It's probably because you trust dadice who have left stunna negative so that is taken into consideration.
Im not really sure why anyone would ever trust DaDice
I would defiantly remove them from your trust list ASAP.
I am an current investor there, not high amount though and I like the community as well, an investor of 0.3btc.
P.S @quickseller- are all those sellers your alts?
It would probably be a good idea to divest your money as there is a good chance that they do not have the bankroll they claim to have and as a result the best case scenario is that your earnings will be lower then they should be while a more likely scenario would be that they are going to not be able to pay out any big wins and your entire investment gets wiped out if one player wins even a moderate amount of money.
There are plenty of other reputable sites you can invest in that do not carry these kinds of risks.