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Intel shares fell about 9% Monday after a steep drop on Oct. 30, while chip and memory stocks broadly declined despite gains across much of the S&P 500. Yahoo Finance calculated that the group lost more than $400 billion in market value that session and about $3.7 trillion since Oct. 6; AMD’s quarterly results were due Tuesday after the bell.
Intel shares fell about 9% Monday as losses spread across chip and memory stocks, even though about seven in 10 S&P 500 stocks rose. The sector shed more than $400 billion in market value in one session, according to Yahoo Finance calculations, and its losses since Oct. 6 reached about $3.7 trillion.
Monday’s decline extended Intel’s sharp slide following its Oct. 30 forecast, which disappointed investors and sent the stock down nearly 29% in its worst day since 1974. At Monday’s close, Intel was worth less than half its value at the end of September, according to the report. The figures describe market value and share-price performance; they do not by themselves establish why investors sold on Monday.
The weakness reached memory and storage companies that had been among the year’s chip-boom leaders. Micron, Sandisk, Seagate and Western Digital fell roughly 6% to 8%, while Marvell dropped more sharply. Marvell’s fall came as it agreed to buy Lumentum in a deal valued at $115 billion, according to the source report.
Nvidia performed better than many peers during Monday’s session, but Yahoo Finance said it remained down about 16% since Oct. 6. Across the broader period, Nvidia had lost the most market value in dollar terms, while Intel’s decline of nearly half was the steepest among the large chip companies cited in the report.
Chip Losses Reach Beyond Intel
The contrast between a rising majority of S&P 500 stocks and falling chip shares points to a sector-specific strain, rather than a uniformly weak session for the broader market. The reported $400 billion-plus one-day loss shows how quickly a concentrated decline in large technology companies can weigh on market value, even when many other stocks advance.
The downturn also affects companies tied to different parts of the hardware chain, from processors and AI accelerators to memory and storage. That breadth matters to investors trying to distinguish company-specific setbacks from a wider reassessment of chip-sector expectations. However, the market-value estimates are not measures of money withdrawn from the sector, and the report does not establish a single cause for the sell-off.
Intel’s steep fall is a particular signal of investor concern about its outlook after the company’s forecast triggered a major one-day loss. Whether that pressure eases may depend in part on company results and guidance, as well as whether declines among other chipmakers continue.
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From October Forecast to Sector Sell-Off
The immediate turning point for Intel in the report was Oct. 30, when its disappointing forecast was followed by a nearly 29% share-price decline. Monday’s additional fall left the stock below half its value at the end of September. The source does not provide the forecast’s detailed figures or a company statement explaining Monday’s trading.
Yahoo Finance calculated that chip and memory stocks had lost about $3.7 trillion in market value since Oct. 6. The estimate covers a wider span than Monday’s session, when the group shed more than $400 billion by the publication’s calculation. Those amounts are reported estimates, not independently verified figures in the supplied material.
Not all technology-related shares moved together. The report said software was mixed, while cybersecurity names Fortinet and CrowdStrike fell alongside chips. It also noted that SpaceX rose on Monday but remained below its level at the start of October. This variation cautions against treating the session as a decline across every company associated with technology or AI.
Causes and Market Bottom Remain Unknown
The supplied report documents the size and spread of the declines but does not establish one definitive cause for Monday’s losses across chip and memory stocks. It also does not include detailed commentary from Intel or the other companies on the share-price moves, or enough information to determine how much investors’ expectations changed after Intel’s forecast.
Johnson’s view that the market may have priced in the worst is a market opinion, not evidence that the sell-off has ended. Historical performance offers no guarantee of future returns: Yahoo Finance calculated that chips rose in all eight midterm cycles since 1994 from the last October close through the following June, but in 2002 and 2018 they first fell about another 11%. The source does not specify how that historical sample compares with current market conditions.
The report also leaves open how the proposed Marvell-Lumentum deal may affect the companies and whether further declines will extend across the sector. Monday’s figures cannot answer whether the sell-off reflects temporary repositioning, changed earnings expectations, or a mix of factors.
AMD Results Put Focus on Guidance
AMD was due to report third-quarter results Tuesday after the bell, making the release the next scheduled company-specific event identified in the report. Investors will be able to compare the company’s reported results and outlook with expectations, though the source does not provide forecasts or say what figures the market will focus on.
Trading in Intel and other chip stocks will show whether Monday’s broad declines persist, but a single session cannot establish a lasting direction. The proposed Marvell-Lumentum transaction is another development to follow; the supplied material does not give a completion timetable or further deal conditions. Until companies publish results or more detail, the reasons for the wider retreat and its duration remain unsettled.
Key Questions
How much did Intel stock fall Monday?
Intel fell about 9% on Monday, according to the Yahoo Finance report. That followed a nearly 29% drop on Oct. 30 after a disappointing forecast.
How much value did chip stocks lose?
Yahoo Finance calculated that chip and memory stocks lost more than $400 billion in market value during Monday’s session and about $3.7 trillion since Oct. 6. These are estimates reported by the publication.
Did all technology stocks fall?
No. The report said about seven in 10 S&P 500 stocks rose Monday and software shares were mixed. Chip stocks fell broadly, while cybersecurity companies Fortinet and CrowdStrike also declined.
What is the next scheduled event for the chip sector?
AMD’s third-quarter results were scheduled for Tuesday after the bell. The source did not provide expected results or guidance figures.
Does the historical midterm pattern mean chip stocks will recover?
No. Yahoo Finance calculated that chips rose in all eight midterm cycles since 1994 over the period it measured, but reported further initial declines in 2002 and 2018. Historical performance does not establish what will happen in the current downturn.
Source: finance.yahoo.com
