's (NYSE: BB) stock closed at its all-time high of $147.55 on June 19, 2008. Back then, the Canadian tech company was still known as Research in Motion, and its BlackBerry handsets controlled about 40% of the U.S. smartphone market and 20% of the global smartphone market.

But 15 years later, BlackBerry no longer produces smartphones. It lost that market to Apple (NASDAQ: AAPL) and Alphabet's (NASDAQ: GOOG) (NASDAQ: GOOGL) Google, which rendered its keyboard devices obsolete with a new generation of touchscreen phones. Instead, it's now a company that generates most of its revenue from cybersecurity software, Internet of Things (IoT) software, and patent licensing fees.

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Source Fool.com