Stocks happening this week

1. Berkshire Hathaway reached a historic $1 trillion market cap yesterday, becoming the newest member of the trillion-dollar club. Earlier, TSMC had also reached this milestone but has since fallen below the mark, now overtaken by Berkshire. With Eli Lilly's blockbuster weight loss drug making headlines, could it be the next company to join this exclusive club?

2. Nvidia reported a remarkable 122% year-over-year revenue increase in its latest quarterly results. However, the share price fell 7% in after-hours trading. The company’s guidance for the next quarter indicates an 80% year-over-year growth, which, while still strong, suggests a slowdown that may have concerned some investors. Given the stock's significant run-up, it’s normal for investors to look for reasons to take profits.

3. Super Micro Computer is under fire after short-seller Hindenburg Research accused the company of undisclosed related-party transactions and failure to comply with export controls, among other issues. The situation worsened as Super Micro delayed the release of its financial results, which could be perceived as validating Hindenburg’s allegations. The stock dropped 19%, with an additional 7% decline in after-hours trading.

4. The S&P 500 Equal Weighted ETF (RSP) reached a record high this week, while the traditional S&P 500 ETF (SPY) remains below its peak. This development is a positive sign, suggesting that the current bull market may be broadening beyond just the largest companies.