#股票交易分享挑战 US Stocks

US stocks experienced a strong “V-shaped” rebound over the past week. The S&P 500 Index set new record closing highs on August 13 and 14, while the memory chip sector, led by SK Hynix and SanDisk, became the core driver of the rally.
I. S&P hits new high, Nasdaq nears previous peak—the strongest rebound themes are memory chips and AI cloud services After a deep correction in late July, US stocks staged a strong recovery in mid-August. The S&P 500 Index set new record closing highs for two consecutive days on August 13 and 14. The Nasdaq also quickly approached its previous high, almost recouping all the ground lost in the July correction.
Memory chips surge collectively SanDisk jumped 13.67% on August 14, Micron rose 4.23%, and SK Hynix gained more than 7%. Leading stocks released positive signals at an investor conference, including long-term contract restructuring of the industry cycle and breakthroughs in new HBF technology.
AI cloud services and optical communications diverge CoreWeave and Super Micro Computer reported better-than-expected after-hours results, with guidance far exceeding Wall Street expectations, sending their share prices sharply higher; however, the optical communications sector pulled back on August 14 after rising for several consecutive days.

II. Core drivers: cooling inflation and better-than-expected earnings provide a dual catalyst Inflation cools more than expected US July CPI rose 3.4% year over year, while core CPI rose 2.5% year over year, with both posting their lowest growth rates since March 2021. After the data was released, the market’s probability of a Federal Reserve rate hike in September fell sharply below 50%, easing concerns about short-term liquidity tightening.
Corporate earnings continue to beat expectations The earnings beat rate for S&P 500 constituents in the second quarter reached 76%, the highest level since 2021. CoreWeave, Super Micro Computer, Lumentum, and other companies in the AI industry chain reported revenue growth of 100% or even several hundred percent, validating the rationale for AI capital expenditures through “real orders and guidance.”

III. Market style: shifting from “hardware” to “applications,” while large technology stocks come under pressure
Capital flows toward segments with stronger earnings realization Within the AI industry chain, capital is shifting from GPU hardware, which had risen too much previously, such as Nvidia, toward computing power leasing and AI cloud service providers that can directly “collect rent” and monetize their services. Nebius’s quarterly revenue surged 454%, while CoreWeave’s backlog reached $104 billion. Technology giants diverge As of the close on August 13, most large technology stocks, including Nvidia, Apple, and Microsoft, had edged lower or posted limited gains, while second-tier technology blue chips such as SK Hynix and SanDisk, along with small and mid-cap AI application stocks, rose far more than the giants.$SNDK ‌.