They have negative cash flow, insane amounts of debt, could be shut down at any time at the whim of their creditors.
Welcome to the stock market in 2021.
That would be known as a "forced bankruptcy."
I believe that happened in England to a cruise Line and also in other parts of the world. The creditors get panicky and want what's left of their loaned money back, before it is gone. It seems the creditors of the big 3 Cruise Lines want to take a chance on a Cruise Line recovery, to get their loans with interest payed back.
I am sure the creditors are watching closely, and anymore delays in Cruising may be the "straw." -Tom.