The FTSE 250 fell 0.2% to 17,559 despite the second estimate of third quarter GDP showing the UK economy growing by 0.5%, while the blue chip index was flat.
The Office for National Statistics said growth was supported by export growth and stronger consumer spending.
FTSE 100 RISERS AND FALLERS
BHP Billiton (BLT) reported it is paying $181m (£145m) to fund remediation and compensation programmes following a mud slide at its Samarco operation in Brazil.
FTSE 250 RISERS AND FALLERS
Waste management firm Pennon (PNN) nudged higher on flat top-line growth and a 6% increase in underlying earnings before interest, tax, depreciation and amortisation (EBITDA) in the six months to 30 September.
SMALL CAP RISERS AND FALLERS
Shares in Constellation Healthcare (CHT) rallied 22.3% to 227.5p after a 270p a share takeover. The billing services provider to US physicians recommended the 270p a share offer to shareholders, but can look for other potential buyers until the deal is approved.
African airline Fastjet (FJET) failed to take off as it signalled the need for more capital from shareholders.It incurred higher-than-expected costs on a business turnaround plan which will mean shareholders are likely to need to provide more capital after a previous cash call four months ago.
Investors dug Regency Mines (RGM) after it announced a heads of terms agreement to acquire a significant shareholding in Carbon Minerals, which entered an agreement to acquire the Rosa metallurgical coal mine. Shares in Regency jumped by over 20%.
Software development firm Triad (TRD) gained 20% as its profit after tax more than tripled from £22m to £69m; due to a stronger order book. Equipment hire outfit VP (VP.) secured a bolt-on acquisition in New Zealand. The company said it is buying test and measurement specialist TechRentals for $2.6m New Zealand dollars (£1.5m).
Half-year results at auto retailer Caffyns (CFYN) sent the stock lower as chief executive Simon Caffyn said new car sales are likely to be weaker moving into 2017 after unusually strong trading around the September new registration plate date.
Engineering services provider Lamprell (LAM) won a new contract from ScottishPower Renewables for the fabrication of kit for the East Anglia One offshore wind farm.
Wellbeing personal monitoring tech firm CloudTag (CTAG) was in positive territory after entering an agreement with Griffin International Companies to act as its exclusive sales representative.
Ithaca Energy (IAE) suffered a 10% share price fall following the identification of faults on several electrical junction boxes on the Stella field commissioning programme's processing facilities.