
Allie Grace Garnett is a content marketing professional with a lifelong passion for the written word. She is a Harvard Business School graduate with a professional background in investment finance and engineering.
Doug is a Chartered Alternative Investment Analyst who spent more than 20 years as a derivatives market maker and asset manager before “reincarnating” as a financial media professional a decade ago.
Before joining Britannica, Doug spent nearly six years managing content marketing projects for a dozen clients, including The Ticker Tape, TD Ameritrade’s market news and financial education site for retail investors. He has been a CAIA charter holder since 2006, and also held a Series 3 license during his years as a derivatives specialist.
Doug previously served as Regional Director for the Chicago region of PRMIA, the Professional Risk Managers’ International Association, and he also served as editor of Intelligent Risk, PRMIA’s quarterly member newsletter. He holds a BS from the University of Illinois at Urbana-Champaign and an MBA from Illinois Institute of Technology, Stuart School of Business.

Are you familiar with the greater fool theory? Itâs a money concept that describes choosing an investment not because of its fundamental value, but because the investor expects someone else (a âgreater foolâ) to pay an even higher price for it.
The greater fools are those left âholding the bagâ after the savviest investors capture their profits. Nobody wants to be the greater foolâor the bag holderâwhen the performance of an investment starts to change.
Here are 10 mistakes that can leave you stuck holding the bagâand how to avoid them.
Chasing the high as a trader or investor means buying an asset thatâs already increased significantly in price, in hopes that the price will continue to riseâwhat technical analysts call âbuying on momentum.â But the investment may have only limited remaining upside potential. If momentum changes and the price declines, you may be among those who get left holding the bag.
Hereâs how to avoid chasing price highs as an investor:
Another way to get caught holding the investment bag is to be stubbornâor worse yet, in denialâabout a losing position. Stubborn traders try to recover a losing position by holding on or even adding to it. That mentality can turn a minor loss into a major one.
Losses are inevitable, but you donât have to ride them down, or worse, double down.
Uninformed investors are more likely to end up holding the bag than those who do their homework. Buying an asset without learning about its key characteristics can lead you to make portfolio decisions that are based on hype, speculation, or greedârather than the fundamental attributes of the asset.
Every investable asset has its own unique qualities, so youâll need to conduct plenty of your own research before adding any new investments to your portfolio. If youâre buying stocks, for example, then youâll want to study a companyâs financial statements and growth prospects, plus the prevailing industry trends.
Some investments are riskier than others, and buying too many of the riskiest assets can leave you holding the bag. Assets that are least safe typically have the greatest price volatility, the most credit risk, and the highest potential for being a scam. Crypto investing is particularly vulnerable to such dangers.
Avoid the unwanted side effects of investing in risky assets:
You may be an experienced stock and bond investor who knows nothing about cryptocurrencies. Adding crypto to your portfolio, without first becoming familiar with the asset class, can leave you holding the bag.
The obvious solution is to familiarize yourselfâthoroughlyâwith an asset class before investing any money. Stocks, bonds, cryptocurrencies, real estate, and other asset classes each have unique characteristics that you should study carefully before making any investment decisions.
Bag holding is frequently linked to speculative trading. Excited about the price of Bitcoin or other crypto asset? Convinced that a hot stock will continue to climb the charts? Youâre speculating, and you may well get left holding the bag.
Speculation can be extremely tempting. Hereâs good advice for avoiding it:
A pump-and-dump scheme is a classic example of an investment scam that can leave unsuspecting investors holding the bag. The âpumpâ occurs when malicious actors hype up an asset to artificially inflate its price, and the âdumpâ happens when the same malicious group suddenly sells their substantial holdingsâcausing the price to crash for everyone else.
Nobody likes to fall victim to pump-and-dump schemes. (Nor their crypto counterpart, the ârug pull,â in which a coinâs developers will hype it, then abruptly abandon or close it, leaving unsuspecting investors holding the bag.) You can minimize this risk by being skeptical of investment hype, performing your own investment research, and generally avoiding the most speculative assets.
If youâve ever been advised to diversify your investment portfolio, you know itâs partly to ensure that youâre not stuck holding too much of the bag if a stock, industry, or asset class has a change in fortune. Overconcentrating your portfolio is risky because it creates too much exposure to singular trends and events that may yield unwanted losses.
The opposite of overconcentration is diversificationâthe proverbial âspreading your eggs among many basketsâ strategy. Even if youâre only passionate about crypto, for example, you can still diversify by investing in a mix of first-generation coins, altcoins, crypto stocks, and crypto exchange-traded funds.
Nobel laureate Harry Markowitz famously said that âdiversification is the only free lunchâ in investing. Investing broadly and targeting such a âfree lunchâ sounds a lot more enticing than holding an empty lunch bag.
The fear of missing outâor FOMOâis real, and it can cause you to make regrettable investment decisions. If youâve ever berated yourself for not investing in a hot stock years earlier, you may be tempted to invest without conducting proper analysis or considering the associated risks. But beware of FOMO, lest you get stuck holding the bag.
The best ways to fight investing FOMO include:
Sometimes weâre our own worst enemiesâeven as investors. Confirmation bias in investing happens when you only evaluate and value information that supports your existing hypothesis, even if you encounter credible information that speaks to the contrary. Everyone can be swayed by confirmation bias, but doing so may result in you holding an unwanted investment bag.
How to avoid confirmation bias as an investor:
If youâre an active trader or investor, youâll likely be caught holding the bag at some point. Investing confers unavoidable financial risk that can be mitigated but not eliminated entirely. But you have strategiesâlike developing a diversified portfolio strategy, doing your own research, and not buying impulsivelyâto minimize bag-holding events (and the damage caused by an individual bag-holding event).
Stay focused on money goals that are meaningful to you, and donât get caught up in any FOMO frenzy. The market might be seeking a greater fool, looking to unload an empty bag.
This article was most recently revised and updated by Allie Grace GarnettThis article was most recently revised and updated by Doug Ashburn