$GRASS broke above its one-year high (0.8473) on a surge in volume, with turnover at twice the 20-day average. The current price is 0.8255.
A price breakout accompanied by rising volume often means buyers are willing to step in at higher levels, while selling pressure from investors stuck near the previous high is being absorbed.
However, the price has already fallen back below 0.8473, raising significant suspicion of a failed breakout. It should not be treated as a confirmed breakout until it moves back above that level.