There's only one math equation that you might need a calculator to calculate. SMURF is currently trading at H$60, and it's Thursday night, so it will probably adjust to something around that. Which translates to an opening weekend of about $22 million (60/2.7=22.2 - the calculator gives you a nice precise number). Compare that number, 22, to the strike price, H$25.
The call is a bet that it will open above the strike price. But it looks like it will open below the strike price. So short the call.
The put is a bet that it will open below the strike price. Which it looks like it will. It will probably open about H$3 - H$4 below the strike price, and the put is currently at H$3.85. So it isn't really worth it investing in the put, because it probably won't go up or down dramatically in value. If you buy it at H$3.85 and it cashes out at H$4, you make 15 cents for every put. If you buy it at H$3.85 and it cashes out at H$3.50, you lose 35 cents. Not really worth it.
[SMURF] [SMURF.CA] [SMURF.PU]