All gaps must be filled is a good rule to follow but only on the way up. On the way down though, not all gaps will be filled.
So here is a very potential very bullish chart attempting to fill the gap.
I will check back. $CLVS is in the same boat by the way.
So here is a very potential very bullish chart attempting to fill the gap.
I will check back. $CLVS is in the same boat by the way.