Stocks See-Saw: Dow Down, Nasdaq Up on Tesla's Surprise Earnings

Investors had a rollercoaster day as the Dow Jones Industrial Average plunged over 200 points, while the Nasdaq Composite Index soared. This happened because Tesla's earnings report was a pleasant surprise. Tesla's stock jumped by 20% after the company announced better profits than expected. This is the first time in nearly two years that Tesla has seen growth in its earnings. Meanwhile, McDonald's is in the spotlight due to an E. coli outbreak linked to their Quarter Pounder burgers. The fast-food giant is now facing its first lawsuit over this issue. IBM also had a tough day, with its shares dropping by 6% after the company's earnings report disappointed investors. Although IBM's earnings per share were slightly better than expected, the revenue didn't meet Wall Street's targets. This highlights the ongoing struggles in the tech sector. As the day came to a close, all eyes were on Capital One, which was set to release its earnings later in the evening.