Expiry calculation

The following terms are used by OptionsClick to calculate expiry rates for:

Bid Price – The last known price prior to expiry, as quoted by Data Provider.

Ask Price – The last known price prior to expiry, as quoted by Data Provider.

Last Trade – The last price actually paid for the asset prior to expiry, as quoted by Data Provider .

Last Quoted Index Price – Last price for an Index prior to expiry, as quoted by Data Provider.

In the event that no pricing data has been received within 60 seconds prior to expiry, the data will be taken from the first quotation received following expiry.

Expiry Level Calculations

Expiry levels are calculated as follows:

TYPE	EXPIRY LEVEL FORMULA
Indices	The last quoted index price appearing in the Data Provider field at expiry
Currency	The sum of the bid and ask price divided by 2
Stocks	The sum of the bid and ask price divided by 2
Commodities	The sum of the bid and ask prices divided by 2

Expiry Level Per Individual Asset

For full details on expiry calculations for each asset, see our Asset Index.