TalkTalk shares slump on profit warning as firm targets fibre launch

Shares in TalkTalk have tanked after the telecoms group warned over profits while unveiling plans to roll out full fibre broadband to three million homes and businesses through a joint venture with Infracapital.

The firm slashed its annual earnings outlook to between £230m (€260.65m) and £245m (€277.64m) from £270m (€305.97m) to £300m (€339.97m), sending shares sliding more than 14% during morning trading on the London Stock Exchange.