There was only 10.8m december 2012 options left as per the last 3B notice. They will be soaked up like a sponge and will have little or no effect between now and december whenever they are finished off.
The rest of the options are dated from 2014 - 2017 which can be converted at anytime and sold but no pressure for the holders of these options to do anything until 2014 if they wish.
Monday will be likley be a fairly big news day, at the very least the first hole of the 900 line will be completed among other news due.
Expiry 31/12/2012 Exercisable @ 60c 10,875,000
Expiry 31/08/2014 exercisable @ 60c 35,500,000
SIR Price at posting:
$2.50 Sentiment: LT Buy Disclosure: Held