Yes, indeed, the whole point of being listed is that there's always liquidity (at least a market maker) and so a price signal. And in theory you can set your ow

Yes, indeed, the whole point of being listed is that there's always liquidity (at least a market maker) and so a price signal. And in theory you can set your own risk limits. (Of course if trading is halted for the stock because a sudden drop/jump, that's a different story.) However, investing is always a story about managing risks (so expectations). Public or private, even if it's itself an investment company, it's still just one very fragile basket. And usually there's always someone who has so different risk/expectation profile that they'll take the other end of the transaction. Anyone holding "ETR RKET" has some strange/complex ideas.