高騰【こうとう】
sharp rise (in prices), steep rise, substantial increase, soaring
急騰【きゅうとう】
sudden rise (in price), sharp rise, jump, surge
沸騰【ふっとう】
boiling, seething, becoming heated (e.g. of a debate), excitement, agitation, fermentation, soaring (of prices), shooting up
暴騰【ぼうとう】
sudden rise, sharp rise, boom, skyrocketing
反騰【はんとう】
reactionary price rise
騰勢【とうせい】
upward trend