RE:Totally Believe in MPVDThat is a bad move. If this thing goes to the blue sky limit. You will be taxed as regular income when you withdraw the money. If it tanks you lose. Both are loosing propositions in an RSP because you cannot claim capital gains or losses. If the shares are in a regular account you at least get a 50% capital gain tax free and only pay tax on the remaining 50%. If it is a lost you at least can recoup the money on future capital gains. The best bet for this spec stock is in theTFSA , no taxes. Also if you were to make a ton of money in an RSP and your income is 76,000 or more you risk loosing your old age security incrementaly until 132,000 where it totally disapears.