美股盘中速递：Rigetti Computing 涨 13.57%

U.S. Stock Market Midday Update

Rigetti Computing rose 13.57%. Based on recent important news:

1. On September 19, Rigetti Computing announced it had secured a $5.8 million contract with the U.S. Air Force Research Laboratory to advance superconducting quantum network technology. This news drove the stock price up by 16%. Source: Dean Seal.

2. On September 18, Rigetti partnered with Dutch quantum technology startup QphoX to further advance quantum network technology. This collaboration enhanced market confidence in its technological potential. Source: Reuters.

3. On September 18, analysts rated Rigetti as a strong buy, with an average target price of $18.93, indicating optimistic market expectations for its future growth. Source: TipRanks. The quantum computing industry is gaining attention, with significant capital inflow.

Stocks with High Trading Volume in the Industry

Nvidia fell 0.03%, with a trading volume of $16 billion. According to recent key news:

1. On September 18, Nvidia announced it would invest $5 billion in Intel to co-develop data center and personal computer chips. This news caused Intel's stock price to soar 30% in pre-market trading, and Nvidia also rose over 2%.

2. On September 17, Nvidia President and CEO Jensen Huang reported a series of insider stock trades to the U.S. Securities and Exchange Commission. Nvidia's stock price has fallen 3.1% over the past month.

3. On September 18, China's State Administration for Market Regulation found preliminary evidence that Nvidia violated China's antitrust laws. If ultimately ruled illegal, Nvidia could face fines ranging from 1% to 10% of its sales from the previous year. The semiconductor industry has been volatile recently, requiring attention to policy changes.

Broadcom fell 0.06%, with a trading volume of $4.569 billion. According to recent key news:

1. On September 17, Broadcom expanded its partnership with Lloyds Bank to accelerate its digital transformation. This collaboration is expected to enable Lloyds Bank to provide faster and more reliable digital services to its 28 million customers and businesses in the UK, boosting Broadcom's stock price.

2. On September 17, Broadcom executives sold company stock, raising market concerns and leading to a decline in stock price.

3. On September 16, the Philadelphia Semiconductor Index rose for the ninth consecutive trading day, while Broadcom's stock price fell 1.1%, but has accumulated a gain of 55% this year. AI infrastructure spending is expected to reach $3 to $4 trillion, driving tech stocks higher.

AMD fell 0.57%, with a trading volume of $4.276 billion. According to recent key news:

1. On September 19, Nvidia announced a $5 billion investment to co-develop AI server custom chips with Intel, raising market concerns about AMD's competitiveness, putting pressure on AMD's stock price

2. On September 18, AMD Chief Technology Officer Mark D. Papermaster sold company stock, further intensifying market doubts about internal confidence in the company.

3. On September 17, Erste Group analyst Hans Engel downgraded AMD's rating from Buy to Hold due to concerns over the company's operating profit margins and valuation. Competition in the AI chip market is intensifying, and macroeconomic uncertainties are increasing.

Stocks with High Market Capitalization in the Industry

TSMC fell 1.39%, with a market capitalization of $1.37 trillion. According to recent important news:

1. On September 17, TSMC experienced a massive after-hours trade, with prices reaching NT$1405, setting a new historical high, and trading volume significantly increased, indicating market optimism about its future prospects. This event drove stock price fluctuations, sourced from market observations.

2. On September 18, the U.S. Federal Reserve announced a 25 basis point rate cut, encouraging U.S. stocks to reach historical highs, and the Taiwan stock market also benefited from the rise, leading to fluctuations in TSMC's stock price. This event affected market sentiment, sourced from market dynamics.

3. On September 19, Apple secured over half of TSMC's 2nm capacity, further consolidating its leading position in the chip market, resulting in fluctuations in TSMC's stock price. This event reflects market demand for TSMC, sourced from Economic News Daily. Tech stocks are strong, and capital inflows continue