This is a but IMHO
This is a bug.
I am looking at the stock RDNT.
Looking at ALL, this goes back to 1997.
The graph on Apple Stocks is different to the graph on Yahoo Finance.
IMHO The YF graph has NOT incorporated some stock splits.
1st
ranked

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Paul Kindervater commented
Same for $COKE
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Paul Kindervater commented
This is a bug IMHO