The FTSE 100 opened slightly higher this morning as traders awaited key addresses from US Federal Reserve chair Janet Yellen and European Central Bank chief Mario Draghi at the Jackson Hole meeting.
Held in Wyoming this annual summit of central bankers is closely monitored by traders and investors for clues on the future direction of monetary policy.
Shares in supermarkets Tesco (TSCO) and Sainsbury (SBRY) are under pressure down 2.1% to 183.6p and 1.2% to 234.4p respectively.
Troubled non-prime lender Provident Financial (PFG) gains 6% to 793p as it appoints a new head of its consumer credit division, appointing Chris Gillespie to replace Andy Parkinson 'with immediate effect'. Provident lost two thirds of its market value after a major profit warning on Tuesday.
FTSE 250 IT services specialist Computacenter (CCC) gains 10.2% to 971p as it reports a 66% increase in pre-tax profit to £41.9m driven by favourable currency movements and an 'outstanding' contribution from its German operation.
Semiconductor minnow Nanoco (NANO) falls 6% to 27.5p as it says the market for its Cadium Free Quantum Dots - used for applications from LCD displays to biomedical applications - continues to 'develop more slowly than originally anticipated'. In its full year trading update the company says revenue and net cash is in line with expectations. Results covering the 12 months to 31 July are out in October.
Project manager and technical consultant WYG (WYG:AIM) falls 33.5% to 61.5p as it says first operating profit will be significantly lower than 2016's £2.8m as two major projects have taken longer to start than anticipated.
Hazardous waste expert Augean (AUG:AIM) slumps 32.4% to 37.5p as it reports it has received a landfill tax bill of £2.1m (including interest) the company plans to appeal.
