This indicates as a warning signal to traders, as per the report. What happened to Nvidia's stock this week? Nvidia's stock dropped by 18% in just seven days, with an 8% drop on Monday alone, hitting a new low of $114.51. Why did Nvidia's stock drop so much? The stock entered a bear market after falling more than 20% from its January highs, and concerns over leaked chip sales to China, along with a disappointing earnings report, according to Business Insider.