Don't panic... At first glance, it might seem like your Apple holding just lost 75% of its value. Not the kind of thing we like to wake up to on a Monday. Rub the sleep out of your eyes, chug a Nespresso, and perk up: you still hold the same amount of Fruit — it just got chopped into tinier slices (so did your Tesla Model 3).
What's wrong with a fat pizza slice?... Apple and Tesla think it's too caloric for investors to swallow. Companies with soaring stocks sometimes slice them into smaller pieces to make shares cheaper for retail investors (like us) to buy. Apple's stock price would be waaayy higher today if it hadn't done five stock splits since 1987 — Apple splits so hard, it's more like Banana.
Stock splits aren't that impactful anymore... now that fractional shares are becoming widely available at brokerages. Fractional shares take affordability much further than splits. If a stock costs $1K, you can buy 1/2, 1/10th, or even 1/300th of it — you choose the dollar amount or share amount. But splits aren't entirely useless: they suggest that a company is confident about its stock's continued growth. In July, Tesla posted its 1st full-year of profit and Apple had its strongest 2nd quarter ever.