US stocks closed with all three major indexes falling as the debt crisis loomed; chip stocks generally fell, with Nvidia and Intel down about 2%.

At the close, the S&P, Nasdaq, and Nasdaq 100 all ended their two-day gains, while the Dow Jones saw a two-day decline. The Nasdaq fell below its highest level in almost eight months since September 12 last year, and the Nasdaq 100 fell below its highest level in nearly nine months since August 18 last year:

$S&P 500 Index (.SPX.US)$ It fell 18.95 points, or 0.46%, to close at 4119.17 points. $Dow Jones Industrial Average (.DJI.US)$ It fell 56.88 points, or 0.17%, to close at 33561.81 points. $Nasdaq Composite Index (.IXIC.US)$ It fell 77.36 points, or 0.63%, to close at 12179.55 points. $Invesco QQQ Trust (QQQ.US)$ Stocks fell by 0.7%. $Ishares Russell 2000 Value Etf (IWN.US)$ Indexes fell by 0.3%.

S&P 11 sectors generally declined. $Materials Select Sector SPDR ETF (XLB.US)$ csi commodity equity index $The Technology Select Sector SPDR® Fund (XLK.US)$ Fell by nearly 1%. $The Communication Services Select Sector SPDR® Fund (XLC.US)$ Fell by 0.63%. $Financial Select Sector SPDR Fund (XLF.US)$ Fell by 0.37%. $Energy Select Sector SPDR Fund (XLE.US)$ Slightly rose by less than 0.1%. $Industrial Select Sector SPDR Fund (XLI.US)$ The increase is less than 0.2% and has the largest increase.

Star tech stocks have mixed gains and losses. 'Metaverse' $Meta Platforms (META.US)$ After a 1% decline, it turned around and increased by over 1%. It almost fell during the closing session but has been rising for two consecutive days. $Apple (AAPL.US)$ A 1% decline, still not far from the nine-month high. $Amazon (AMZN.US)$ It turned around and increased by 0.8%, reaching the highest level within the month for six consecutive days. $Netflix (NFLX.US)$ It turned around and increased by 0.3%, reaching the highest level in over three weeks. $Alphabet-A (GOOGL.US)$ It turned around and declined by 0.4%. $Tesla (TSLA.US)$ A 1.5% decline. $Microsoft (MSFT.US)$ Fell 0.5% but not far from the 13-month high.

Chip stocks fell overall. $PHLX Semiconductor Index (.SOX.US)$ Fell nearly 2%, fell below 3000 points, and fell from a new high in over two weeks. But $Advanced Micro Devices (AMD.US)$ After falling 1.7%, it rebounded and refreshed a one-month high. $NVIDIA (NVDA.US)$ Fell 2% and fell below the 15-month high. $Intel (INTC.US)$ Fell more than 2% to a new low for the week. $Western Digital (WDC.US)$ Initially fell 5.5%, and also released financial reports. $GlobalFoundries (GFS.US)$ Fell over 9%. $Skyworks Solutions (SWKS.US)$ Once fell more than 12%.

AI concept stocks continue to rebound. $C3.ai (AI.US)$ Rising more than 3%, rising for five consecutive days from the three-month low to near three-week high. $BigBear.ai Holdings (BBAI.US)$ Rising more than 16% and closing with more than 6% gain, reaching a three-week high, $SoundHound AI (SOUN.US)$ Erasing nearly 5% gain to close flat, but also lingering near a three-week high.

Regional bank indexes fell for two consecutive days. The overall industry benchmark, the Philadelphia Stock Exchange $KBW Nasdaq Bank Index (.BKX.US)$ Falling by 1.7% then turning higher, hitting the lowest level since October 2020 last Thursday. KBW Nasdaq Regional Bank Index (KRX) fell more than 2% before closing down 0.7%, approaching the lowest level since November 2020 set last Thursday; $Spdr Series Trust S&P Regional Bkg Etf (KRE.US)$ Falling by 2.5% then closing down 0.4%, approaching the lowest level since October 2020 set last Thursday.

Among the 'big four banks' in the United States, $Citigroup (C.US)$ csi commodity equity index $Wells Fargo & Co (WFC.US)$ the decline in JPMorgan Chase and Bank of America narrowed significantly during the lunch break for regional banks. $PacWest Bancorp (PACW.US)$ After a 10% drop, JP Morgan Chase rebounded more than 2%, $Western Alliance Bancorp (WAL.US)$ After falling nearly 8%, Bank of America closed down more than 1%, $KeyCorp (KEY.US)$ After a 3% drop, Morgan Stanley rebounded by 0.4%, $Zions Bancorp (ZION.US)$ After a more than 3% decline, Wells Fargo rebounded by 0.7%.

$Airbnb (ABNB.US)$ The first quarter room nights and experience bookings were below expectations, and the company will repurchase up to 2.5 billion US dollars of stocks. The second quarter guidance is below expectations, and the stock price fell over 10% after hours.

Payment giant $PayPal (PYPL.US)$ fell nearly 13%, hitting the largest drop in a year and the lowest since late 2017. First quarter revenue and profit were better than expected, and the annual profit outlook is more optimistic, but the second quarter profit outlook is weak.

