Ahh, thanks, I just learned something
Charting services don't show it I guess because it's not quoted on an exchange, but brokerages (at least some) do show it.
For example HTHC pops up on E*Trade, but doesn't show a price. Maybe cuz it's after-hours?
I'll check again on the open. No intention of buying it fwiw, just messing around.
Thanks Ernie!