FOMO (fear of missing out) is the urge to buy because others appear to be profiting.
FOMO drives late entries into attention spikes and memecoin verticals.
In research workflows, FOMO is usually interpreted with FUD, Virality, Memecoin, and Retail trader rather than as a standalone signal. Acceleration often matters more than absolute mention counts. Loud but fading hype is a different setup from quiet but rising chatter.