Tesla: Down 65% Like many disruptive companies with high valuations, electric vehicle maker Tesla (NASDAQ: TSLA) was caught in the undertow of falling stock prices brought on by the bear market. Supply chain issues resulting from COVID-19, high inflation, rising interest rates, and the worst year on Wall Street since the Great Recession wreaked havoc on investor portfolios. Meta Platforms: Down 64% There's a well-documented phenomenon in the annals of marketing: When economic uncertainty pops up, companies do their very best to rein in spending -- starting with the advertising line on the income statement.