The most recent announcement shows the details ( http://www.asx.com.au/asxpdf/20170823/pdf/43lnc0sx808123.pdf ).
Excercise price = $0.05
Expiry = Nov 2018
Black scholes value (assuming 100% volatility) = $0.005
( https://www.mystockoptions.com/blac...2&x=5.0&t=1.3&r=4%&v=100%&calculate=Calculate )
They were released today and some people seem to be selling at any old price even though they are worth about $0.005. I give it another month or so to shake out this excess supply until they start trading again at their fair value. Note they were selling for $0.009 like a couple of weeks ago!!!