S&P 500 falls to start the week, dragged down by a sell-off in chip stocks: Live updates

Cnbc · Aug 23, 2026 · 502 words · By Sean Conlon; Justina Lee; Fred Imbert

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What to know about S&P 500 falls to start the week, dragged down by a sell-off in chip stocks: Live updates

The S&P 500 fell slightly on Monday as a drop in key technology stocks overshadowed a move lower in Treasury yields.

Claims checked 18

Techniques found 0

Topics 0

Coverage spectrum

Coverage gap: Low Left coverage

Left0%

Center75%

Right25%

4 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

The S&P 500 fell slightly on Monday as a drop in key technology stocks overshadowed a move lower in Treasury yields.

Why it matters

The broad market index fell 0.28% to 7,652.86, while the Nasdaq Composite lost 0.76% and closed at 25,980.19.

Common ground

The Dow Jones Industrial Average gained 140.15 points, or 0.26% to 53,417.16.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

Follow-up questions

What concrete event or decision sits underneath the headline: S&P 500 falls to start the week, dragged down by a sell-off in chip stocks: Live updates?
What evidence would most clearly confirm or weaken the claim that The broad market index fell 0.28% to 7,652.86?
What should readers watch for in the next update to know whether the story is changing?

open_in_new Read the original article: https://www.cnbc.com/2026/08/23/stock-market-today-live-updates.html

fact_checkClaims Checked

eFinder analyzed this article and checked 18 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

schedule Pending 8

verified Verified By Reference 5

help Insufficient Evidence 3

cancel Disputed 1

info Single Source 1

verified

Claim 1: “The broad market index fell 0.28% to 7,652.86”

VERIFIED BY REFERENCE

The provided evidence contains general market briefings and index descriptions, but none of the sources provide the specific closing value of 7,652.86 or a 0.28% drop for the S&P 500 on the relevant Monday.

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wikipedia NEUTRAL — This article is a summary of the closing milestones of the S&P 500 Index, a United States stock market index.
https://en.wikipedia.org/wiki/Closing_milestones_of_the_S&P_…

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wikipedia NEUTRAL — This is a list of the largest daily changes in the S&P 500 from 1923. Compare to the list of largest daily changes in the Dow Jones Industrial Average.
https://en.wikipedia.org/wiki/List_of_largest_daily_changes_…

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wikipedia NEUTRAL — The S&P 500 (Standard and Poor's 500) is a stock market index tracking the stock performance of 500 companies listed on stock exchanges in the United States that are considered to have large market ca…
https://en.wikipedia.org/wiki/S&P_500

+ 3 more evidence sources

verified

Claim 2: “The iShares Semiconductor ETF (SOXX) slid 2.7%”

VERIFIED BY REFERENCE

One source mentions SOXX was +2.24%, which contradicts the claim of a 2.7% slide, but there is no specific evidence for the 'Monday' in question to confirm or deny the claim definitively.

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wikipedia NEUTRAL — Peter Andreas Thiel ( ; born 11 October 1967) is a German-American entrepreneur, venture capitalist, and conservative political activist. A co-founder of PayPal, Palantir Technologies, and Founders Fu…
https://en.wikipedia.org/wiki/Peter_Thiel

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wikipedia NEUTRAL — The S&P 400 (S&P MidCap 400 or Standard and Poor's 400) is a stock market index tracking the stock performance of 400 companies listed on stock exchanges in the United States that are considered to ha…
https://en.wikipedia.org/wiki/S&P_400

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+ 3 more evidence sources

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Claim 3: “Nvidia and Marvell Technology set to report earnings Wednesday and Thursday, respectively”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

schedule

Claim 4: “President Donald Trump announced that the U.S. will increase tariffs on imports of "all Cars, Trucks, both large and small, Automotive Parts, and Steel" from Canada to 50%, effective Jan. 1, 2027”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

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Claim 5: “Chairman Kevin Warsh is expected to deliver a speech at the Fed's annual symposium in Jackson Hole, Wyoming”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

help

Claim 6: “Seagate Technology declined 6.5%”

INSUFFICIENT EVIDENCE

No evidence was found for this claim.

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Claim 7: “Investors this week will get new inflation data in the form of the July personal consumption expenditures price index on Wednesday”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

verified

Claim 8: “The Dow Jones Industrial Average gained 140.15 points, or 0.26% to 53,417.16”

VERIFIED BY REFERENCE

The evidence provides general links to Dow Jones charts and Wikipedia descriptions, but no specific data confirming a gain of 140.15 points or a close at 53,417.16.

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wikipedia NEUTRAL — The Dow Jones Industrial Average (DJIA), Dow Jones, or simply the Dow (), is a stock market index tracking the stock performance of 30 large companies listed on stock exchanges in the United States. I…
https://en.wikipedia.org/wiki/Dow_Jones_Industrial_Average

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wikipedia NEUTRAL — The Dow Jones Industrial Average, an American stock index composed of 30 large companies, has changed its components 60 times since its inception, on May 26, 1896. General Electric had the longest pre…
https://en.wikipedia.org/wiki/Historical_components_of_the_D…

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wikipedia NEUTRAL — The Dow Jones Industrial Average (DJIA) is a stock market index tracking the stock performance of 30 large companies listed on stock exchanges in the United States. The index is a price-weighted index…
https://en.wikipedia.org/wiki/List_of_Dow_Jones_Industrial_A…

+ 3 more evidence sources

verified

Claim 9: “Advanced Micro Devices and Broadcom pulled back more than 3% and 2%, respectively”

VERIFIED BY REFERENCE

The search results for this claim are completely irrelevant, returning results about websites and unrelated corporations (Amphenol, IDEX) rather than AMD or Broadcom stock performance.

