Utilitywise plc (LON:UTW) saw its shares rise 7.1% to 29.8p in late-afternoon trading as increased customers led to double digit profit growth in its interim results.
The AIM-listed utilities consultant reported a pre-tax profit of ?950,000, swinging from a ?12.9mln loss for the same period last year which was caused mainly by legal and restructuring costs.
Revenue for the period grew to ?39.7mln from ?38.4mln previously, driven by a 1% increase in total customer numbers to 43,000.
Elsewhere, shares in Savannah Petroleum jumped 5.5% to 29.3p as it said its Bushiya-1 exploration well in Niger encountered ten metres of net oil-bearing reservoir sandstones across two intervals in the primary Eocene Sokor Alternances objective.
Wireline logs have indicated the reservoir properties in both sections to be of good quality with light oil contained within both intervals. The well was drilled to a total measured depth of 2,200 metres in 16 days, and all operations are expected to be completed within 25 days of spud, with well costs set to be under budget.
GBGI Limited (LON:GBGI) shares slid 19.2% to 90p in mid-afternoon trading as the insurance group saw its 2017 profits reduced by impairment charges from its Angola business.
The AIM-listed firm reported pretax profits of US$3.6mln, down from US$11.2mln the year prior despite a revenue increase to US$155.9mln from US$35.9mln last year.
Net claims paid grew to US$62.5mln from US$37.4mln the year before while administrative expenses rose to US$53.9mln from US$35.9mln the year before. This was primarily due to a US$12.3mln impairments associated with its Angola operations.
Meanwhile, shares in 7digital Group PLC (LON:7DIG) rose 8% to 4.3p as it reported a positive start to the financial year.
The AIM-listed digital music provider reported first quarter licensing revenues of ?3.6mln, matching company expectations, adding that it had also secured a deal with a China-based social network.
Tristel Plc (LON:TSTL) shares jumped 9.9% to 305p in lunchtime trading as its foam-based chlorine dioxide product, Duo, received approval from the US's Environmental Protection Agency (EPA).
The AIM-listed hygiene product maker said the federal registration would be followed by state-by-state approvals which are expected to complete at the end of 2018, with first revenues from the US market in its 2018-19 financial year.
Meanwhile, Petra Diamonds Ltd (LON:PDL) shares rose 6.4% to 69p as the firm reported a jump in third-quarter revenue driven by record quarter for production.
In a trading update, the small cap firm said its revenue for the quarter ended March 31 rose by 44% to US$172mln, up from US$119.1mln a year earlier, as it sold 1,373,771 carats of diamonds compared to 1,069,886 sold at the same stage a year earlier.
Elsewhere, shares in FTSE 100 retailer Marks and Spencer Group Plc (LON:MKS) were up 0.3% at 281.5p after Credit Suisse upgraded the stock to 'neutral' from 'underperform' amid signs of a recovery in the UK consumer environment.
The UK retailer, whose clothing division was already struggling, has been hit by a slowdown in consumer spending as higher inflation and stagnant wage growth reduce disposable incomes.
Paragon Entertainment Limited (LON:PEL) saw its shares fall 29.2% to 1.4p in late-morning trading after it announced the start of a ?150,000 restructuring programme.
The AIM-listed attraction designer said due to major cost overruns on two large projects, underlying earnings for the year were expected at ?200,000 on revenues of ?14.7mln.
With slower trading expected to have a knock-on effect in 2018, the group said it would begin restructuring immediately with a view to achieving annualised cost savings of ?400,000.
Meanwhile, Sportech plc (LON:SPO) shares dropped 3% to 63p as it agreed to sell its Netherlands business, Sportech Racing BV, to RBP Luxembourg for ?,?3.3mln.
The transaction is expected to close in the second half of 2018, with ?,?2.8mln payable at closing and the remaining ?,?450,000 due in January 2019.
Nanoco Group PLC (LON:NANO) saw shares jump 11.7% to 41.2p in mid-morning trading as it signed a second agreement with a US listed partner firm to develop nano-materials for future technologies and advanced electronics.
The nano-technology maker said development would begin immediately at its research and development facility in Manchester, with a "state of the art" production facility in Runcorn planned to commence commercial supply in January 2019.
Meanwhile, Rotork PLC (LON:ROR) shares rose 7.9% to 322.7p as the FTSE 250 engineer reported a 10.2% increase in first quarter revenue on the back of a stronger-than-expected order intake.
Order intake in the three months to April 1 jumped 20.9% at actual exchange rates, with growth across all divisions after the market recovery seen in the final quarter of 2017 continued.
Elsewhere, Capita PLC (LON:CPI) shares were up 10.2% at 176.1p after it announced plans to raise ?701mln through a rights issue.
The fully underwritten rights issue of more than one billion new shares will be priced at 70p per share, representing a discount of about 56.2% to the group's closing price last Friday.
Elsewhere, Capita PLC (LON:CPI) shares were up 10.2% at 176.1p after it announced plans to raise ?701mln through a rights issue.
The fully underwritten rights issue of more than one billion new shares will be priced at 70p per share, representing a discount of about 56.2% to the group's closing price last Friday.
Safestyle UK PLC (LON:SFE) saw its shares plummet 19.1% to 64.7p in early trading Monday as it expected underlying pre-tax profits to be "significantly below current market expectations".
The AIM-listed double glazing retailer also said non-executive chairman Steve Halbert had resigned from the board with immediate effect.
Meanwhile, FTSE 250 shipping company Clarkson PLC (LON:CKN) shares fell 25% to 2,320p as it warned profits for both the first half and the full year are now anticipated to be materially below those of last year.
In a brief trading update, the FTSE 250-listed firm said that the challenging environment in shipping and offshore capital markets has led to transactions being pushed back within the financial segment.