I have (7-figure tradiing Account)   26 positions, all TSX. My top ten, by % of account, are  FTN (14%), KEY (8%), ALA (5%), CXR (4%), PPL (9%), WCP (5%), SLF (5%), FRU (8%), EH (5%), and IPL (4%) , represeting 67% of my non-RSP account. Have a look-see at my note about Fabrice Taylor, that "licenced" trader is sitting in a 40 (50%?) cash position. Hey, I'm just a DIY Bloke.
Don't be a "vacuum cleaner" and buy all types of stocks." If you dont like breakfast cereal, why buy Wheaties, right?