Apple Plunge Erases $32 Billion as Product Concerns Reappear

Just How Many Watches Did Apple Sell?

Apple Inc. shares tumbled, wiping out $32 billion in market value, after disappointing iPhone sales rekindled concerns over whether the company can keep making must-have products.

Even though iPhone sales climbed 35 percent to 47.5 million units in the fiscal third quarter, the result fell short of the