There is no mention of the price of these shares. I can see two possibilities:
1. Everything above 2000 BTC is returned proportionately to the investors, so for example an investor putting up 20 BTC and there is 4000 BTC invested in total, he will get 20/2000=1% of the shares and 10BTC is refunded.
2. The price for each share is determined purely by demand, our investor with 20 BTC will get 20/4000=0.5% of the shares and no refund of BTC.
Which is it?
As mentioned the price is determined by demand.
I can't see that mentioned but thanks for the clarification. I guess I'm out then. For now at least.
What is going to happen is that there is no fix at 2000btc. If betking is manage to raise 4000btc and you contribute like 40btc which is 1%, you will get 1% of the share. If betking mange to raise 2000btc, you contribute like 40btc which is now 2%, you will get 2% of the total share. So you will realise that if the raise amount is more, you will get less share but your share will worth more. But if it is raise less, you get more share but each share will worth less. But do take note that in the end, the share will be determine by the market, so you are exposed to trading risk.