Dollar Tree Inc (NASDAQ:DLTR) stock nabbed a record high of $116.51 yesterday after an overdue price-target hike from Bernstein to $109 from $86. However, despite a 54.5% year-to-date gain, the discount retailer is entering a period of historical bearishness. DLTR is one of the worst stocks to own in August, per Schaeffer's Senior Quantitative Analyst Rocky White. Per the table above that goes back 10 years, the equity averages a monthly loss of 8.2%, finishing the month lower 80% of the time over the past ...