美股异动 | 多邻国(DUOL.US)盘中转跌 股价跌超5.6%

Group 1 - Duolingo's stock price experienced a decline, dropping over 5.6% to $368.725 after reaching a peak of $415.76 [1] - Investors are concerned about competition from large models like GPT-5 potentially undermining Duolingo's competitive advantage [1] - Morgan Stanley argues that the primary barrier to language learning is the lack of motivation for consistent practice, rather than just technological tools [1] Group 2 - Duolingo has established a strong competitive moat through gamification, social interaction, and engaging design, which enhances user retention [1]