Do you have any idea what the low-production run consists of? How many chips? I estimate several hundred chips giving between 2.4TH/s and 8TH/s.
EDIT:
If we get 8TH/s and have to wait 3 weeks before getting more hash power I have calculated expected returns.
First week: 40 bitcoins. + 7 bitcoins we are making now.
Second week: 30 bitcoins + 5 bitcoins.
Third week: 23 bitcoins + 3 bitcoins.
= 108 bitcoins = /2 = 54 (because Ken keeps half for buying more chips and stuff)
So the low-production batch should give each share a dividend in the three weeks of: 54/10,000,000 = 0.00000540 (540 Satoshi per share)
This estimate assumes Ken uses the entire low-production batch to mine, hopefully the miners he sells will have a better return to the shareholders.