ET Intelligence Group: Shares of most listed wire and cable makers have lost 3-11% in the past two trading sessions amid concerns over the impact of Aditya Birla Group's foray into the sector under the brand Ultravolt. The entry of a well-funded company with a focus on strengthening pan-India distribution is expected to intensify competition in the retail segment, which is currently dominated by Polycab Industries, Havells India, KEI Industries, and RR Kable.On the other hand, companies cater...