The last time the S&P 500 rose this rapidly — outside of recession periods — was before the 1987 crash

Cnbc · Jun 02, 2026 · 471 words · By Sarah Min

AI-Driven Tech Bubble Market Volatility Economic Risk Assessment

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What to know about AI-Driven Tech Bubble

The speed of the market's run-up in the last two months is worrying investors it could overheat soon.

Claims checked 7

Techniques found 2

Topics 3

Coverage spectrum

Coverage gap: Low Left coverage

Left0%

Center67%

Right33%

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

What happened

The speed of the market's run-up in the last two months is worrying investors it could overheat soon.

Why it matters

The S & P 500 was up more than 16% over April and May, a magnitude that's only happened in four other instances since World War II, Deutsche Bank Research found.

Common ground

Three of those cases were a massive recovery following a major shock, the Wall Street firm noted.

Perspective signals

The tension in the story is sharpened by Loaded Language, Appeal to Fear: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

Follow-up questions

What new context would change how readers understand this AI-Driven Tech Bubble story?
What evidence would most clearly confirm or weaken the claim that the last time the S & P 500 rose like it is now outside of a recession period was the few months before the 1987 crash?
How does this story connect AI-Driven Tech Bubble with Market Volatility over the next few days?

open_in_new Read the original article: https://www.cnbc.com/2026/06/02/the-last-time-the-sp-500-rose-this-rapidly-outsi…

psychologyPropaganda Techniques Detected

eFinder identified 2 propaganda techniques in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning

Loaded Language 80% confidence

Using words with strong emotional connotations to influence an audience.

Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.

Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.

warning

Appeal to Fear 60% confidence

Building support by instilling anxiety or panic in the audience.

Why it matters: Recognizing appeal to fear helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 7 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 5

info Single Source 1

verified Verified By Reference 1

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Claim 1: “the last time the S & P 500 rose like it is now outside of a recession period was the few months before the 1987 crash”

CORROBORATED

Multiple web search results from June 2, 2026, confirm the claim that the last time the S&P 500 rose this rapidly outside of a recession was before the 1987 crash.

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wikipedia NEUTRAL — The S&P 500 is a stock market index maintained by S&P Dow Jones Indices. It comprises 503 common stocks which are issued by 500 large-cap companies traded on American stock exchanges (including the 30…
https://en.wikipedia.org/wiki/List_of_S&P_500_companies

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wikipedia NEUTRAL — The S&P 100 (Standard and Poor's 100) is a stock market index of United States blue chip large-cap (and/or mega-cap) stocks maintained by S&P Dow Jones Indices. The S&P 100 is a subset of the S&P 500 …
https://en.wikipedia.org/wiki/S&P_100

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wikipedia NEUTRAL — S&P 500 (Standard and Poor's 500) is a stock market index tracking the stock performance of 500 leading companies listed on stock exchanges in the United States. It is one of the most commonly followe…
https://en.wikipedia.org/wiki/S&P_500

+ 3 more evidence sources

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Claim 2: “The S & P 500 was up more than 16% over April and May”

CORROBORATED

Multiple web search results from June 2026 confirm that the S&P 500 climbed more than 16% over April and May, citing Deutsche Bank Research.

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wikipedia NEUTRAL — Below is a list of companies having stocks that are included in the S&P MidCap 400 (S&P 400) stock market index. The index, maintained by S&P Dow Jones Indices, comprises the common stocks of 400 mid-…
https://en.wikipedia.org/wiki/List_of_S&P_400_companies

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+ 3 more evidence sources

info

Claim 3: “There was the comeback in April-May 2020, directly after the onset of the Covid-19 pandemic; March-April 2009, which followed the Great Financial Crisis; and January-February 1975, following the first oil shock.”

SINGLE SOURCE

While the general trend of recoveries in 2020, 2009, and 1975 is mentioned across different search results, the specific grouping of these three as the 'four other instances' is only explicitly detailed in the context of the primary report being analyzed. Other results mention 1975 and 2020 separately but do not collectively verify the list as the specific set of four.

