>>714279286Bro, you are just showing a share value graph. This is useful for speculation: buying cheap, hoping you can sell for more. That's what speculation means. You buy something for its use value (voting in corporate matters, getting paid a share of the profit), but for reselling to someone who thinks it will go up even more (the bigger fool).
And like in all speculation/bigger fool schemes, there's always an ultimate, biggest fool. Ubisoft found its biggest floo in 2018. Microsoft will find theirs someday too.
The actual principled stock market was buying stocks to get a share of the profit, not to sell them later. It is tech companies, with their blitz scaling, and growing, growing, growing, and MAYBE finding the profit somewhere, that led to this buy-to-resell mentality. This used to be thought of as degenerate daytrader gambling not too long ago.