Source - SMW
UK stocks opened slightly lower on Friday as Brexit negotiations entered a more testing phase and doubts lingered about the progress of US tax cuts.

At 0855, the benchmark FTSE 100 index was down 7.93 points, or 0.1%, at 7,440.19.

BT and Sky said they had singed a multi-year deal for BT to market and sell Sky's TV service to its customers. BT and Sky shares rose 0.5% and 0.6%, respectively.

Standard Life Aberdeen eased back 0.1% as net outflows kept assets under management and administration flat for the first nine months of the year.

Home builder Persimmon said chairman Nicholas Wrigley would resign after acknowledging that the company's long-term incentive plan should have been capped. Its shares shed 1.2%.

People screening technology provider Thruvision said first-half losses more than doubled after it booked a loss on the sale of its video business. Its shares, however, rose 0.8%.

LED lighting company Luceco plunged 42% after a failure to value its stock properly prompted a profit warning and the resignation of its financial controller.

Also issuing a steep profit warning was language translation software provider SDL, which tumbled 22%.

WH Ireland Group slipped 5.9% after announcing that costs had risen more than expected and would adversely affect its profitability in 2017.

Telit Communications added 1.3%, despite announcing that it expected to incur exceptional charges of around $25m during the current financial year.