A high-profile electric-vehicle (EV) manufacturer has become the newest stock-split stock.

For the better part of the last three years, the evolution of artificial intelligence (AI) has been the hottest stock market innovation. But AI isn't the only trend responsible for lifting the tide on Wall Street. Investor euphoria concerning stock splits in high-profile companies has also played a key role in sending the major stock indexes to new heights.

A stock split is a tool publicly traded companies have at their disposal to superficially adjust their share price and outstanding share count by the same factor. These changes are superficial in the sense that they don't alter a company's market cap or in any way impact its operating performance.

Though a stock split can move a public compan

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