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Nvidia (NVDA) has lowered the HBM4 bandwidth specifications for its Rubin GPU, introducing a new variable into Micron's (MU) growth outlook. Nvidia's current product page lists the per-GPU bandwidth at 19.2 TB/s, down approximately 12.7% from the previous 22 TB/s, while memory capacity remains at 288GB.

In October 2026, a pullback in mega-cap tech stocks reshaped the global market capitalization rankings. Apple (AAPL) rose to the top spot with a market cap of $5.03 trillion, Nvidia (NVDA) slipped to second place at $4.93 trillion, and Microsoft (MSFT) surpassed Google's parent company Alphabet (GOOGL) to take third.

On October 30 Eastern Time, U.S. stocks fell sharply on Friday as investors sold off AI-related shares and rotated into defensive sectors such as consumer staples and healthcare. With the U.S. midterm elections approaching, selling pressure intensified in the afternoon, with the Nasdaq significantly underperforming the Dow. At the close, the Dow Jones Industrial Average fell 1.09% to 51,770.31; the Nasdaq Composite Index dropped 2.86% to 25,437.00; and the S&P 500 Index declined 1.82% to 7,580.07.

Following the release of its third-quarter earnings report, Intel (INTC) shares tumbled over 30% in early trading. If the losses hold through the close, it could mark the stock's worst single-day performance since 1974. Additionally, historical data suggests that now is not a good time to buy.

On October 30 Eastern Time, US tech stocks suffered a sell-off. The Nasdaq Composite Index fell more than 2%, hitting its lowest level since August this year; the Philadelphia Semiconductor Index dropped over 7%, marking its largest decline since June 5 of this year; the Nasdaq 100 Index fell more than 3% at one point, and the S&P 500 Index declined by about 1.5%. Following its earnings release, Intel (INTC) plunged 30% at the open, dragging down the broader semiconductor sector. On the same day, Amazon's (AMZN) weaker-than-expected results further exacerbated market concerns regarding returns on artificial intelligence (AI) investments and cash flows among tech companies.

On October 30, Eastern Time, international gold and silver prices both fell. Spot gold (XAUUSD) breached the $3,900 mark, falling to as low as $3,891, down over 3%; spot silver dropped below the $50 level, declining over 5%. Gold's cumulative drop for the month has exceeded 6%, marking a second consecutive monthly decline, while silver has fallen approximately 18% since October. Rising oil prices intensified concerns over energy inflation and reinforced market expectations for a Federal Reserve rate hike in December, serving as a primary factor behind the sell-off in gold.

TradingKey - As of press time on October 30 Eastern Time, SanDisk (SNDK) fell 9.02% in pre-market trading to $1,210.09.

TradingKey - On October 30, Reddit (RDDT) shares plunged by about 23% in pre-market trading to below $100, representing a cumulative pullback of roughly 62% from its 52-week high of $263.5. Although the company's third-quarter revenue and earnings both exceeded market expectations, investors focused on lower-than-expected fourth-quarter guidance, a continued decline in search engine referral traffic, and a potential significant slowdown in user growth.

TradingKey - On October 30, AstraZeneca (AZN) shares rose more than 5% in pre-market trading. The company's third-quarter revenue and earnings both exceeded market expectations, while it reaffirmed its full-year guidance and announced a restructuring plan expected to unlock $1.5 billion in annual benefits, bolstering investor confidence in its medium- to long-term growth prospects.

TradingKey - In pre-market trading on October 30 ET, futures on the three major U.S. stock indexes diverged. As of press time, Dow Jones Industrial Average futures were roughly flat, S&P 500 futures fell about 1.05%, and Nasdaq 100 futures dropped about 2.52%.

TradingKey - Reddit stock forecast: RDDT drops about 23% premarket after warning that Google's AI search is cutting its traffic, despite a Q3 revenue beat.

TradingKey - On October 30, U.S. PC and server hardware stocks tumbled across the board in pre-market trading. Shares of Dell Technologies (DELL) fell over 10%, HP Inc. (HPQ) dropped more than 8%, Hewlett Packard Enterprise (HPE) declined over 6%, and Super Micro Computer (SMCI) also fell more than 5%. Intel's latest industry warning heightened market concerns over PC demand, inventory adjustments, and hardware enterprise profit margins.

TradingKey - Amazon stock forecast: AMZN slides 7% premarket as a $42.4 billion cash outflow outweighs AWS's 39% growth, putting $226.21 support to the test.

TradingKey - As of press time on October 30, Eastern Time, Amazon's (AMZN) pre-market stock price fell 7.1% to $226.48.

TradingKey - Chevron stock forecast: CVX trades near a record before its Q3 report, with EPS seen at $4.87 and buybacks and a $233.65 breakout in focus.

TradingKey - Intel (INTC) shares are facing a fresh wave of selling, with losses widening to over 27% in Friday pre-market trading. If the decline holds through the close of regular trading, Intel will record its largest single-day drop since 1974—in roughly 52 years—and could see more than $100 billion in market capitalization erased.

Binance narrowly intercepted $3 billion, while BNB staged a strong V-shaped recovery to break above $700, with short-term targets pointing toward $800.

TradingKey - Intel stock forecast: INTC drops about 24% overnight as a weak Q4 guide outweighs 78% data center growth, putting $69.99 support to the test.

TradingKey - In US pre-market trading on October 30 ET, the US memory sector extended its decline from the previous session. Although SanDisk's latest quarterly results beat market expectations, overall weakness in tech stocks and market concerns over returns on AI infrastructure investment continued to weigh on memory-related stocks.

TradingKey - Micron Technology (MU) shares came under pressure again, closing down nearly 5% at $934.27, with after-hours prices falling further to around $903. Compared with the record high of around $1,250 set in June, the stock has pulled back approximately 25%, as the strong rally previously fueled by AI memory demand has noticeably cooled.