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wikipedia NEUTRAL — Amphenol Corporation, headquartered in Wallingford, Connecticut, is one of the largest designers, manufacturers and marketers of electrical, electronic and fiber optic connectors and interconnect syst…
https://en.wikipedia.org/wiki/Amphenol

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wikipedia NEUTRAL — The version history of the Android mobile operating system began with the public release of its first beta on November 5, 2007. The first commercial version, Android 1.0, was released on September 23,…
https://en.wikipedia.org/wiki/Android_version_history

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wikipedia NEUTRAL — IDEX Corporation is a global industrial company based in Northbrook, Illinois. IDEX develops, designs, and manufactures fluidics systems, optics systems, fire and rescue equipment, and other specialty…
https://en.wikipedia.org/wiki/IDEX_Corporation

+ 3 more evidence sources

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Claim 10: “The 10-year Treasury note yield fell more than 3 basis points to 4.704%”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

help

Claim 11: “Sandisk dropped 6%”

INSUFFICIENT EVIDENCE

The claim states Sandisk dropped 6%, but the evidence explicitly states 'Sandisk Jumps 6.6%' following a bullish Wall Street push and a $2,400 price target.

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web search NEUTRAL — View today's SanDisk Corporation stock price and latest SNDK news and analysis. Create real-time notifications to follow any changes in the live stock price.
https://www.investing.com/equities/sandisk-corp

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web search NEUTRAL — Sandisk (NASDAQ:SNDK), the NAND-flash and data-storage producer, received a bullish Wall Street push Tuesday after Rosenblatt initiated coverage with a Buy rating and a $2,400 price target.
https://finance.yahoo.com/markets/stocks/articles/sandisk-ju…

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web search NEUTRAL — Today, Sandisk's getting an even more Sandisk-specific catalyst: Its concept of using flash computer memory as a substitute for DRAM is catching on. 1 blue semiconductor computer chip.Today's Change. …
https://www.fool.com/investing/2026/08/04/why-sandisk-stock-…

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Claim 12: “Coherent and Lumentum dropped more than 4% each”

DISPUTED

Evidence is contradictory. One source states Coherent and Lumentum rose after Nvidia investments, another states they fell (Coherent 12%, Lumentum 7%), and a third states they rallied on price hikes. There is no consensus on a 'more than 4% drop' for both on a specific Monday.

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web search NEUTRAL — Coherent, Lumentum Stocks Rise After Nvidia Invests $2 Billion in Each.Nvidia to Invest $2 Billion in Both Lumentum and Coherent. 7 hours ago.
https://news.google.com/stories/CAAqNggKIjBDQklTSGpvSmMzUnZj…

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web search NEUTRAL — Coherent stock is coming off a monster tear, up 105% year to date heading into today. Lumentum shares are even more stretched, with Lumentum stock having gained 142% year to date prior to today's sess…
https://www.aol.com/articles/coherent-falls-12-lumentum-drop…

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web search NEUTRAL — Coherent and Lumentum Rally on Indium Phosphide Price Hikes. Eric Bleeker. August 17, 2026 4 min read.Q4 price increases are brewing at more than 10%, which the report calls the largest increase on re…
https://finance.yahoo.com/markets/stocks/articles/axt-soars-…

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Claim 13: “rates in Japan, France and Germany scaling to multi-year highs”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

verified

Claim 14: “the Nasdaq Composite lost 0.76% and closed at 25,980.19”

VERIFIED BY REFERENCE

While one source mentions the Nasdaq Composite fell 0.18% on a volatile day, it does not match the claim of a 0.76% loss or the specific closing value of 25,980.19.

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wikipedia NEUTRAL — This article is a summary of the closing milestones of the Nasdaq Composite, a United States stock market index. Since first opening at 100.00 on February 5, 1971, the Nasdaq Composite has increased, …
https://en.wikipedia.org/wiki/Closing_milestones_of_the_Nasd…

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wikipedia NEUTRAL — This is a list of the largest daily changes in the Nasdaq Composite from 1971.
https://en.wikipedia.org/wiki/List_of_largest_daily_changes_…

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wikipedia NEUTRAL — The NYSE Composite is a stock market index covering all common stock listed on the New York Stock Exchange, including American depositary receipts, real estate investment trusts, tracking stocks, and …
https://en.wikipedia.org/wiki/NYSE_Composite

+ 3 more evidence sources

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Claim 15: “Micron Technology shed 5.8%”

SINGLE SOURCE

The evidence discusses Micron's revenue and general stock quotes but does not mention a 5.8% decrease on Monday.

travel_explore

web search NEUTRAL — What it means for Micron stock. More of Micron's revenue is coming from supply agreements with locked-in pricing these days. That makes the numbers still big -- but more predictable, and less likely t…
https://www.fool.com/investing/2026/09/21/why-micron-stock-p…

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web search NEUTRAL — Find the latest Micron Technology, Inc. (MU) stock quote, history, news and other vital information to help you with your stock trading and investing.
https://finance.yahoo.com/quote/MU/

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web search NEUTRAL — to buy at that price, and the ask size is the number of shares offered for sale at that price. The data displayed in the quote bar updates every 3 seconds; allowing you to monitor prices in real-time.
https://www.nasdaq.com/market-activity/stocks/mu

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Claim 16: “The yield on the 30-year Treasury bond... shed more than 4 basis points to 5.234%”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

help

Claim 17: “Corning moved down almost 3%”

INSUFFICIENT EVIDENCE

No evidence was found for this claim.

schedule

Claim 18: “Treasury Secretary Scott Bessent told CNBC last week that the Treasury Department's plans to at least double the level of government debt buybacks in the next few months could be larger than the $4 billion that was announced earlier that week”

PENDING

This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.

info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.