Nasdaq Surges 1.69%—Has AI “Reignited”?

On September 17, U.S. technology stocks rebounded noticeably, with the Nasdaq up 1.69% and the S&P 500 up 1.14%. Semiconductor stocks performed particularly strongly. Arm rose more than 8%, AMD and SanDisk rose more than 6%, Micron gained more than 5%, and NVIDIA rose more than 2%.
This trend can easily create a familiar feeling: Is the AI bull market back?
But one thing the investment market loves to do is package “a one-day surge” as “the beginning of a new trend.”
In reality, determining whether the AI rally can go far requires looking beyond index gains and focusing on three things: earnings, capital expenditure, and valuation.
At present, demand across the AI industry chain remains strong, but the high-interest-rate environment persists. The Federal Reserve has just completed its first rate hike in years, meaning that funding costs have not entered a sustained decline.
In my view, Arm is actually a stock worth watching closely in this rally.
The reason is simple: Arm is further expanding from its traditional chip-architecture licensing model into the AI chip business. The company’s CEO recently said he was more confident in achieving the $2 billion AI chip sales target, while emphasizing that demand remains strong but supply constraints are still an important limitation. #美股AI概念股全线反弹 + #Gate广场中秋团圆局
Of course, Arm’s stock price has already experienced a very substantial rise this year, so both valuation and volatility require particular attention
So my approach is not to chase the surge, but to watch whether subsequent trading volume, performance, and industry orders can continue to validate it.
A truly major AI rally will ultimately have to be backed by profits.