It's bad idea. I suggest you not to participate in the pre-market TOMA, and better wait till the convertion rate to be published by the developers.

Have you seen what happened to the Major Pre-market traders? The majority of them bought Major token 2$ - 2.4$, then it's dumping to 1.2$ at the listing time. I'm sorry but buying token from the pre-market is a stupid idea. If you're caring with your money, stay away from Pre-market trading. Be patient until Toma is listed on exchange site.