DEFINITION
FOMO (Fear of Missing Out)
An emotional state where a trader enters a position because the market is moving without them, rather than because of a valid signal. A leading cause of late, oversized, and poorly-timed entries.
In depth
FOMO trades typically arrive late in a move (after most of the gain), are oversized (because the trader is "making up" for missing the start), and have poor stops (because the entry was emotional, not technical).
Related terms
Revenge Trading
Taking impulsive, oversized trades to recover losses after a losing trade or day. The single largest source of catastrophic losses in retail trading.
Overtrading
Taking more trades than the strategy signals, often driven by boredom, revenge, or FOMO. Dilutes edge and inflates commission/spread costs. A leading cause of prop firm failures.
Tilt
An emotional state (borrowed from poker) where rational decision-making breaks down after a loss or frustration. Tilt is behind most revenge trades and oversized positions.
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