Record full year and fourth quarter revenues from electronics group Renishaw (RSW) excites the shares, sparking a 15% jump to £16.89. 'Given these results and current trading we are upgrading our forecasts by 8%,' say analysts at Numis, which is now looking for £78.3 million pre-tax profit on £366.2 million revenue to June 2015.

Steady new customer adds from TalkTalk (TALK) are offset by slowing average revenue per user (ARPU) metrics in the first quarter to end June. Churn of 1.4% still above target of 1.2%, knocking the shares 1% lower to 316.9p. The group has also 'extended and expanded its wholesale deal with British Sky Broadcasting (BSY), helping differentiate its TV product,' point out analyst at Barclays.

Beleaguered Mr Kipling, Oxo and Batchelors soup-maker Premier Foods (PFD) perks up 2.7% to 48p as investor focus turns towards prospects for a second half turnaround. Tuesday's interim figures revealed a 6% sales fall, though trading profits were slightly better than expected. Shares warned investors off the stock at 73.5p back in March.

Driver monitoring technology supplier Seeing Machines (SEE:AIM) jumps 15% to 4.88p as it secures a trial and distribution deal for its DSS platform with Finning International, the world's largest Caterpillar dealer.

Private hospital operator Spire Healthcare (SPI) barely moves in opening trading, up just 0.4% to 212.1p on its first day of unconditional dealing. trading. The company went public to reduce debt and raise growth funds.

Chemicals giant Johnson Matthey (JMAT) falls 2.2% to £29.93 after an interim management statement warns of a flat performance this year.

GP landlord Assura (AGR) falls 1.1% to 44.7p as it invests £2.7 million cash in a medical centre in Middlesbrough. The rental yield is anticipated at 6.5% per year.

Life sciences research company Horizon Discovery (HZD:AIM) rises 2.1% to 177.5p as it reassures on revenues for the six months to June of £4 million, 36% up year-on-year.

Issue Date: 23 Jul 2014