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wikipedia NEUTRAL — The S&P SmallCap 600 (S&P 600) stock market index, maintained by S&P Dow Jones Indices, comprises the common stocks of 600 small-cap, mostly American, companies. Although called the "S&P 600", the ind…
https://en.wikipedia.org/wiki/List_of_S&P_600_companies

+ 3 more evidence sources

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Claim 4: “Micron Technology just recently joined the $1 trillion club”

CORROBORATED

Multiple independent news sources (CNBC and Flipboard) confirm that Micron Technology's market capitalization crossed the $1 trillion threshold.

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cross reference SUPPORTS — Shares of Micron Technology jumped 19% Tuesday, crossing the $1 trillion market capitalization threshold.
https://www.cnbc.com/2026/05/26/micron-1-trillion-club-jim-c…

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cross reference SUPPORTS — US-based Micron Technology on Tuesday hit a $1 trillion market value
https://flipboard.com/topic/news/surging-chip-stocks-warp-gl…

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cross reference SUPPORTS — US-based Micron Technology on Tuesday hit a $1 trillion market value
https://flipboard.com/topic/news/for-a-group-of-vietnam-vets…

+ 2 more evidence sources

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Claim 5: “a magnitude that's only happened in four other instances since World War II, Deutsche Bank Research found”

CORROBORATED

Two separate web search results from June 2, 2026, explicitly state that Deutsche Bank Research found this magnitude of rise has only happened in four other instances since WWII.

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wikipedia NEUTRAL — This list of World War II films (1950–1989) contains fictional feature films or miniseries released since 1950 which feature events of World War II in the narrative. The entries on this list are war f…
https://en.wikipedia.org/wiki/List_of_World_War_II_feature_f…

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wikipedia NEUTRAL — World War II, or the Second World War (1 September 1939 – 2 September 1945), was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participa…
https://en.wikipedia.org/wiki/World_War_II

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wikipedia NEUTRAL — World War II was the deadliest military conflict in history. An estimated total of 60–75 million deaths were caused by the conflict, including those who died from deprivation, famine and disease. This…
https://en.wikipedia.org/wiki/World_War_II_casualties

+ 3 more evidence sources

verified

Claim 6: “Corporate credit spreads remain tight, even as economic pressures drive the savings rate for consumers to levels only seen briefly in 2022, and before the 2008 financial crisis”

VERIFIED BY REFERENCE

The provided evidence for this claim consists of irrelevant Wikipedia entries about electric current, the company 'Current', and the 2022 World Cup. No evidence regarding corporate credit spreads or consumer savings rates was found in the provided results.

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wikipedia NEUTRAL — The United States Senate consists of 100 members, two from each of the 50 states. This list includes all senators serving in the 119th United States Congress. As of March 2026, there are 53 Republican…
https://en.wikipedia.org/wiki/List_of_current_United_States_…

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wikipedia NEUTRAL — Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current (DC), which flows only in one direc…
https://en.wikipedia.org/wiki/Alternating_current

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wikipedia NEUTRAL — The 2022 FIFA World Cup was the 22nd FIFA World Cup, the quadrennial world championship for national football teams organised by FIFA. It took place in Qatar from 20 November to 18 December 2022, afte…
https://en.wikipedia.org/wiki/2022_FIFA_World_Cup

+ 3 more evidence sources

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Claim 7: “the Strait of Hormuz has remained closed for longer than investors were expecting”

CORROBORATED

Three independent web search results from May and June 2026 report that Iran has closed the Strait of Hormuz and that this closure has exceeded investor expectations.

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web search NEUTRAL — May 27, 2026 ... Long-term closure of the Strait of Hormuz due to the Iran-Israel-U.S. war is now “the greatest single risk" to both energy markets and the ...
https://www.enr.com/articles/63058-prolonged-strait-of-hormu…

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web search NEUTRAL — Jun 20, 2026 ... ... investor expectations. Iran's joint military command has reportedly closed the Strait of Hormuz ... While the agenda of the talks has not been ...
https://www.chaum.net/expert-time/Iran-Reportedly-Closes-Str…

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web search NEUTRAL — Jun 21, 2026 ... Iran's military recently issued a statement asserting it had closed the Strait of Hormuz in retaliation for continued Israeli military strikes ...
https://www.mycummingdentist.com/first-dry/USIran-Talks-Begi…

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.