Boost Mobile, Sprint Nextel’s prepaid mobile unit, launched a $50-a-month nationwide unlimited calling plan on Thursday, raising fears of a US pricing war and sending shares of rivals Leap Wireless and MetroPCS Communications tumbling.
Leap dropped $2.47, or 8.9 per cent, to $25.23 in Nasdaq Stock Market trading. MetroPCS fell $2.10, or 13 per cent, to $13.87 in New York Stock Exchange composite trading.
