How do I turn my BIGO options into shares, page-11

Yeah I appreciate that the gross profit isn't huge (there were 20,000 options available when I posted, so assuming you could have got them all away at 70c, it would have yielded a profit of $600), and even less after tax (assume 30% = net profit of $420), the fact is it is still a glaring risk-free profit - money for nothing. I thought there were supposed to be super-clever HFTs and broker algos combing through the market identifying and exploiting such inefficiencies at light speed??