There's always the bond market - loans, effectively. They could also sell non-transferable ownership; effectively a stock that couldn't be sold on. You get divi

There's always the bond market - loans, effectively. They could also sell non-transferable ownership; effectively a stock that couldn't be sold on. You get dividends and a say in how the company is run. That would drive stockholders to seek long-term sustainable profits rather than share price spikes, which sounds like a pretty good thing.