Goldman Sachs double downgraded Dollar Tree (DLTR) to sell from buy. Ben Watson examines the downward candles on the discount retailer's stock. On the short-term 5-day chart, he displays a shift lower in the company's MACD momentum study and indicates a range between $101.50 and $109.50. Zooming out, he shows a cup and handle pattern getting tested on a 1-year chart. Ben also highlights the stock's 50-day moving average hovering around the $97 level.