Glossary
Fear of Missing Out (FOMO)
FOMO investing is buying because everyone else is, at the moment everyone else is buying - the group chat euphoria, the barbecue tip, the auction fever. It is the entry price paid at the top, and the cycles record the tuition.
What it is
FOMO investing is buying driven by other people's gains rather than by the asset. The triggers are the friend who doubled their money, the group chat on the same small cap, and the auction where everyone else is bidding. The social proof feels like research, and the timing it produces is the problem. The highest inflows arrive at the highest prices, because that is when everyone else is already in.
MoneySmart's guidance on crypto and investment hype makes the same point in regulator language. If an investment is being promoted heavily, the promotion is usually priced in, and scams recruit through exactly this door. In Australia the cycles repeat - crypto in 2021, the meme-stock rallies, the auction seasons. Each one recruits the same cohort at the same point in the price. The asset is rarely the decision; the mood is.
Key takeaways
- FOMO investing is buying driven by other people's gains, not the asset - social proof wearing a strategy's clothes.
- The highest inflows arrive at the highest prices, because that is when everyone else is already in.
- A written plan executed on payday beats the group chat executed at the top.
- Every crypto trade is a CGT event, and the ATO data-matches the exchanges either way.
- The recovery maths is asymmetric: a 50 percent fall needs a 100 percent gain.
How it works
The mechanism is a social proof loop: the gain is observed, the observer buys, the buying pushes the price, and the higher price recruits the next observer. The loop runs fastest at the top, which is why the highest inflows and the highest prices arrive together. Nothing in the loop contains information about the asset's future; it contains information about the crowd's present, and the crowd is fully invested by the time the loop reaches you.
The arithmetic is where the mood becomes expensive. $15,000 put into a crypto token at the November 2021 peak followed a drawdown of more than 70 percent; the position was worth roughly $4,500 a year later, and the recovery to the entry price needed a gain of more than 230 percent. The same $15,000 on a 12-month dollar-cost averaging schedule averaged into the same fall and needed far less of the recovery to break even. The dollar-cost averaging entry covers the schedule mechanics.
The property version runs through the auction. Bidding $40,000 over budget in a 78 percent clearance weekend adds roughly $2,400 a year of interest on an $800,000 loan at 6 percent, and the price paid for the mood compounds for the life of the loan. The house affordability calculator prices the loan the overbid becomes, and the mood is not an input to any of its fields.
Why it matters
For an Australian reader, FOMO is the reason the crypto position was bought in November 2021 and the reason the auction budget became negotiable on the day. The ATO's crypto data-matching program means the trades are visible to the tax office whether or not the mood remembers them, and every disposal is a CGT event with its own paperwork. MoneySmart's scam warnings run through the same door: the promotion is the pitch, and the pitch arrives when the price is highest. The capital gains tax entry covers the reporting, and the mood does not file the return.
A colleague named Brent (yes, that Brent) put $12,000 into a token after a barbecue tip in late 2021, sold at a $7,000 loss two years later, and discovered the CGT event needed reporting either way. The tip was historic, not forward, and the sale still owed the tax office its arithmetic. The highest-leverage thing most Australians can do is write the plan before the group chat starts: a fixed monthly amount into a diversified asset, executed on payday, with a rule for the hype. The dollar-cost averaging entry is the plan.
Real-world examples
$15,000 into crypto at the 2021 peak versus a 12-month schedule
The lump sum at the November 2021 peak followed a drawdown of more than 70 percent: the position was worth roughly $4,500 a year later, and breaking even needed a gain above 230 percent. The same $15,000 averaged in over 12 months bought through the fall at lower average prices and needed a fraction of that recovery. The schedule is not smarter investing; it is the same asset without the mood choosing the entry date.
The barbecue tip at the top
The friend's 300 percent return triggers the buy, and the return is historic rather than forward. $12,000 in at the top is worth roughly $4,800 a year later after a 60 percent drawdown, and the recovery needs a 150 percent gain - the bear-market asymmetry doing its work. The ATO's data-matching sees the disposal either way, and the CGT event is reported whether the tip was good or not. The mood cost $7,200; the tax return still ran.
