The Psychology of FOMO in Trading: Why You Keep Buying the Top

FOMO (fear of missing out) in trading is the urge to jump into a trade because a price is moving and you're afraid of missing the gain. It usually leads to entering late, near the top of a move, with no plan and too much size. It's one of the most common and expensive habits among new traders.
What is FOMO?
Psychologists Andrew Przybylski and colleagues described FOMO as a pervasive worry that others might be having rewarding experiences you're missing out on, along with a desire to stay continually connected to what others are doing.
In trading, the "rewarding experience" is a big move you're not in. A stock jumps, a chart goes vertical, or someone posts a winning screenshot, and the feeling of being left behind takes over.
Why FOMO makes you buy the top
FOMO trades share a pattern:
- They're late. By the time a move feels obvious and urgent, much of it has often already happened.
- They're unplanned. There's no clear reason for entry, no stop-loss and no exit plan.
- They're oversized. Wanting to "make up" for missing the start, traders often go bigger than usual.
Research supports how costly attention-driven buying can be. Barber and Odean found that individual investors tend to be net buyers of attention-grabbing stocks: those in the news, with unusual volume, or with extreme one-day moves. A later study of Robinhood users found that the stocks they bought most heavily each day went on to underperform, with average 20-day abnormal returns of −4.7%.
The moment you most want to buy, because everyone is talking about it, is often a poor time to buy.
Why FOMO is so hard to resist
- Social proof. When many people are buying, it feels safer to join them.
- Regret avoidance. Missing a gain can feel worse than taking a planned, smaller one.
- Constant exposure. Price alerts, social feeds and live charts keep the "missed move" in front of you all day.
What FOMO does to a new trader over time
- Repeated late entries that turn into quick losses.
- Broken rules, because FOMO trades skip the plan entirely.
- A frustration cycle: a FOMO loss triggers the urge to win it back, which can lead to revenge trading. (See Trading Psychology: Why It Matters More Than Your Strategy.)
How to stop chasing trades
- Plan your trades before the market opens. Decide which setups you'll take. If a trade isn't on your plan, it's not your trade.
- Use a waiting rule. Before any unplanned entry, wait a few minutes and write down why you want in. The urge often fades.
- Accept that missing moves is normal. There will always be another setup. Missing one costs nothing; chasing one can cost a lot.
- Never enter without an exit. If you can't say where your stop-loss goes, don't enter.
- Limit the noise. Turn off non-essential price alerts and step away from social feeds during trading hours.
- Log FOMO trades honestly. Tag them as FOMO in your journal, then review them weekly. Seeing the pattern in your own data is often what finally changes it.
Key takeaways
- FOMO is the fear of missing a gain, and in trading it leads to late, unplanned, oversized entries.
- Research shows retail traders tend to buy what grabs their attention, and heavy attention-driven buying has been followed by weak returns.
- Missing a move costs nothing; chasing one often does.
- A pre-market plan, a waiting rule and an honest trade log are the most practical defences.
Frequently asked questions
Is FOMO normal in trading?
Yes, almost every trader feels it. The goal isn't to never feel it, but to stop it from making your decisions.
How do I know if a trade is FOMO?
If you didn't plan it, you feel rushed, and your main reason is "it's moving and I don't want to miss it", it's likely FOMO.
Does tracking FOMO trades help?
Yes. Tagging and reviewing them shows how often they happen and what they cost you, which makes the habit much easier to change. See how TruTradr helps.
Sources
- Przybylski, A. K., Murayama, K., DeHaan, C. R., & Gladwell, V. (2013). Motivational, emotional, and behavioral correlates of fear of missing out. Computers in Human Behavior, 29(4), 1841–1848.
- Barber, B. M., & Odean, T. (2008). All That Glitters: The Effect of Attention and News on the Buying Behavior of Individual and Institutional Investors. The Review of Financial Studies, 21(2), 785–818.
- Barber, B. M., Huang, X., Odean, T., & Schwarz, C. (2022). Attention-Induced Trading and Returns: Evidence from Robinhood Users. The Journal of Finance, 77(6), 3141–3190.
This article is for educational purposes only and isn't financial advice.

