Those of you complaining about how long this is taking (and since WB has been brought into the discussion), please read this recap of a good chunk of Berkshire Hathaway's price history (some of which faintly mimics the timeframe for POET between Opel and now):

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Yet EIGHT YEARS LATER, Berkshire hit a low of $38 in 1976. Down a dollar in eight years! Can you imagine the bitching (and selling) Dazz would've done back then. No dividend and -$1 over an 8-year period.

With his luck, he'd probably have bought BRK at its $93 high in early '73! So, over an eight-year period BRK went nowhere and over the last three years of that time frame, it dropped from $93 to $38.

Of course, THE BUSINESS ITSELF was doing great ALL ALONG. There were, even in hindsight, no major screw ups. Just tons of smart Buffett decisions. The market was simply wrong.

Throughout its history, the longer Berkshire stagnated, the more spectacular its subsequent explosion. After going nowhere for those eight years from '68 to '76, Berkshire went from $39 to $1385 in the next SEVEN years (by late '83). A 35-bagger in less than the next eight years!

https://boards.fool.com/berkshire-price-history-since-1965-15568119.aspx