I think the reason for the big drop is the drop in EPS coupled with weakness in the overall markets. Nearly every analyst saying YLO is a buggy whip industry doesn't help either.

While I am not sure what to do about YLO (still own much scaled back holding), here is a hypothetical strategy. Buy a position at current level ($5.08). Increase the holding at $4.80 (the low in mid '09) or above $5.44 (the resistance it dropped back against a week or so ago). Stop loss at $4.60 or so which is below the low it set in the big crash of early '09.

Or, put the $ somewhere else....