You Must Know: What Is Froth in Investing?


Triston Martin

Dec 29, 2023


When asset prices begin to diverge from their underlying values because demand for those assets drives prices to unsustainable levels, the market is said to be in a condition of "froth," which is a precursor to a true bubble. A bubbly market is one in which investors pay more for a given asset than the asset is worth, ignoring the market's underlying fundamentals. Overconfident investors are a telltale sign that certain market participants are letting their emotions dictate their actions and the value of their investments.

Definition and Examples of Froth

In investing, "froth" refers to an asset's price that has risen to unsustainable due to investor demand. Froth is often the catalyst that sets the stage for a market bubble to arise. If the market bubble were to collapse, prices would fall precipitously and in a short period, which is why investors are worried about them. Then-Federal Reserve Chairman Alan Greenspan testified in 2005, "evidence of froth in some local markets where property values seem to have climbed to unsustainable levels."

For Greenspan, it was all about the real estate sector. Greenspan was first sceptical of the existence of a nationwide housing bubble. He worried that interest-only and adjustable-rate mortgages encouraged people to buy homes they couldn't afford. The housing market peaked in July of 2006 and has been steadily declining. A study by S&P and Case-Shiller of the U.S.

The National Home Price Index has declined for the past 32 consecutive months. Many risky loans that were made during the frothy market time ultimately defaulted. The typical practice of bundling these loans into mortgage-backed securities led to hundreds of billions of dollars in losses. The housing bubble that had previously existed was a major contributing factor to the worldwide financial catastrophe that began in the fall of 2008. The years leading up to the bursting of the dot-com bubble in 2000 are another example of a market that became overheated. During the mid-1990s, investors poured a lot of money into technological companies, including doomed internet startups like The technology-focused Nasdaq index hit a record high of 5,048.62 on March 10, 2000, before starting a steady decline.

How Market Froth Works

The term "froth" describes an asset's value that has risen unnaturally. An overheated and inflated market often creates a bubble that will eventually burst. However, a bubble in the market or an asset price cannot be conclusively proven by price increases alone. Asset price inflation that isn't supported by underlying economic fundamentals is a classic case of froth. Due to this, it isn't easy to keep up with such steep price increases permanently.

Greenspan called the increase in prices "irrational exuberance," and this sentiment often serves as the impetus. Access to cheap capital and widespread belief that a current trend, such as the rapid appreciation of technology stocks in the 1990s or the price appreciation of homes in the early 2000s, are common signs of foam in a market. If prices drop first, and people's ability to get their hands on cash is curtailed, we might see an even steeper price decline.

Recognizing Real Estate Market Bubbles

Sketchy Loans Are Common

The Great Recession of 2008 shows that subprime lending is not a sustainable economic strategy. Lending money to would-be homeowners who do not satisfy the criteria for conventional loans might increase the chance of default. Nonetheless, the United States federal government continues to guarantee loans that some may perceive as high risk. These mortgages are insured by the Federal Housing Administration (FHA). Thus the borrower only needs to put down 3.5% of the purchase price. However, FHA loans have stricter underwriting requirements than most low-down-payment programmes in the early 2000s.

There's Lots of Leverage at Work

A mortgage borrower is essentially spending their money in a leveraged fashion. A low anticipated down payment from many potential buyers suggests they plan to utilize the financing offered by the lender as a form of leverage in the acquisition. Higher property prices may result from more competition among buyers due to looser lending standards, such as lower minimum down payments. As buyers hurry to find suitable properties, this might also increase the number of foreclosures.

Salaries Aren't Keeping Pace With Home Prices

It's a sign of foam in the market when home prices rise while wages remain stable. If this sounds like the housing market in your area, it might be better to wait before making a big purchase like a house, especially if you're already stretching your budget to the limit. You shouldn't have to spend much more if you wait to make a purchase as long as the terms of credit granted by bank lenders remain stringent.

Interest Rates Rise

There may be foam if the housing market crashes as interest rates rise. For instance, the housing market will undoubtedly suffer if interest rates suddenly increase by one percentage point.


High prices alone are not necessarily indicative of froth. Instead, foam is indicative of unsustainable price increases. The market will collapse if fundamentals are not strong enough to back up price increases. The fundamentals of an asset are the rudimentary quantitative and qualitative information necessary for forming an investment opinion. Researching a company's earnings, sales, assets, liabilities, and growth prospects is essential before buying stock. It is uncertain whether or not this type of research will pick up foam as it forms. However, it can be helpful to investors because it can serve as a guide and assist them in avoiding the excessive exuberance common in overpriced markets.


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