Ontology (ONT) surged in South Korean won trading on Tuesday ET, with sentiment gauges flashing a rare ‘extreme greed' signal even as a sharp rise in turnover raised the risk of whipsaw price action. According to market data from KRW pairs, ONT's short-term ‘fear and greed' index hit 99—deep in the ‘very greedy' zone—while the token changed hands around 102 won, up 12.71% on the day.