TOKYO -- Shares of Japan's big three telecommunications companies plunged on Thursday, a day after NTT Docomo announced it would lower prices by up to 40%, denting earnings prospects.
NTT Docomo's stock price fell as much as 15% to 2,406 yen, a two-year low for the top player, before ending the session down 14.7%. Second-ranked KDDI plunged 16.1%, while Masayoshi Son's SoftBank Group, the third-largest carrier, fell 8.1% to a four-month low.
