They only way it catches back up is if significant events cause the smaller ownership to be worth $5 again.
copy and pasted --- the above --- is right 90% of the time with a split - like a reverse split - no argument
It is less the case (the decline you argue must happen) - we can debate how much less ---
when added cash - here say 400M or ? comes with the dilution
IMO - right or wrong - there is a huge difference between market action with a split (higher priced stock but NO new capital) and new shares which dilute but come with big $
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