Core Viewpoint - The Trade Desk Inc. and Duolingo Inc. have experienced significant declines in their stock prices, raising questions about their investment potential amidst a generally bullish market environment [1][3]. Group 1: The Trade Desk Inc. (TTD) - The Trade Desk's stock has fallen over 50% since its Q2 earnings report in August, closing around $45, down from a high of $141.53 [3][4]. - Concerns about slowing growth have led to bearish analyst updates, including a downgrade from Morgan Stanley, which highlighted doubts about the company's ability to sustain previous growth rates [4][7]. - Despite the negative sentiment, some analysts, like those at Needham, maintain a Buy rating with a price target of $80, suggesting a potential upside of nearly 80% from current levels [7]. Group 2: Duolingo Inc. (DUOL) - Duolingo's stock has also halved since early June, with current trading around $278.40, down from a 52-week high of $544.93 [8]. - The decline is attributed to fears of slowing engagement growth and competition from AI-powered rivals, although some analysts, like KeyCorp, have upgraded the stock to Overweight with a price target of $460, citing ongoing growth drivers [9][10]. - Zacks Research recently upgraded Duolingo to a Strong Buy, indicating a more favorable technical position compared to The Trade Desk, with an RSI of around 40 [10].