More than $2 trillion in Nasdaq-100 market value evaporated during October 2026. On October 30 alone, the Nasdaq Composite fell 2.9% and the S&P 500 dropped 1.8%. Amazon and Intel combined threatened to erase roughly $200 billion of that total.
» Read more about: $2 Trillion Wiped Out: Why the U.S. Stock Market Crashed »
“The news says the S&P 500 hasn’t risen much, but my mutual fund is up.” In such cases, it might be a bit premature to immediately conclude that the product is performing well.
To compare performance, you first need to align how the figures are calculated.
Hello, this is Hal.
The U.S. stock market yesterday, October 30, 2026, saw intense selling, particularly in tech stocks, as concerns grew that massive investments in AI infrastructure are straining corporate cash flows.
Earnings from major IT and semiconductor companies failed to meet market expectations, leading to a sharp decline of nearly 3% in the NASDAQ Composite Index.
Investors in Qiagen N.V. QGEN need to pay close attention to the stock based on moves in the options market lately. That is because the Dec. 18, 2026 $55 Put had some of the highest implied volatility …
» Read more about: Do Options Traders Know Something About Qiagen Stock We Don’t? »
The last time the S&P 500‘s Shiller cyclically adjusted P/E ratio was as high as it is now, it was August 2000. The S&P 500 was sitting near an all-time high of around 1,500, in the wake of a five-plus-year bull market.
At the time, the Shiller ratio —
Wall Street closed October with a brutal selloff, erasing roughly $2 trillion from the Nasdaq-100’s market value as investors questioned whether the AI boom can justify its enormous costs.
The wipeout is slightly larger than SpaceX’s entire market value,
» Read more about: Why did US stock market crash? $2 trillion AI selloff, explained simply »
I continue to engage in short-term swing trading, where I purchase Japanese stocks during my lunch break on weekdays and, in principle, sell them during my lunch break on the next business day. I use ChatGPT for stock selection and trading decisions, verifying with my own money whether it is actually possible to make a profit in Japanese stock trading using AI.
» Read more about: Challenging Japanese Stock Swing Trading with ChatGPT #45 »
If you’re 87 or getting close to it, your Social Security check probably looks different from what a 67-year-old retiree receives, and not just because of cost-of-living adjustments. The age at which you claimed, the economy you worked through, and even your sex all leave a mark on your monthly benefit decades later.
Warren Buffett, the famous former CEO of Berkshire Hathaway (NYSE: BRKA)(NYSE: BRKB), never wrote an investing book. Instead, he peppered investment wisdom into the annual reports of the company he ran, and let his thoughts slip into the interviews he conducted. What was most notable is that he didn’t give specific stock advice;