Why did the stock price drop so much?Arm Holdings (ARM -6.63%) share price plunged despite the semiconductor company reporting robust revenue growth in the latest quarter. Investors were not happy with the company's guidance, as it just reiterated its full-year outlook while lowering its growth expectations for royalty revenue.Despite the recent decline, the stock is still trading up nearly 51% this year. Despite that performance, it still trades down over 39% from an all-time high set in early July.The que ...