2020–2021 correlated bubble in asset prices
Wikipedia
en.wikipedia.org › wiki › Everything_bubble
Everything bubble - Wikipedia
November 25, 2025 - At the end of January 2021, The Wall Street Journal wrote that: "For once, everyone seems to agree: Much of the market looks like it's in a bubble", while Goldman Sachs said that the S&P 500 was at or near its most expensive levels in history on most measures, with the forward EV/EBITDA breaking ...
NYTimes
nytimes.com › 2025 › 10 › 14 › opinion › ai-bubble-stock-market-tech-stocks.html
Opinion | Warning: Our Stock Market Is Looking Like a Bubble
October 15, 2025 - Cummings served the council as an economist from 2021 to 2023. You may remember the recession that followed the collapse of dot-com stocks in 2001. Or, worse, the housing crisis of 2008. Both times, a new idea — the internet, mortgage-backed securities and the arcane derivatives they unleashed — convinced investors to plunge so much money into the stock market that it inflated two speculative bubbles whose inevitable bursting created much economic pain.
Videos
So is there a market bubble? A comparison of 1999 and 2025
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BREAKING: The Largest Bubble In Stock Market History - YouTube
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AI market bubble concerns grow, plus the government shutdown & ...
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The Stock Market Is Overvalued, Here's What I'm Doing Now - YouTube
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AI-fueled market bubble concerns emerge as Big Tech companies invest ...
Are markets in bubble territory? This strategist says yes.
SSRN
papers.ssrn.com › sol3 › papers.cfm
India’s Stock Market Bubble 2021: Signs and Causes by Tanushree Gupta, Avichal Sharma :: SSRN
December 14, 2021 - The paper discusses India’s stock market bubble 2021 and provides the reasons for the same: decentralization of firms from China, increase in the rate of vaccination, India’s monetary and fiscal policy during the pandemic along with the welfare assistance provided to the public.
Acadian Asset Management
acadian-asset.com › investment-insights › owenomics › brokers-and-bubbles
Brokers and bubbles | Acadian Asset Management
November 14, 2025 - Looking at the COVID-era bubble peaking in December 2021, Robinhood’s IPO was July 2021. So far in 2025, we’ve seen two retail brokers go public in the U.S. (eToro via IPO in May 2025 and Webull via SPAC in April 2025), not counting the wave of crypto-related IPOs flooding the stock market.
Reddit
reddit.com › r/stocks › in the 2040's and beyond, november 2021 will be remembered as the pop of the second tech bubble.
r/stocks on Reddit: In the 2040's and beyond, November 2021 will be remembered as the pop of the Second Tech Bubble.
September 22, 2022 -
Some tech stocks are down 60-80%+, it is affecting the micro and nano cap tech stocks with no revenue all the way up to the highly profitable tech stocks like Meta. In business and economic classes in university and high schools in the 2040's and beyond there will be case studies about the November 2021 tech Bubble pop which was brought on by the end of the pandemic and was the result of millions of first-time retail investors being brought to the market by no fee trading apps like Robinhood in 2020. But investors buying those tech stocks that eventually survive the bubble and thrive will be millionaires when the next bull market comes around.
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The everything bubble
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I agreed until you said buying those that survive will be millionaires. When bubbles pop, the speculative names that propelled the bubble don’t typically go to absurdly cheap valuations, they revert to fair valuations and generate average returns. The sentiment you described is bubble speak. It is precisely the idea that stocks are going to make you a millionaire that is the reason bubbles form in the first place. It is always true that there is a stock out there that will increase a thousand fold in 5-10 years. But good luck picking it. Saying buy tech stocks, they’ll make you a millionaire is what people say in the midst of a bubble.
Fortune
fortune.com › 2021 › 10 › 05 › stock-market-bubble-popping-october-2021-outlook
Is this the sound of a stock market bubble popping? | Fortune
October 6, 2021 - The popping of the tech bubble sent the S&P 500 tumbling 45% from mid-2000 to late 2002. This time, the damage is likely to be a lot less disastrous, but still moderately severe. So instead of calling today’s scenario a bubble market, I’ll invent a new B-term, and label it the Boxed-In Market.
CNBC
cnbc.com › 2021 › 06 › 29 › veteran-investor-david-roche-says-the-market-bubble-will-come-to-an-end-.html
Top investment strategist David Roche warns the Fed could burst a market 'bubble'
June 29, 2021 - U.S. Markets ... The flagship U.S. stock index on Friday chalked up its strongest week since February. This despite the rapid spread of the highly contagious new variant and lingering concerns over whether the U.S. Federal Reserve will be forced to scale back its unprecedented stimulus program. Veteran investor David Roche said current valuations were a "bubble."
St. Louis Fed
stlouisfed.org › on-the-economy › 2021 › february › not-all-bursting-market-bubbles-same-recessionary-effect
Not All Bursting Market Bubbles Have the Same Recessionary Effect
December 9, 2021 - The average correlation between the IT sector and the other market sectors is roughly zero (indicating no correlation) during the 2001 recession, but above 0.9 for most of 2008 (indicating a very high positive correlation). Similarly, the average correlation between the real estate sector and other sectors is roughly zero during 2001 and about 0.9 during 2008. The figure below shows the correlations between the real estate sector and the other 10 sectors. This suggests that the burst of the IT bubble did not cause contagion across sectoral stock values, but that the collapse of the real estate bubble generated a huge contagion effect across sectoral stocks.