It may make sense to hypothetically admit the TnC as a part of Ontario so as to cover them under the same securities framework as the TSX. Another issue could be currency. TnC, as with most tourist driven Caribbean islands, use the USD for simplicity. Moving to the CAD could have disruptive effects on the local economy as US tourists, the majority of all Caribbean tourists by a wide margin, go to jurisdictions like Bahamas. Most countries in the region are officially pegged to the USD (i.e. Bahamas, East Caribbean Dollar, Barbadian Dollar) and de facto use the USD for tourism related activities. Even Cuba accepted the USD as tender until '04 and still pegs one of it's currencies to the USD. As far as I know, French territories which use the Euro tend to have less developed tourism industries than USD based areas.