The Stock Market Bubble – January 2021 Update

This post is a brief update to various past commentaries concerning the stock market bubble, most notably the February 2020 page titled “The Immense Stock Market Bubble And Characteristics.”

Since February 2020, the stock market bubble has grown in size, which is highly notable given the enormous size of the bubble at that time. My analyses indicate that this stock market bubble is the largest stock market bubble ever in the United States. As well, another problematic aspect is that the stock market bubble is just one of many exceedingly large asset bubbles in existence. The existence of these astoundingly large asset bubbles poses a grave risk to the financial system and economy.

I have written extensively concerning the stock market bubble, its causes, and current and future consequences. It should be noted that a fully comprehensive discussion would be exceedingly lengthy and at times very complex. Perhaps the paramount aspects of this stock market bubble is that it is far larger than most conventional measures would suggest; and that the future consequences of the “bursting” of the bubble will be highly problematical on many fronts.

As stated in the February 2020 commentary, one of the foremost signs of asset bubbles is excessive sentiment. Excessive sentiment can manifest in many ways. The current stock market environment exhibits a broad array of excessively positive sentiment. This excessively positive sentiment is often referred to as excessive speculation or “froth.” The current stock market can be categorized as an epochal speculative mania.

In the February 2020 commentary I displayed a variety of long-term charts that depicted notable fundamental and technical measures. Below is an update to one of those charts, the XLK ETF, that shows the outsized price appreciation of perhaps the most overvalued market segment, technology.

Here is the XLK (technology) ETF since the year 2000, shown on a linear price scale (top plot) and a LOG scale (bottom plot):

(click on chart to enlarge image)(charts courtesy of; chart creation and annotation by the author)

Another indication of a highly elevated level of froth is the extreme excessive valuations and accompanying very rapid price advance of scores of individual stocks both in technology as well as other sectors.

As I have mentioned in previous commentaries, the “bursting” of this stock market bubble will have many adverse impacts. My analyses continue to indicate this popping of the bubble will occur during a crash.

As I have previously written, most recently in “The U.S. Economic Situation” updates:

My analyses continues to indicate that the growing level of financial danger will lead to the next stock market crash that will also involve (as seen in 2008) various other markets as well.  Key attributes of this next crash is its outsized magnitude (when viewed from an ultra-long term historical perspective) and the resulting economic impact.  This next financial crash is of tremendous concern, as my analyses indicate it will lead to a Super Depression – i.e. an economy characterized by deeply embedded, highly complex, and difficult-to-solve problems.


The Special Note summarizes my overall thoughts about our economic situation

SPX at 3798.91 as this post is written