It's an unusual concept. The model is that they will give frequent players some ownership. Basically paying off bonuses with stock shares that you'll get dividends on at the end of the year.

However, they will not allow you to participate in that program if you already have an account at UB. They're doing it strictly to draw new, non-UB players.

I received my reply: I cannot use the same account as I have at UB at present, but I can open a new account at pokershare to obtain the promotions posted at that site "because we are still working to find out the best way to share both sites at the same account".
Will try it out and let you know how it goes

Well....I just set up a new account, everything went very smoothly during setup, exactly like the UB sign up. I used all the same details, email, address, neteller a/c, just a different screen name. I was able to get the 100% bonus option, so I put in the max ($250) and there is now $250 in bonus dollars pending in my account.
I think I will have to be very careful though to use the correct screenname for the skin I am playing on. Is this an issue for party or crypto skins???
I'll play on this skin for a couple of days and see how the shares are going (it takes 48hrs to update the shares thingy) and report back