[Apple’s strong Q4 performance still conceals hidden concerns: rising storage prices drag down profit prospects. iPhone Duo is still in limited supply] November 3rd, after the market closed on Monday Eastern Time, Apple announced its fourth quarter financial report. Thanks to the impressive sales of the new iPhone and the support of its price increase strategy, Apple's quarterly revenue and profit exceeded market expectations. However, at the financial report meeting, Apple management warned that due to the rising cost of memory chips, the company's gross profit margin will be lower in the next critical holiday quarter. At the same time, the company's service business revenue growth guidance was significantly lower than Wall Street expectations. The warning sent the company's stock price down 4% after hours. As of press time, the company's stock price fell 2.79% after hours.