From a coin perspective there is one, actually three, being launched at $10, $100, $1,000 which work on a buyback at fixed 5.8% per week for $10 for 12wks, $2.88% per week for $100 for 24wks, and 1.35% per week for $1,000 for 48wks, they are not securities but act as bonds and expire after the time ...