leaping up, jumping up, rising, advancing, going
騰 centers on upward motion: leaping, jumping, rising, or advancing. The sense of 'going' is a natural extension of moving forward or upward.
騰 combines 馬 (horse) with a phonetic component that also suggests rising. The idea is a horse leaping or rearing up, giving the sense of jumping or rising.
A horse (馬) leaps up, rising and advancing. Picture a horse jumping over an obstacle, its body surging upward.
For トウ, imagine a horse leaping over a tall tower (タワー -> トウ). The tower cues the reading while the horse jumps up.
sharp rise (in prices); steep rise; substantial increase; soaring
boiling; seething
sudden rise (in price); sharp rise; jump; surge
sudden rise; sharp rise; boom; skyrocketing
rise and fall; fluctuations; ups and downs
advance; rise; jump
(enjoying) tumultuous popularity
ebullism; formation of gas bubbles in bodily fluids
reactionary price rise
soar (e.g. in price); jump; boom; sudden ride
boiling-water reactor; BWR
boiling point
price rise
rise in prices
continued advance (in market price); continued rise
being much talked about; creating a stir; being the talk of town
discussion (argument) becoming heated; debate being in a ferment
upward trend
Tencent (Chinese conglomerate)
rise (in price or value); appreciation; advance