There are now 2 shares left. There was a quick flurry of interest at first when most of the shares were sold. I had expected to have to start a second group. Interest has slowed down now, so I will probably be sticking to one group.
By the way, the maximum number of shares were set to set 17 because the jackpot is $17 million cash.
I will check next week on how sales are going to try to estimated the group's probability of winning a first or second place prize.