[Maine Mariner]

If future corporate earnings were expected to fall by 80% or
interest rates unexpectedly increased just such a fall would be justified. But if the price of stocks of some companies fell by 80%, they would have enough cash on hand to buy up all there shares.

[robroys woman]

...they would have enough cash on hand to buy up all there shares.

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That is because, at the end of the day, there is actually something there, physically, behind those shares. ;)