Options on the FTSE 100 and the 100 or so largest companies, by market capitalisation. These options are bought and sold on the traded options market, where as option prices for smaller company shares may only be available on request.
Transferable options with the right to buy and sell a standardised amount of a security at a fixed price within a specified period.
Transferable options with the right to buy and sell a standarised amount of a security at a fixed price within a specified period. 
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