Dow Jones Industrial Average constituent stock $Boeing (BA.US)$ rose nearly 4%, and Europe's low-cost Ryanair ordered up to 300 737 Max aircraft, worth 40 billion US dollars.

$Novavax (NVAX.US)$ rose more than 52%, closing up nearly 28% to a three-month high. The company announced positive vaccine data and plans to cut global workforce by about 25%. Last month, there were doubts about its ability to sustain business, and first quarter revenue declined sharply, with better-than-expected loss per share.

"The most mysterious big data analysis company in Silicon Valley" $Palantir (PLTR.US)$ rose 23% to a three-month high. First quarter revenue and profit exceeded expectations, and it is expected to remain profitable every quarter this year. The first quarter of this year is the second time the company reports positive GAAP net income.

Retailers of sportswear and footwear $Under Armour-C (UA.US)$ Under Armour) plunged 9% to a two-month low. First-quarter revenue and earnings exceeded expectations, but quarterly gross margin was damaged due to excessive promotions, and the full-year revenue and earnings outlook is also not favorable.

Electric vehicle companies are frequently in the news. $Fisker (FSR.US)$ Falling more than 16% in early trading, losing the two-month high. First-quarter loss per share exceeded expectations, and the full-year production guidance was revised down. $Lucid Diagnostics (LUCD.US)$ Once falling more than 11%, demand concerns led to first-quarter losses exceeding expectations, stating that there is enough cash to sustain operations until the second quarter of next year. $Nikola (NKLA.US)$ Dropping 13%, refocusing on North America after exiting European joint ventures, first-quarter losses widened year-on-year.

On the 9th local time, US President Biden held negotiations at the White House with the leaders of both parties in Congress on raising the debt ceiling. The negotiations lasted less than an hour, and due to the significant differences in the positions of the Democratic and Republican parties, no progress was made that day.

House Speaker and Republican McCarthy stated that the meeting did not result in any useful discussions on solving the debt ceiling issue, and he and several other party leaders in Congress will meet with President Biden again on the 12th.

Before the meeting began, when asked whether the debt ceiling would be temporarily extended to September 30, McCarthy stated that he rejected the proposal for a short-term extension of the debt ceiling.

On Tuesday (May 9), Germany's Federal Financial Supervisory Authority (BaFin) head Mark Branson warned that in the current market turmoil, the German banking system is undergoing a real stress test. He expects serious weakness in the commercial real estate industry.

The collapse of Silicon Valley Bank in March this year led to turmoil in the banking industry, drawing continuous market attention. Due to aggressive rate hikes led by the US Federal Reserve last year, causing specific market chaos, the pressure on the banking industry has intensified.

On Tuesday (May 9), President of the New York FedWilliamsHe said that inflation is still too high and the Federal Reserve has not explicitly stated that the rate hike cycle has ended. He emphasized that there is no reason to cut interest rates this year and that he will closely monitor the impact of recent banking industry pressures on the economy when deciding on future monetary policy.

On Tuesday, Anthropic, an AI startup backed by Google, released a set of written ethical values for AI development, primarily applicable to training and protecting artificial intelligence.

Anthropic has always emphasized its goal of building "reliable, interpretable, and manipulable artificial intelligence systems" that won't tell users how to make weapons or use language with racial bias.

The AI ethical guidelines released this time are also referred to as the "Claude Constitution" by the company, drawing inspiration from several sources including the United Nations Declaration of Human Rights and even Apple's data privacy rules.

According to the latest research from SimilarWeb, a website traffic data platform, in the just concluded month of April, the total number of visits to ChatGPT's desktop and mobile devices continued to rise to 1.76 billion, an increase of 12.6% compared to March. However, compared to the month-on-month growth rates in January (131.6%), February (62.5%), and March (55.8%), there has been a significant decline.

It is worth mentioning that Bing experienced a sudden surge in traffic in March after connecting to the GPT-4 model, but it showed a month-on-month decline in April.

On May 9th, Apple announced the launch of iPad versions of Final Cut Pro and Logic Pro. The iPad version of Final Cut Pro introduces a series of tools that allow video creators to record, edit, complete, and share their work using a portable device. The iPad version of Logic Pro enables music creators to use a complete set of tools for songwriting, beat production, recording, editing, and mixing anytime, anywhere. Starting from May 23 (Tuesday), the iPad versions of Final Cut Pro and Logic Pro will be available on the App Store as subscription services.

Meta Platformsstates that it is updating and upgrading the bonus payment function on the Reels platform. The new feature will provide bonuses to public content creators on the Reels platform, with the specific amount depending on the number of views their content receives.

General Motors' official website announced on May 9th that Mike Abbott, former Vice President of Engineering at Apple's Cloud Services Division, will officially join General Motors on May 22nd, 2023 as the Executive Vice President of Software Business. He will report to Mary Barra, Chairman and CEO of General Motors. Abbott will lead the newly established software department, focusing on developing vehicle and enterprise software technology and solutions, and providing digital services and features to retail and commercial customers. The team will be composed of three software departments within the company, led by Scott Miller, Vice President of Software Defined Vehicles and Operating Systems, Stacy Lynett, Vice President of Information and Digital Technology, and Edward Kummer, Chief Digital Officer of Digital Business.