- UK stocks opened higher on Friday after Greece was given some debt relief by European leaders but uncertainty still simmered over US-China trade relations.

At 0856, the benchmark FTSE 100 index was up 19.79 points, or 0.3%, at 7.576.23.

House builders were some of the biggest gainers, with Berkeley Group, Barratt Developments and Persimmon rising 1.6%, 1.4% and 1.4%, respectively.

Life sciences investor Syncona gained 3.8% on news that portfolio company Autolus Therapeutics had priced its US initial public offering. Woodford Patient Capital Trust, which also held shares in Autolus, also gained 3.0%.

Respiratory drug developer Synairgen gained 3.7% after it said safety data from a trial of its treatment for chronic obstructive pulmonary disease showed it was being well tolerated.

Rare diseases-focused pharmaceutical company Shire said it had completed a retrospective review of more than 2,500 patient records with pancreatic cancer, potentially improving treatment regimes. Shires shares lost 0.4%.

Gambling software developer Playtech said Italian regulators had approved the mandatory takeover offer of the remaining shares of Snaitech, which it acquired in a €846m bid. The shares pushed 0.7% higher.

Software provider Imaginatik gained 3.0% on new it had signed a contract with a 'leading' European wine producer that it didn't identify.

Industrial cleaning group React slipped 3.8% as its interim losses deepened and it indicated it would shut its asbestos removal business.

Digital communications group Next Fifteen gained 2.2% after it said organic revenue growth so far this financial year had remained in the high single digits.

Victoria Oil & Gas said it posted another annual loss that failed to meet its expectations after it encountered contracting problems in Cameroon. Its shares fell 0.9%. Recruitment agency Prime People shed 5.2% after it posted a 37% decline in annual profit, as costs rose and fee income fell.

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