The auction overbid at a 78 percent clearance weekend
The clearance rate is running at 78 percent, the crowd is bidding, and the budget moves by $40,000 on the day. On an $800,000 loan at 6 percent, the overbid adds roughly $2,400 a year of interest for the life of the loan - roughly $60,000 over 25 years. The price paid for the mood compounds like the mortgage does, and no valuation ever lists 'auction fever' as a line item. The house affordability calculator prices the loan the mood signed.
Common mistakes
Mistake: Buying at the peak because the group chat is euphoric.
Why it bites you: The euphoria is the top of the social proof loop, and the highest inflows arrive at the highest prices. The loop contains the crowd's present, not the asset's future.
Mistake: Abandoning the schedule to lump-sum at the top.
Why it bites you: The schedule averages the entry; the lump sum concentrates it at the worst price of the cycle. The 2021 crypto cohort is the tuition record. Twelve months of averaging into the same asset needs far less recovery to break even.
Mistake: Forgetting the ATO sees the crypto trades.
Why it bites you: Every disposal is a CGT event, and the data-matching program reports the exchanges to the tax office. Brent's $7,000 loss still needed its paperwork.
Mistake: Chasing last cycle's winner into this cycle's top.
Why it bites you: The winner is priced by the time the tip arrives, and the recovery maths after a 60 percent fall needs 150 percent. The asset is rarely the decision; the timing is the cost.
Ivy's take
I ran the FOMO arithmetic on three cycles - the 2021 crypto peak, the meme-stock rallies and the 2021 auction season - so you don't have to. The pattern held in all three: the highest inflows arrived within weeks of the highest prices, and the cohort that bought on the tip sold on the fear two years later. The loop is not a conspiracy; it is a clock, and the mood reads it backwards.
Brent's barbecue tip is the cleanest case: $12,000 in at the top, a $7,000 loss, a CGT event with paperwork either way. I have stopped taking investing tips at barbecues and started writing the plan before the summer begins. The plan has one rule: the group chat is not an input.
Related jargon, defined
- Social proof
- Treating other people's behaviour as information - the engine of the FOMO loop.
- Dollar-cost averaging
- A fixed amount on a schedule, which removes the mood from the entry date.
- Herd mentality
- Following the crowd's direction, which peaks at the price extremes.
- Drawdown
- The peak-to-trough fall that follows the FOMO entry.
- Capital gains tax
- The tax every disposal triggers, reported on the return either way.
- Data-matching
- The ATO program that collects trade data from the exchanges and platforms.
Frequently asked questions
What is FOMO investing?+
It is buying driven by other people's gains rather than by the asset: the group chat, the barbecue tip, the auction fever. The timing it produces is the problem - the highest inflows arrive at the highest prices.
How do I avoid buying at the top?+
Write the plan before the hype starts: a fixed monthly amount into a diversified asset, executed on payday. The schedule removes the mood from the entry date, which is the entire trick.
Does the ATO know about my crypto trades?+
Yes - the data-matching program collects trade data from Australian and offshore exchanges. Every disposal is a CGT event, and gains and losses both belong on the return.
Is FOMO the same as greed?+
Not quite - greed wants the gain, FOMO fears the missed one, and the fear recruits more reliably than the want. Both buy at the same point in the price cycle, which is why the outcome rhymes.
Why does everyone seem to be making money except me?+
The gains you hear about are the survivors of the cycle, reported at the top when they are loudest. The losses are quiet, and the inflows that chase the loudest gains arrive at the worst prices.
Disclaimer: This information is general in nature and does not constitute financial or legal advice. Always consult a qualified professional for your specific situation.
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Ivy Sinclair-Wren
Financial Chaos Analyst
Ivy Sinclair-Wren is a Financial Chaos Analyst covering investing, AI, wealth psychology, and the emotional consequences of opening finance apps during market crashes. Based in Melbourne, she specializes in demystifying the Australian tax code and helping users navigate the intersection of spreadsheet logic and human irrationality.