Apple's iPhone 5 hits Volex shares Volex, a London-based component supplier which relies heavily on the California-based company, issued a profit warning after Apple introduced a new style of charger for its latest smartphone. Shares in Volex fell 28pc to 183.82p after it said profits would be flat because of a "recent unexpected change in forecast demand" from its largest customer, and "a change in [that company's] product component strategy." Analysts at Charles Stanley estimate that 30pc of Volex's revenues come from Apple. Volex also blamed "a delay in product launches" for the profit downgrade. However, the iPhone 5"s launch had the opposite effect for Carphone Warehouse. The mobile phone retailer said more customers had placed pre-orders for the new handset than for any other mobile phone in the history of the business. "It was the most successful week we've ever had online," said Graham Stapleton, chief commercial officer. Apple said more than 2m customers had ordered the phone on Friday, the first day that consumers could make purchases over the web.