Following on from Charl, if you don't have the $150k to convert 1m options to 1m shares, you can sell some and use the proceeds from the sold options to convert the rest ie..
If OEX goes up to 25c and options are 10c, you can sell 600,000 options for $60k and convert the remaining 400,000 options to shares at 15c for $60k without using any of your own money so to speak...
OEX Price at posting:
16.2¢ Sentiment: Buy Disclosure: Held