both the duration and the expiry frequency chosen.

 

For a list of shortcuts to use when entering an option on electricity prices, see Using Shortcuts for Electricity Assets, Coal Assets and NBP UK Natural Gas.

To use a shortcut to define a strategy's duration:

In the Pricing page enter the shortcut code for the strip's duration in the ShortCut Schedule/Swap Term/Expiry field as relevant.

List of Shortcuts For a Strategy's Duration

See Table 1 for a list of the duration shortcuts. Alternatively, to see this list in the system itself, click the button next to the ShortCut (Schedule) field in the pricing page itself.

Table 1: Shortcuts for electricity assets, coal assets and NBP UK Natural Gas

Shortcut

Duration

Where

Example

calyy

Calendar Year

<yy> are the last two digits of the year.

Note: This format can only be used for strips.

cal09

That is, the strip's duration is 2009.

xqyy or qxyy

Quarter in a specific year

<x> is the quarter and <yy> are the last two digits of the year.

Note: This format can only be used for strips.

1q09

That is, the strip's duration is the first quarter in 2009.

xhyy or hxyy

Half of a specific year

<x> is the half of the year and <yy> are the last two digits of the year.

Note: This format can only be used for strips.

2h08

That is, the strip's duration is the second half of 2008.

wyy

Winter (which is November 1 of the specified year to the following March 31 for all commodities except for NBP UK Natural Gas, where winter is October 1 to the following March 31)

<yy> are the last two digits of the year.

Note: This format can only be used for strips.

w08

That is, the strip's duration is the winter of 2008, i.e., Nov 2008-March 2009.

syy

Summer (April 1 to October 31 for all commodities except for NBP UK Natural Gas only, where summer is April 1 to September 30) of a specific year

<yy> are the last two digits of the year.

Note: This format can only be used for strips.

s08

That is, the strip's duration is the summer of 2008, i.e., April 2008-October 2008.

ayy-bzz

Period, i.e., a specific month in a year to a specific month in the same year or later

<a> and <b> can be any of the following:

f for the January contract

g February contract

h March contract

j April contract

k May contract

m June contract

n July contract

q August contract

b September contract

v October contract

x November contract

z December contract

y The month we are in today

<yy> and <zz> are the last two digits in the year(s) required So, for example, h08-g09 defines the strip's duration as March 2008-February 2009.

Note: This format can only be used for strips.

 

ayy

A specific month of a specific year

<a> can be any of the following:

f for the January contract

g February contract

h March contract

j April contract

k May contract

m June contract

n July contract

q August contract

b September contract

v October contract

x November contract

z December contract

y The month we are in today

<yy> are the last two digits in the year required.

n09

That is, the strip’s duration is from 1 Jul 2009 to 31 July 2009.

rop

The remainder of the defined period

<p> can be any of the following: m – rest of month

q – rest of quarter

y – rest of year

w – rest of winter (where winter is November 1 of the specified year to the following March 31 for all commodities except for NBP UK Natural Gas, where winter is October 1 to the following March 31)

s – rest of summer (where summer is April 1 to October 31 for all commodities except for NBP UK Natural Gas only, where summer is April 1 to September 30)

Note: rom can only be used for an Asian option or a swap; roq, roy, ros and row can be used for a vanilla strip, Asian strip, swap strip and swaption.

If the trade date is set to 23 February 2009, then for:

rom, roq, roy, ros, row

The start date is set to the next calendar day after the trade date: 24 February 2009

The end date is set to the last day of the specified period. So, for example, for rom, this is 31 March 2009; for roq, this is 31 March 2009; for roy this is 31 December 2009; for row this is 31 March 2009.

Exceptions You cannot:

Enter ros if the trade date is in the winter.

Enter row if the trade date is in the summer.