A bond can only grow to the USD value printed on the bond. DevCoin's (DVC) are a blockchain and blockchain coin, with DVC tokens trading on other platforms (STELLAR being the only I know) maybe more in the future? But the USD is not capped and the floor seems to currently be 1 satoshi if bought with BTC, or cheaper if bought with LTC in the past (1 liteoshi)... So proving that token currency, DeVCoin's (per devtome), has no bottom... but that also means it has no USD ceiling either. Which, if growth is unlimited, would be a good thing for DVC value at a later date - not limited to USD ;).
Did I get that right nova?
RE: There is no limit to growth...